De Haas-van Alphen Effect and Energy Band Structure in UB2

Etsuji Yamamoto; Yoshinori Haga; Tetsuo Honma; Yoshihiko Inada; Dai Aoki; Masato Hedo; Yoshiyuki Yoshida; Hiroshi Yamagami; Yoshichika Onuki

doi:10.1143/JPSJ.67.3171

De Haas-van Alphen Effect and Energy Band Structure in UB₂

Etsuji Yamamoto, Yoshinori Haga, Tetsuo Honma, Yoshihiko Inada, Dai Aoki, Masato Hedo, Yoshiyuki Yoshida, Hiroshi Yamagami, Yoshichika Onuki

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

We grew a single crystal of UB₂ with the hexagonal structure and observed the de Haas-van Alphen (dHvA) oscillation. All of the dHvA branches, which are about seven in number, are detected in the limited angle regions. They are well explained by the 5f-itinerant relativistic band theory with an exchange and correlation potential in a local density approximation. Namely, UB₂ is a compensated metal with an equal number of electron and hole. The Fermi surface consists of two closed but corrugated Fermi surfaces. The cyclotron masses are moderately heavy, ranging from 1.2 to 7.7m₀.

Original language	English
Pages (from-to)	3171-3175
Number of pages	5
Journal	journal of the physical society of japan
Volume	67
Issue number	9
DOIs	https://doi.org/10.1143/JPSJ.67.3171
Publication status	Published - Sep 1998
Externally published	Yes

Keywords

Energy band structure
Fermi surface
UB
dHvA

ASJC Scopus subject areas

Physics and Astronomy(all)

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abstract = "We grew a single crystal of UB2 with the hexagonal structure and observed the de Haas-van Alphen (dHvA) oscillation. All of the dHvA branches, which are about seven in number, are detected in the limited angle regions. They are well explained by the 5f-itinerant relativistic band theory with an exchange and correlation potential in a local density approximation. Namely, UB2 is a compensated metal with an equal number of electron and hole. The Fermi surface consists of two closed but corrugated Fermi surfaces. The cyclotron masses are moderately heavy, ranging from 1.2 to 7.7m0.",

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AU - Yamamoto, Etsuji

AU - Haga, Yoshinori

AU - Honma, Tetsuo

AU - Inada, Yoshihiko

AU - Aoki, Dai

AU - Hedo, Masato

AU - Yoshida, Yoshiyuki

AU - Yamagami, Hiroshi

AU - Onuki, Yoshichika

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AB - We grew a single crystal of UB2 with the hexagonal structure and observed the de Haas-van Alphen (dHvA) oscillation. All of the dHvA branches, which are about seven in number, are detected in the limited angle regions. They are well explained by the 5f-itinerant relativistic band theory with an exchange and correlation potential in a local density approximation. Namely, UB2 is a compensated metal with an equal number of electron and hole. The Fermi surface consists of two closed but corrugated Fermi surfaces. The cyclotron masses are moderately heavy, ranging from 1.2 to 7.7m0.

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