Localized states within the gap of Ce3Au3Sb4
作者： Han-Oh Lee , V.A. Sidorov , P. Schlottmann , Cathie Condron , Peter Klavins
DOI: 10.1016/J.PHYSB.2007.10.309
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摘要: Abstract The temperature dependence of the specific heat and resistivity under pressure has been measured for single crystals semiconductor Ce 3 Au Sb 4 . transport data follow an exponential activation variable range hopping at low T , consistent with weak disorder localization, while C / a - ln large entropy. Thus properties are very different from those ordinary Kondo insulators.
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M. F. Hundley, P. C. Canfield, J. D. Thompson, Z. Fisk, J. M. Lawrence, Hybridization gap in Ce3Bi4Pt3. Physical Review B. ,vol. 42, pp. 6842- 6845 ,(1990) , 10.1103/PHYSREVB.42.6842
A. Amato, R. Feyerherm, F.N. Gygax, A. Schenck, M. Kasaya, T. Suzuki, S. Takagi, A. Ochiai, μSR studies of low charge carrier density heavy-fermion systems Hyperfine Interactions. ,vol. 104, pp. 165- 170 ,(1997) , 10.1023/A:1012671608866
K. Katoh, M. Kasaya, Localized f-electron antiferromagnetism, heavy fermion behavior and mixed valence in Ce3Au3Sb4, Ce3Pt3Sb4 and related compounds Physica B: Condensed Matter. ,vol. 186-188, pp. 428- 430 ,(1993) , 10.1016/0921-4526(93)90594-V
N. F. MOTT, Metal-Insulator Transition Reviews of Modern Physics. ,vol. 40, pp. 677- 683 ,(1968) , 10.1103/REVMODPHYS.40.677
M. Kasaya, K. Katoh, K. Takegahara, Semiconducting properties of the isomorphous compounds, Ce3Au3Sb4 and Ce3Pt3Sb4 Solid State Communications. ,vol. 78, pp. 797- 800 ,(1991) , 10.1016/0038-1098(91)90623-4
J. W. Allen, Richard M. Martin, B. Batlogg, P. Wachter, Mixed valent SmB6 and gold‐SmS: Metals or insulators? Journal of Applied Physics. ,vol. 49, pp. 2078- 2083 ,(1978) , 10.1063/1.324745
Peter S. Riseborough, Heavy fermion semiconductors Advances in Physics. ,vol. 49, pp. 257- 320 ,(2000) , 10.1080/000187300243345
M. Kasaya, K. Katoh, M. Kohgi, T. Osakabe, N. Sato, Valence change and physical properties in semiconducting mixed-valent rare-earth compounds Physica B-condensed Matter. ,vol. 199, pp. 534- 538 ,(1994) , 10.1016/0921-4526(94)91896-1
Katsuhiko Takegahara, Yasunori Kaneta, Electronic Band Structures of f-Electron Ternary Compounds with an Energy Gap Progress of Theoretical Physics Supplement. ,vol. 108, pp. 55- 71 ,(1992) , 10.1143/PTPS.108.55
T. Takabatake, F. Teshima, H. Fujii, S. Nishigori, T. Suzuki, T. Fujita, Y. Yamaguchi, J. Sakurai, D. Jaccard, Formation of an anisotropic energy gap in the valence-fluctuating system of CeNiSn Physical Review B. ,vol. 41, pp. 9607- 9610 ,(1990) , 10.1103/PHYSREVB.41.9607