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Infrared evidence of a Slater metal-insulator transition in NaOsO3
Irene Lo Vecchio, Andrea Perucchi, Paola Di Pietro +6
The magnetically driven metal-insulator transition (MIT) was predicted by Slater in the fifties. Here a long-range antiferromagnetic (AF) order can open up a gap at the Brillouin e…
Soft and Isotropic Phonons in PrFeAsO_{1-y}
T. Fukuda, A. Q. R. Baron, H. Nakamura +9
Phonons in single crystals of PrFeAsO_{1-y} are investigated using high-resolution inelastic x-ray scattering and ab initio pseudopotential calculations. Extensive measurements of…
Continuous metal-insulator transition of the antiferromagnetic perovskite NaOsO3
Y. G. Shi, Y. F. Guo, S. Yu +11
Newly synthesized perovskite NaOsO3 shows Curie-Weiss metallic nature at high temperature and suddenly goes into an antiferromagnetically insulating state at 410 K on cooling. Elec…
NaV2O4: a Quasi-1D Metallic Antiferromagnet with Half-Metallic Chains
K. Yamaura, M. Arai, A. Sato +6
NaV2O4 crystals were grown under high pressure using a NaCl flux, and the crystals were characterized with X-ray diffraction, electrical resistivity, heat capacity, and magnetizati…
Electronic properties of the novel 4d metallic oxide SrRhO3
K. Yamaura, Q. Huang, D. P. Young +2
The novel 4d perovskite compound SrRhO3 was investigated by isovalent doping studies. The solubility limits of Ca and Ba onto Sr-site were below 80% and 20%, respectively. Although…