Publications



OVERVIEW OF RECENT PUBLICATIONS


Texts

G.S. Nolas, editor, The Physics and Chemistry of Inorganic Clathrates, Springer, 2014.

G.S. Nolas, J.W. Sharp and H.J. Goldsmid, Thermoelectrics: Basics Principles and New Materials Developments, Springer-Verlag, Berlin, 2001.


Review Articles and Book Chapters

M. Beekman, K. Wei and G. S. Nolas, 'Clathrates and beyond: Low-density allotropy in crystalline silicon', Appl. Phys. Rev. 3, 040804 (2016).

M. Beekman, D.T. Morelli, and G.S. Nolas, 'Better thermoelectrics through glass-like crystals', Nature Materials 14, 1182 (2015).

A. Datta and G.S. Nolas, 'Nanostructuring and Porosity in Anisotropic Thermoelectric Materials Prepared by Bottom-Up Processing' in Thermoelectric Nanomaterials, edited by K. Koumoto and T. Mori, Springer-Verlag, Berlin, 2013.

A. Datta, A. Popescu, L.M. Woods, and G.S. Nolas, 'The bottom-up approach to bulk thermoelectric materials with nano-scale domains', in CRC Handbook on Thermoelectrics and Its Energy Harvesting on Materials, Preparation and Characterization, Taylor & Francis, edited by David Michael Rowe, 2012.

G.S. Nolas, J. Poon, and M. Kanatzidis, 'Recent Developments in Bulk Thermoelectric Materials,' MRS Bulletin Vol. 31, No. 3, pp. 199-205, March, 2006.

G.S. Nolas, 'Structure, transport and thermoelectric properties of clathrate compounds', in Thermoelectrics Handbook: Macro to Nano-Structured Materials, edited by D.M. Rowe, CRC Press, Boca Raton, FL, 2005, p. 33-1.

G.S. Nolas and H.J. Goldsmid, 'Thermal Conductivity of Semiconductors', in Thermal Conductivity-2003: Theory, Properties and Applications, edited by T.M. Tritt, Kluwar Press, 2005.

G.S. Nolas, J. Yang and H.J. Goldsmid, 'Semiconductors and Thermoelectric Materials', in Thermal Conductivity-2003: Theory, Properties and Applications, edited by T.M. Tritt, Kluwar Press, 2005.

G.S. Nolas, 'Clathrate Thermoelectrics', in Chemistry, Physics and Materials Science of Thermoelectric Materials: Beyond Bismuth Telluride, edited by M.G. Kanatzidis, T.P. Hogan and S.D. Mahanti, Plenum Press, 2003.

G.S. Nolas, 'Skutterudites: Promising materials for thermoelectric applications', in Recent Research Developments in Physics, Vol. 3, Transworld Research, 2001.

G.S. Nolas, G.A. Slack and S.B. Schujman, 'Semiconductor Clathrates: A Phonon-Glass Electron-Crystal Material with Potential for Thermoelectric Applications', in Semiconductors and Semimetals, Vol. 69, edited by T.M. Tritt, Academic Press, 2001.

G.S. Nolas, D.T.- Morelli and T.M. Tritt, 'Skutterudites: A phonon-glass-electron-crystal approach to advanced thermoelectric energy conversion applications', in Annual Review of Materials Research, Vol. 29, 1999.


Edited Volumes

Proceedings of the 2012 Materials Research Society Volume 1490, Thermoelectric Materials Research and Device Development for Power Conversion and Refrigeration, edited by G.S. Nolas, Y. Grin, D. Johnson and A. Thompson.

Proceedings of the 2009 Materials Research Society Volume 1166, Materials and Devices for Thermal-to-Electrical Energy Conversion, edited by J. Yang, G.S. Nolas, K. Koumoto and Y. Grin.

Proceedings of the 2009 Minerals, Metals & Materials Society Volume 38, Journal of Electronics Materials, edited by J. Yang, H. Linke, H. Bottner, M. Subramanian, G.S. Nolas and D.C. Johnson.

Proceedings of the 2005 Materials Research Society Volume 886, Materials and Technologies for Direct Thermal-to-Electrical Energy Conversion, edited by J. Yang, T. Hogan, R. Funahashi and G.S. Nolas.

Proceedings of the 2003 Materials Research Society Volume 793, Thermoelectric Materials 2003 - Research and Applications, edited by G.S. Nolas, J. Yang, T. Hogan, and D.C. Johnson.

