Large Diamagnetism of AV2Al20 (A = Y and La)
arXiv:1211.0066 · doi:10.1143/JPSJ.81.123702
Abstract
We find anomalously large diamagnetic responses in the cage compounds AV2Al20 where A = Y and La, not A = Al0.3, Sc0.4, and Lu, despite the apparent similarities in crystal and electronic structures among these compounds. The magnetic susceptibilities of the Y and La compounds become -1.94 and -7.44 x 10-4 cm3 mol-1 at 10 K, respectively, the latter of which corresponds to approximately one-quarter of that of bismuth, a well-known diamagnetic material, in terms of unit volume. The origin is not clear but may be related to a specific evolution in the band structure, as the diamagnetic response increases with increasing lattice constant.
arXiv comment5 pages, 4 figures, 1 table; to pe published in J. Phys. Soc. Jpn
References in corpus (5)
- YSix closely related YbTZn (T = Fe, Co, Ru, Rh, Os, Ir) heavy fermion compounds with large local moment degeneracy
- Anomalous orbital magnetism in Dirac-electron systems: Role of pseudo-spin paramagnetism
- Superconductivity in the Ferroquadrupolar State in the Quadrupolar Kondo Lattice PrTiAl
- Interband Effects of Magnetic Field on Hall Effects for Dirac Electrons in Bismuth
- Superconductivity in an Einstein Solid AxV2Al20 (A = Al and Ga)