Electronic Structure and the Fermi Surfaces of Antiferromagnetic NdB_6

元データ 1993-01-15 社団法人日本物理学会

概要

The energy-band structures of both paramagnetic (PR) and antiferromagnetic (AF) phases of NdB_6 are calculated by the Korringa-Kohn-Rostoker method within the local-density approximation. In the calculations, 4f-electrons are treated as partially filled core states. The band-structure in the AF phase is satisfactorily explained by a folding procedure of the PR counterpart. The Fermi surfaces in the AF phase consist of two sheets, a multiply-connected hole sheet and a multiply-connected electron one. These Fermi surfaces reasonably reproduce the measured frequency branches of the de Haas-van Alphen effect. From the comparison between the calculated and the observed cyclotron masses, it is pointed out that the mass enhancement due to the f-electrons is negligibly small.

著者

Kubo Y Nihon Univ. Tokyo
Kubo Yasunori College Of Humanities And Sciences Nihon University
Kubo Yasunori Department Of Physics College Of Arts And Sciences Nihon University
Harima Hisatomo College Of Integrated Arts And Science University Of Osaka Prefecture
Yanase Akira College Of Integrated Arts And Science University Of Osaka Prefecture
Asano Setsuro Institute For Solid State Physics The University Of Tokyo
Asano Setsuro Institute Of Physics College Of Arts And Sciences The University Of Tokyo
Yanase Akira College Of Integrated Arts And Sciences University Of Osaka Prefecture
KUBO Yasunori Department of Pharmacology, School of Pharmaceutical Sciences, Health Sciences University of Hokkaido

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