Proceedings of the 2001 Materials Research Society Volume 691, Thermoelectric Materials 2001 - Research and Applications, edited by G.S. Nolas, D.C. Johnson and D.G. Mandrus.

Proceedings of the 2000 Materials Research Society Volume 626, New Materials for Small Scale Thermoelectric Refrigeration and Power Generation Applications, edited by T.M. Tritt, G.S. Nolas, M. Kanatzidis, G. Mahan and D.G. Mandrus.


Journal Articles (since 2001)

K. Wei, A. Khabibullin, T. Stedman, L. M. Woods and G. S. Nolas, 'Polaronic transport in Ag-based quaternary chalcogenides', J. Appl. Phys., 122, 105109, (2017).

D. Hobbis, Y. Liu, K. Wei, T. M. Tritt and G.S. Nolas, 'High Temperature Transport Properties of Yb and In Double-Filled p-Type Skutterudites', Crytsals, 7, 256, (2017).

B.Böhme, K. Wei, M. Bobnar, Y. Prots, U. Burkhard, M. Baitinger, G.S. Nolas and Y. Grin, 'A type-II clathrate with a Li-Ge framework', Zeitschrift für Kristallographie, 232, DOI: https://doi.org/10.1515/zkri-2017-2046 (2017).

K. Wei, J. Martin, S. Maruyama, T. Mori and G. S. Nolas, ‘Physical properties of madocite: A quaternary chalcogenide with very low thermal conductivity’, J. Solid State Chem. 251, 113 (2017).

H. Zhang, H. Liu, K. Wei, O. Kurakevych, Y. L. Godec, Z. Liu, J. Martin, M. Guerrette, G. S. Nolas and T. A. Strobel, 'BC8 Silicon (Si-III) is a Narrow-Gap Semiconductor', Phys. Rev. Lett. 118, 146601 (2017).

A. R. Khabibullin, T. D. Huan, G. S. Nolas and L. M. Woods, 'Cage disorder and gas encapsulation as routes to tailor properties of inorganic clathrates', Acta Mater., 131, 475, (2017).

Z. Ge and G. S. Nolas, 'Purification and crystal growth of single-crystalline tellurium tubes and rods', Mater. Lett. 194, 20 (2017).

K. Wei, X. Zeng, T. M. Tritt, A. R. Khabibullin, L. M. Woods and G. S. Nolas, 'Structure and Transport Properties of Dense Polycrystalline Clathrate-II (K,Ba)16(Ga,Sn)136 Synthesized by a New Approach Employing SPS', Mater. 9, 732 (2016).

G. S. Nolas, S. M. Hassan, Y. Dong and J. Martin, 'Synthesis, crystal structure and electrical properties of the tetrahedral quaternary chalcogenides CuM2InTe4 (M=Zn, Cd)', J. Solid State Chem. 242, 50 (2016).

I. Veremchuk, M. Beekman, I. Antonyshyn, W. Schnelle, M. Baitinger, G. S. Nolas and Y. Grin, 'Binary Alkali-Metal Silicon Clathrates by Spark Plasma Sintering: Preparation and Characterization', Mater. 9, 593 (2016).

K. Wei, Y. Dong and G. S. Nolas, 'Precursor routes to quaternary intermetallics: Synthesis, crystal structure, and physical properties of clathrate-II Cs8Na16Al24Si112', J. Solid State Chem. 237, 81 (2016).

J. Martin and G. S. Nolas, 'Apparatus for the measurement of electrical resistivity, Seebeck coefficient, and thermal conductivity of thermoelectric materials between 300 K and 12 K', Rev. Sci. Instrum. 87, 015105 (2016).

K. Wei and G. S. Nolas, 'Porosity Effects on the Thermoelectric Properties of Nanostructured Bismuth', J. Electron. Mater. 45, 1970 (2016).

K. Wei, T. Stedman, Z. Ge, L. M. Woods and G. S. Nolas, 'A synthetic approach for enhanced thermoelectric properties of PEDOT:PSS bulk composites', Appl. Phys. Lett. 107, 153301 (2015).

T. Stedman, K. Wei, G. S. Nolas and L. M. Woods, 'Thermoelectricity in polymer composites due to fluctuation-induced tunneling', Phys. Chem. Chem. Phys. 17, 27883 (2015).

Y. Dong and G. S. Nolas, 'Crystal Growth through Field-Assisted Electrochemical Redox and Ion-Exchange Reactions: A Case Study of K4.2Na3.8Si46 Clathrate-I', Cryst. Growth Des. 15, 4731 (2015).

