De Haas-van Alphen effect and Fermi surfaces in UC

Etsuji Yamamoto; Yoshinori Haga; Yoshihiko Inada; Masao Murakawa; Yoshichika Onuki; Takahiro Maehira; Akira Hasegawa

doi:10.1143/JPSJ.68.3953

De Haas-van Alphen effect and Fermi surfaces in UC

Etsuji Yamamoto, Yoshinori Haga, Yoshihiko Inada, Masao Murakawa, Yoshichika Onuki, Takahiro Maehira, Akira Hasegawa

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

8 Citations (Scopus)

Abstract

We grew a high-quality single crystal of UC and carried out the de Haas-van Alphen(dHvA) experiments. The Fermi surfaces of a semimetal UC were confirmed to consist of three ellipsoidal hole-Fermi surfaces centered at the X points and six cushion-like electron-Fermi surfaces centered at the W points in the fcc Brillouin zone. These Fermi surface properties are based on the combined results of dHvA experiments and SRAPW-energy band calculations. The hole and electron Fermi surfaces mainly originate from the C 2p valence band and the U 5f conduction band, respectively. The cyclotron mass of the hole is light, being a rest mass of an electron m₀, while the mass of the electron is heavy, being in the range from 4.0 to 15 m₀. The mass enhancement is large for the electron Fermi surface, originated from the U 5f character.

Original language	English
Pages (from-to)	3953-3959
Number of pages	7
Journal	journal of the physical society of japan
Volume	68
Issue number	12
DOIs	https://doi.org/10.1143/JPSJ.68.3953
Publication status	Published - Dec 1999
Externally published	Yes

Keywords

Energy band structure
Fermi surface
UC
dHvA

ASJC Scopus subject areas

Physics and Astronomy(all)

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title = "De Haas-van Alphen effect and Fermi surfaces in UC",

abstract = "We grew a high-quality single crystal of UC and carried out the de Haas-van Alphen(dHvA) experiments. The Fermi surfaces of a semimetal UC were confirmed to consist of three ellipsoidal hole-Fermi surfaces centered at the X points and six cushion-like electron-Fermi surfaces centered at the W points in the fcc Brillouin zone. These Fermi surface properties are based on the combined results of dHvA experiments and SRAPW-energy band calculations. The hole and electron Fermi surfaces mainly originate from the C 2p valence band and the U 5f conduction band, respectively. The cyclotron mass of the hole is light, being a rest mass of an electron m0, while the mass of the electron is heavy, being in the range from 4.0 to 15 m0. The mass enhancement is large for the electron Fermi surface, originated from the U 5f character.",

keywords = "Energy band structure, Fermi surface, UC, dHvA",

author = "Etsuji Yamamoto and Yoshinori Haga and Yoshihiko Inada and Masao Murakawa and Yoshichika Onuki and Takahiro Maehira and Akira Hasegawa",

note = "Funding Information: This work was supported financially by the Grant-in-Aid for COE Research (10CE2004) from the Ministry of Education, Science, Sports and Culture.",

year = "1999",

month = dec,

doi = "10.1143/JPSJ.68.3953",

language = "English",

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AU - Yamamoto, Etsuji

AU - Haga, Yoshinori

AU - Inada, Yoshihiko

AU - Murakawa, Masao

AU - Onuki, Yoshichika

AU - Maehira, Takahiro

AU - Hasegawa, Akira

N1 - Funding Information: This work was supported financially by the Grant-in-Aid for COE Research (10CE2004) from the Ministry of Education, Science, Sports and Culture.

PY - 1999/12

Y1 - 1999/12

N2 - We grew a high-quality single crystal of UC and carried out the de Haas-van Alphen(dHvA) experiments. The Fermi surfaces of a semimetal UC were confirmed to consist of three ellipsoidal hole-Fermi surfaces centered at the X points and six cushion-like electron-Fermi surfaces centered at the W points in the fcc Brillouin zone. These Fermi surface properties are based on the combined results of dHvA experiments and SRAPW-energy band calculations. The hole and electron Fermi surfaces mainly originate from the C 2p valence band and the U 5f conduction band, respectively. The cyclotron mass of the hole is light, being a rest mass of an electron m0, while the mass of the electron is heavy, being in the range from 4.0 to 15 m0. The mass enhancement is large for the electron Fermi surface, originated from the U 5f character.

AB - We grew a high-quality single crystal of UC and carried out the de Haas-van Alphen(dHvA) experiments. The Fermi surfaces of a semimetal UC were confirmed to consist of three ellipsoidal hole-Fermi surfaces centered at the X points and six cushion-like electron-Fermi surfaces centered at the W points in the fcc Brillouin zone. These Fermi surface properties are based on the combined results of dHvA experiments and SRAPW-energy band calculations. The hole and electron Fermi surfaces mainly originate from the C 2p valence band and the U 5f conduction band, respectively. The cyclotron mass of the hole is light, being a rest mass of an electron m0, while the mass of the electron is heavy, being in the range from 4.0 to 15 m0. The mass enhancement is large for the electron Fermi surface, originated from the U 5f character.

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