Y. Dong, A. R. Khabibullin, K. Wei, J. R. Salvador, G. S. Nolas and L. M. Woods, ' Bournonite PbCuSbS3: Stereochemically Active Lone-Pair Electrons that Induce Low Thermal Conductivity', ChemPhysChem, 16, 3264 (2015).

K. Wei, L. Beauchemin, H. Wang, W. D. Porter, J. Martin, and G. S. Nolas, 'Enhanced thermoelectric properties of Cu2ZnSnSe4 with Ga-doping', J. Alloys and Comp., 650, 844 (2015).

Y. Dong, P. Chai, M. Beekman, X. Zeng, T. M. Tritt and G. S. Nolas, 'Precursor Routes to Complex Ternary Intermetallics: Single-Crystal and Microcrystalline Preparation of Clathrate-I Na8Al8Si38 from NaSi + NaAlSi', Inorg. Chem. 54, 5316 (2015).

K. Wei, J. Martin, J. R. Salvador, and G. S. Nolas, 'Synthesis and Characterization of Bournonite PbCuSbS3 Nanocrystals', Cryst. Growth Des. 15, 3762 (2015).

Y. Dong, L. Wojtas, J. Martin, and G. S. Nolas, 'Synthesis, Crystal Structure, and Transport Properties of Quaternary tetrahedral Chalcogenides', J. Mater. Chem. C, 3, 10436 (2015).

K. Wei and G. S. Nolas, 'Synthesis and Characterization of Nanostructured Stannite Cu2ZnSnSe4 and Ag2ZnSnSe4 for Thermoelectric Applications', ACS Appl. Mater. Interfaces 7, 9752 (2015).

Y. Dong, B. Eckert, H. Wang, X. Zeng, T.M. Tritt and G. S. Nolas, 'Synthesis, Crystal Structure, and Transport Properties of Cu2.2Zn0.8SnSe4-xTex (0 ≤ x ≤ 0.4) ', Dalton Trans. 44, 9014 (2015).

K. Wei and G. S. Nolas, 'Synthesis, characterization and alloying of Cu2ZnSnQ4 (Q=S, Se and Te) nanocrystals', J. Solid State Chem. 226, 215 (2015).

L. Krishna, P. Chai, C. A. Koh, E. S. Toberer, and G. S. Nolas, 'Synthesis and structural properties of type I potassium SiGe alloy clathrates', Mater. Lett. 149, 123 (2015).

Y. Dong and G. S. Nolas, 'Rapid Crystal Growth of Type-II Clathrates A8Na16Si136 (A = K, Rb, Cs) by Spark Plasma Sintering', Cryst. Eng. Comm. 17, 2242 (2015).

Z. Ge, K. Wei, H. Lewis, J. Martin, and G. S. Nolas, 'Bottom-up processing and low temperature transport properties of polycrystalline SnSe', J. Solid State Chem. 225, 354 (2015).

A. Biswas, S. Chandra, S. Stefanoski, J. S. Blazquez, J. J. Ipus, A. Conde, M. H. Phan, V. Franco, G. S. Nolas, and H. Srikanth, 'Enhanced cryogenic magnetocaloric effect in Eu8Ga16Ge30 clathrate nanocrystals', J. Appl. Phys. 117, 033903 (2015).

Y. Dong, P. Puneet, T. M. Tritt, and G. S. Nolas, 'High-temperature thermoelectric properties of p-type skutterudites Ba0.15YbxCo3FeSb12 and YbyCo3FeSb9As3', J. Mater. Sci. 50, 34 (2015).

H. J. Jakobsen, H. Bildsøe, M. Beekman, S. Stefanoski, G. S. Nolas, and C. R. Bowers, 'Low-Temperature 23Na MAS NMR Reveals Dynamic Effects and Compositions for the Large and Small Channels in the Zeolite-Like Ge-Framework of Na1-xGe3+z Materials', J. Phys. Chem.118, 28890 (2014).

K. Wei, Y. Dong, P. Puneet, T. M. Tritt, and G. S. Nolas, 'Synthesis, crystal structure, and transport properties of Fe substituted rhombohedral skutterudite derivatives Co4-xFexGe6Se6', J. of Alloys and Comp. 614, 330 (2014).

Y. Dong, A. R. Khabibullin, K. Wei, Z. Ge, J. Martin, J. R. Salvador, L. M. Woods and G. S. Nolas, 'Synthesis, transport properties, and electronic structure of Cu2CdSnTe4', Appl. Phys. Lett. 104, 252107 (2014).

Z. Ge, J. R. Salvador, and G. S. Nolas, 'Selective Synthesis of Cu2SnSe3 and Cu2SnSe4 Nanocrystals', Inorg. Chem. 53, 4445 (2014).

K. Wei, J. Martin, and G. S. Nolas, 'Synthesis, SPS processing and low temperature transport properties of polycrystalline FeSb2 with nano-scale grains', Mater. Lett. 122, 289 (2014).

Z. Ge and G. S. Nolas, 'Controllable Synthesis of Bismuth Chalcogenide Core-shell Nanorods', Cryst. Growth Des. 14, 533 (2014).

Y. Dong, H. Wang, and G. S. Nolas, 'Synthesis and thermoelectric properties of Cu excess Cu2ZnSnSe4', Phys. Status Solidi RRL 8, 61 (2014).

Y. Dong, P. Puneet, T. M. Tritt, and G. S. Nolas, 'Crystal structure and high temperature transport properties of Yb-filled p-type skutterudites YbxCo2.5Fe1.5Sb12', J. Solid State Chem. 209, 1 (2014).

Y. Dong, H. Wang, and G. S. Nolas, 'Synthesis, Crystal Structure, and High Temperature Transport Properties of p-Type Cu2Zn1–xFexSnSe4', Inorg. Chem. 52, 14364 (2013).

Z. Ge, K. Wei, and G. S. Nolas, 'Synthesis and low-temperature transport properties of polycrystalline NiSe2', Phys. Status Solidi A 210, 2725 (2013).

A. D. Ritchie, M. B. Johnson, J. F. Niven, M. Beekman, G. S. Nolas, J. Gryko, and M. A. White,'Influence of guest loading on thermal properties of NaxSi136 clathrates', J. Phys. Cond. Matter 25, 435401 (2013).

S. Stefanoski, Y. Dong, and G. S. Nolas, 'Structural characterization and low-temperature physical properties of p-type single-crystal K8Ga8.5Sn37.5 grown by self-flux method', J. Solid State Chem. 204, 166 (2013).

Y. Dong, P. Puneet, T. M. Tritt, and G. S. Nolas, 'High-temperature thermoelectric properties of p-type skutterudites YbxCo3FeSb12', Phys. Status Solidi RRL 7, 418 (2013).

Y. Dong, K. Wei, and G. S. Nolas, 'Transport properties of partially filled skutterudite derivatives Ce0.13Co4Ge6Se6 and Yb0.14Co4Ge6Se6', Phys. Rev. B. 87, 195203 (2013).

M. C. Blosser and G. S. Nolas, 'Synthesis of Na8Si46 and Na24Si136 by oxidation of Na4Si4 from ionic liquid decomposition', Mater. Lett. 99, 161 (2013).

S. Stefanoski, M. C. Blosser, and G. S. Nolas, 'Pressure Effects on the Size of Type-I and Type-II Si-Clathrates Synthesized by Spark Plasma Sintering', Cryst. Growth Des. 13, 195 (2013).

A.N. Mansour, J. Martin, W. Wong-Ng, and G. S. Nolas, 'Electronic and atomic structure of Ba8Ga16Ge30-xSix type I clathrates: Ge and Ga XAFS study', J. Phys. Cond. Matter 24, 485503 (2012).

Y. Dong, P. Puneet, T. M. Tritt, J. Martin, and G. S. Nolas, 'High temperature thermoelectric properties of p-type skutterudites BaxYbyCo4-zFezSb12', J. Appl. Phys. 112, 083718 (2012).

S. Stefanoski, C. D. Malliakas, M. G. Kanatzidis, and G. S. Nolas, 'Synthesis and Structural Characterization of NaxSi136 (0 < x ≤ 24) Single Crystals and Low-Temperature Transport of Polycrystalline Specimens', Inorg. Chem. 51, 8686 (2012).

A. Popescu, L. M. Woods, and G. S. Nolas, 'Magnetic field and nanostructuring effects on the thermoelectric performance of bismuth', Phys. Rev. B. 85, 115202 (2012).

A. Datta and G. S. Nolas, 'Solution-Based Synthesis & Low-Temperature Transport properties of CsBi4Te6', ACS Appl. Mater. Interfaces 4, 772 (2012).

A. Datta and G. S. Nolas, 'Synthesis and Characterization of Nanoncrystalline FeSb2 for Thermoelectric Applications', Eur. J. Inorg. Chem., 55-58 (2012).

A. Chaturvedi, S.Stefanoski, M-H.Phan, G. S. Nolas, and H. Srikanth, 'Table-like magnetocaloric effect and enhanced refrigerant capacity in Eu8Ga16Ge30-EuO composite materials', Appl. Phys. Lett. 99, 162513 (2011).

S. Stefanoski and G. S. Nolas, 'Synthesis and Structural Characterization of Single-Crystal K7.5Si46 and K17.8Si136 Clathrates', Cryst. Growth Des. 11, 4533 (2011).

A. Popescu, A. Datta, G. S. Nolas, and L. M. Woods, 'Thermoelectric properties of Bi-doped PbTe composites', J. Appl. Phys. 109, 103709 (2011).

M.H. Phan, V. Franco, A. Chaturvedi, S. Stefanoski, G. S. Nolas, and H. Srikanth, 'Origin of the magnetic anomaly and tunneling effect of europium on the ferromagnetic ordering in Eu8-xSrxGa16Ge30 (x = 0,4) type-I clathrates', Physical Review B. 84, 054436 (2011).

S. Stefanoski, M. Beekman, W. Wong-Ng, P. Zavalij, and G. S. Nolas, 'Simple approach for selective crystal growth of intermetallic clathrates', Chem. Mater. 23, 1491 (2011).

A. Datta, and G. S. Nolas, 'Composition controlled synthesis of Bi rich Bi1-xSbx alloy nanocrystals by a low temperature polyol process', Cryst. Eng. Comm. 13, 2753 (2011).

S. Stefanoski, J. Martin and G. S. Nolas, 'Low temperature transport properties and heat capacity of single-crystal Na8Si46', J. Phys. Cond. Matter 22, 485404 (2010).

A. Datta, J. Paul, A. Kar, A. Patra, Z. Sun, L. Chen, J. Martin and G.S. Nolas, 'Facile chemical synthesis of nanocrystalline thermoelectric alloys based on Bi-Sb-Te-Se', Cryst. Growth Des. 10, 3983 (2010).

A. D. Ritchie, M. A. MacDonald, P. Zhang, M. A. White, M. Beekman, J. Gryko, and G. S. Nolas, 'X-ray absorption spectroscopy studies of local structure and electronic properties of NaxSi136 clathrates', Phys. Rev. B. 82, 155207 (2010).

M. Beekman, R.P. Hermann, A. Mochel, F. Juranyi and G.S. Nolas, 'A Study of low-energy Na phonon modes in clathrate-II NaxSi136 (x=3, 23 and 24)', J. Phys. Cond. Matter 22, 355401 (2010).

M. Beekman, E.N. Nenghabi, K. Biswas, C.W. Myles, M. Baitinger, Y. Grin and G.S. Nolas, 'Framework contraction in Na-stuffed Si(cF136)', Inorg. Chem. 49, 5338 (2010).

M. Beekman, S. Stefanoski, W. Wong-Ng, J.A. Kaduk, Q. Huang, C. Reeg, C.R. Bowers and G.S. Nolas, 'Structure and thermal conductivity of Na1-xGe3+z', J. Solid State Chem. 183, 1272 (2010).

M.H. Phan, V. Franco, A. Chaturvedi, S. Stefanoski, H. Kirby, G.S. Nolas and H. Srikanth, 'Magnetocaloric effect and refrigerant capacity in Sr-doped Eu8Ga16Ge30 type-I clathrates', J. Appl. Phys. 107, 09A910 (2010).

M. Beekman, J. Salvador, X. Shi, and G. S. Nolas, 'Characterization of Delafossite-Type CuCoO2 Prepared by Ion Exchange', J. of Alloys and Comp. 489, 336 (2010).

M. Beekman, W. Schnelle, H. Borrmann, M. Baitinger, Yu. Grin, and G. S. Nolas, 'Intrinsic Electrical and Thermal Properties od Single Crystals of Na24Si136', Phys. Rev. Lett. 104, 018301 (2010).

M. Beekman, M. Baitinger, H. Borrman, W. Schnelle, K. Meier, G. S. Nolas and Y. Grin, 'Preparation and crystal growth of Na24Si136', J. Am. Chem. Soc., 131, 9642 (2009).

Z. Q. J. Lu, N. D. Lowhorn, T. N. Tran, J. Martin, G. S. Nolas et al., 'Statistical Analysis of a Round-Robin Measurement Survey of Two Candidate Materials for a Seebeck Coefficient Standard Reference Material,' J. Res. Natl. Inst Stand. Technol., 114, 37 (2009).

N. D. Lowhorn, W. Wong-Ng, J. Martin, G. S. Nolas et al., 'Round Robin Measurements of Two Candidate Materials for a Seebeck Coefficient Standard Reference Material,' Appl. Phys. A, 94, 231 (2009).

M. R. Dirmyer, J. Martin, G. S. Nolas, A. Sen and J. V. Badding, 'Thermal and Electrical Conductivity of Size-Tuned Bismuth Telluride Nanoparticles,' Small, 5, 933 (2009).

A. Popescu, L. M. Woods, J. Martin and G. S. Nolas, 'Model of Transport Properties of Thermoelectric Nanocomposite Materials,' Phys. Rev. B, 79, 205302 (2009).

J. Martin, Li Wang, Lidong Chen and G. S. Nolas, 'Enhanced Seebeck Coefficient Through Energy-Barrier Scattering in PbTe nanocomposites,' Phys. Rev. B 79, 115311 (2009).

M. Beekman, J.A. Kaduk, J. Gryko, W. Wong-Ng and G. S. Nolas, 'Synthesis and Characterization of Framework-Substituted Cs8Na16Cu5Ge131 Type II Clathrate,'J. of Alloys and Comp. 470, 365 (2009).

A. N. Mansour, M. Beekman, W. Wong-Ng and G. S. Nolas, 'Local Structure of Cu in Cs8Na16Cu5Ge131 Type II Clathrate,' J. of Solid State Chem. 182, 107 (2009).

M. H. Phan, G. T. Woods, A. Cahturvedi, S. Stefanoski, G. S. Nolas and H. Sirkanth, 'Long-Range Ferromagnetism and Giant Magnetocalloric Effect in Type VIII Eu8Ga16Ge30 Clathrates,' Appl. Phys. Lett. 93, 252505 (2008).

K. Biswas, C. W. Myles, M. Sanati and G.S. Nolas, 'Thermal Properties of Guest-free Si136 and Ge136 Clathrates: A First Principles Study, 'J. Appl. Phys. 104, 033535 (2008).

J. Martin, H. Wang and G. S. Nolas, 'Optimization of the Thermoelectric Properties of Ba8Ga16Ge30,' Appl. Phys. Lett. 92, 222110 (2008).

M. Beekman and G.S. Nolas, 'Inorganic clathrate-II materials of group 14: synthetic routes and physical properties,' J. Mater. Chem. 18, 842 (2008).

Q. Lin, A.L. Smalley, D.C. Johnson, J. Martin, and G.S. Nolas, 'Synthesis and Properties of CexCo4Ge6Se6,' Chem. Mater. 19, 6615 (2007).

G.S. Nolas, D. Wang, and M. Beekman, 'Transport properties of polycrystalline Mg2Si1-ySby (0 < y < 0.4),' Phys. Rev. B 76, 235204 (2007).

J. Martin, G.S. Nolas, H. Wang, and J. Yang, 'Thermoelectric properties of silicon-germanium type I clathrates,' J. Appl. Phys. 102, 103719 (2007).

J. Yang, G.P. Meisner, C.J. Rawn, H. Wang, B.C. Chakoumakos, J. Martin, G.S. Nolas, B.L. Pedersen, and J.K. Stalick, 'Low temperature transport and structural properties of misch-metal-filled skutterudites,' J. Appl. Phys. 102, 83702 (2007).

T. Mori, J. Martin, and G.S. Nolas, 'Thermal Conductivity of YbB44Si2,' J. Appl. Phys. 102, 073510 (2007).

G.S. Nolas, D. Wang, and X. Lin,'Synthesis and low temperature transport properties of Mg2Ge1-ySby,' Phys. Stat. Sol.(RRL) 1, 223 (2007).

M. Beekman and G.S. Nolas, 'Transport Properties of the Binary Type I Clathrate K8Ge44,' Int. J. Appl. Ceram. Technol. 4, 332 (2007).

J. Martin, G.S. Nolas, W. Zhang, and L. Chen, 'PbTe nanocomposites synthesized from PbTe nanocrystals,' Appl. Phys. Lett. 90, 222112 (2007).

C.L. Condron, S.M. Kauzlarich, and G.S. Nolas, 'Structure and Thermoelectric Characterization of AxBa8-xAl14Si31 (A = Sr, Eu) Single Crystals,' Inorg. Chem. 46, 2556 (2007).

M. Beekman, J.A. Kaduk, Q. Huang, W. Wong-Ng, W. Yang, D. Wang, and G.S. Nolas, 'Synthesis and crystal structure of Na1-xGe3+z: A novel zeolite-like framework phase in the Na-Ge system,' Chem. Commun. 837 (2007).

M. Beekman, W. Wong-Ng, J.A. Kaduk, A. Shapiro, and G.S. Nolas, 'Synthesis and single-crystal X-ray diffraction studies of new framework substituted type II clathrates, Cs8Na16AgxGe136-x (x < 7),' J. Solid State Chem. 180, 1086 (2007).

C.L. Condron, J. Martin, G.S. Nolas, P.M.B. Piccoli, A.J. Schultz, and S.M. Kauzlarich, 'Structure and Thermoelectric Characterization of Ba8Al14Si31,' Inorg. Chem. 45, 9381 (2006).

G.S. Nolas, G. Fowler, and J. Yang, 'Assessing the role of filler atoms on the thermal conductivity of filled skutterudites,' J. Appl. Phys. 100, 043705 (2006).

M. Beekman and G.S. Nolas, 'Synthesis and thermal conductivity of type II silicon clathrates,' Physica B 383, 111 (2006).

G.S. Nolas, M. Beekman, R.W. Ertenberg, and J. Yang, 'Low temperature transport properties of Ni-doped CoGe1.5Se1.5,' J. Appl. Phys. 100, 036101 (2006).

R.P. Hermann, V. Keppens, P. Bonville, G.S. Nolas, F. Grandjean, G.J. Long, H.M. Christen, B.C. Chakoumakos, B.C. Sales, and D. Mandrus, 'Direct Experimental Evidence for Atomic Tunneling of Europium in Crystalline Eu8Ga16Ge30,' Phys. Rev. Lett. 97, 017401 (2006).

S. Srinath, J. Gass, D.J. Rebar, G.T. Woods, H. Srikanth, and G.S. Nolas, 'Giant magnetocaloric effect in clathrates,' J. Appl. Phys. 99, 08K902 (2006).

G.T. Woods, J. Martin, M. Beekman, R.P. Hermann, F. Granjean, V. Keppens, O. Leupold, G.J. Long, and G.S. Nolas, 'Magnetic and electronic properties of Eu4Sr4Ga16Ge30,' Phys. Rev. B 73, 174403 (2006).

J. Martin, S. Erickson, G.S. Nolas, P. Alboni, T.M. Tritt, and J. Yang, 'Structural and transport properties of Ba8Ga16SixGe46-x clathrates,' J. Appl. Phys. 99, 044903 (2006).

G.S. Nolas and G. Fowler, 'Partial filling of skutterudites: Optimization for thermoelectric applications,' J. Mater. Res. 20, 3234 (2005).

R.P. Hermann, W. Schweika, O. Leopold, R. Ruffer, G.S. Nolas, F. Grandjean, and G.J. Long, 'Neutron and nuclear inelastic scattering study of the Einstein oscillators in Ba-, Sr-, and Eu-filled germanium clathrates,' Phys. Rev. B 72, 174301 (2005).

G.A. Lamberton, Jr., R.H. Tedstrom, T.M. Tritt, and G.S. Nolas, 'Thermoelectric properties of Yb-filled Ge-compensated CoSb3 skutterudite materials,' J. Appl. Phys. 97, 113715 (2005).

W. Gou, Y. Li, J. Chi, J.H. Ross, Jr., M. Beekman, and G.S. Nolas, 'NMR study of slow atomic motion in Sr8Ga16Ge30 clathrate,' Phys. Rev. B 71, 174307 (2005).

J. Gryko, R.F. Marzke, G.A. Lamberton, Jr., T.M. Tritt, M. Beekman, and G.S. Nolas, 'Electron structure and temperature-dependant shifts in 133Cs NMR spectra of the Cs8Ge136 clathrate, Phys. Rev. B 71, 115208 (2005).

G.S. Nolas, G. Yoon, H. Sellinschegg, A. Smalley, and D.C. Johnson, 'Synthesis and transport propeties of HfFe4Sb14,' Appl. Phys. Lett. 86, 042111 (2005).

G.S. Nolas, J.L. Cohn, J.S. Dyck, C. Uher, G.A. Lamberton, Jr. and T.M. Tritt, ' Low-temperature transport properties of polycrystalline Ba8Ga16Sn30,' J. Mater. Res. 19, 3556 (2004).

F. Chen, J. Shulman, Y. Xue, C.W. Chu, and G.S. Nolas, 'Thermal conductivity measurement under hydrostatic pressure using the 3ω method,' Rev. Sci. Intsr. 75, 4578 (2004).

L. Qiu, I.P. Swainson, G.S. Nolas, M.A. White, 'Structure, thermal, and transport properties of the clahtrates Sr8Zn8Ge38, Sr8Ga16Ge30, Ba8Ga16Ge30,' Phys. Rev. B 70, 035208 (2004).

G.S. Nolas, J. Yang, H. Takizawa, 'Transport properties of germanium-filled CoSb3', Appl. Phys. Lett. 84, 5210 (2004).

J.A. Kaduk, W. Wong-Ng, and G.S. Nolas, 'X-ray diffraction patterns of two semiconducting clathrates, Sr8Ga16Ge30, and Cs8Na16Ge136: Promising candidates for thermoelectric applications', The Rigaku Journal 20, 2 (2003).

G.S. Nolas, C.A. Kendziora, H. Takizawa, 'Polarized Raman-scattering study of Ge and Sn-filled CoSb3', J. of Appl. Phys. 94, 7440 (2003).

G.S. Nolas, J. Yang, and R. Ertenberg, 'Transport properties of CoGe1.5Se1.5', Phys. Rev. B 68, 193206 (2003).

Y. Zhang, A.P. Wilkinson, G.S. Nolas, P.L. Lee, and J.P. Hodges, 'Strategies for solving neighboring-element problems: a case study using resonant X-ray diffraction and pulsed neutron diffraction to examine Sr8Ga16Ge30', J. Appl. Cryst. 36, 1182 (2003).

G.S. Nolas, M. Beekman, J. Gryko, G.A. Lamberton, Jr., T.M. Tritt, and P.F. McMillan, 'Thermal conductivity of crystalline silcon clathrate Si136', Appl. Phys. Lett. 82, 910 (2003).

G.S. Nolas, C.A. Kendziora, J. Gryko, J. Dong, A. Poddar, C.W. Myles and O.F. Sakey, 'Raman scattering study of stoichiometric Si and Ge type II clathrates', J. Appl. Phys. 92, 7225 (2002).

G.S. Nolas and H. J. Goldsmid, 'The Figure of Merit in Amorphous Thermoelectrics', Phys. Stat. Sol. (a) 194, 271 (2002).

C.W. Myles, J. Dong, O.F. Sankey, C.A. Kendziora and G.S. Nolas, 'Vibrational properties of tin clathrate materials', Phys. Rev. B 65, 235208 (2002).

Y. Zhang, P.L. Lee, G.S. Nolas, and A.P. Wilkinson, 'Gallium distribution in the clathrate Sr8Ga16Ge30 and Sr4Eu4Ga16Ge30 by resonant diffraction', Appl. Phys. Lett. 80, 2931 (2002).

G.S. Nolas, D.G. Vanderveer, A.P. Wilkinson and J.L. Cohn, 'Temperature Dependent structural and transport properties of the type II clathrates A8Na16E136 (A = Cs or Rb and E = Ge or Si)', J. Appl. Phys. 91, 8970 (2002).

A.P. Wilkinson, C. Lind, R.A. Young, S.D. Shastri, P.L. Lee and G.S. Nolas, 'Preparation, transport properties and structure analysis by resonant x-ray scattering of the type-I clathrate Cs8Cd4Sn42', Chem. Mater. 14, 1300 (2002).

G.S. Nolas, J.L. Cohn, J. Dyck, C. Uher and J. Yang, 'Transport properties of Sn-clathrates', Phys. Rev. B 65, 165201 (2002).

F. Chen, K.L. Stokes, G.S. Nolas, 'Thermoelectric Properties of Tin Clathrates under Hydrostatic Pressure', J. Phys. Chem. Solids 63, 827 (2002).

G.A. Lamberton, Jr., S. Bhattacharya, R.T. Littleton IV, T.M. Tritt and G.S. Nolas, 'High figure of merit in Eu-filled CoSb3 skutterudites', Appl. Phys. Lett. 80, 598 (2002).

G.S. Nolas, J.-M. Ward, J. Gryko, L. Qiu, and M.A. White, 'Transport properties of Na8Si46', Phys. Rev. B 64, 153201 (2001).

G.S. Nolas and G.A. Slack, 'Thermoelectric Clathrates', American Scientist 89, 136 (2001).

R. Patschke, X. Zhang, D. Singh, J. Schindler, C.R. Kannewurf, N. Lowhorn, T.M. Tritt, G.S. Nolas and M.G. Kanatzidis, 'Thermoelectric properties and electronic structure of the cage compounds A2BaCu8Te10 (A=K, Rb, Cs) systems with low thermal conductivity', Chem. Mater. 13, 613 (2001).

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