Quasi-two dimensional electronic state of the antiferromagnet UPtGa 5

Shugo Ikeda; Yoshihumi Tokiwa; Yoshinori Haga; Etsuji Yamamoto; Tomoyuki Okubo; Mineko Yamada; Noriko Nakamura; Kiyohiro Sugiyama; Kouichi Kindo; Yoshihiko Inada; Hiroshi Yamagami; Yoshichika Onuki

doi:10.1143/JPSJ.72.576

Quasi-two dimensional electronic state of the antiferromagnet UPtGa ₅

Shugo Ikeda, Yoshihumi Tokiwa, Yoshinori Haga, Etsuji Yamamoto, Tomoyuki Okubo, Mineko Yamada, Noriko Nakamura, Kiyohiro Sugiyama, Kouichi Kindo, Yoshihiko Inada, Hiroshi Yamagami, Yoshichika Onuki

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

41 Citations (Scopus)

Abstract

We have carried out the de Haas-van Alphen (dHvA) experiment to clarify the Fermi surface property of an antiferromagnet UPtGa₅, and have constructed the magnetic phase diagram from the high-field magnetization measurement. From the dHvA experiment, the Fermi surface is found to consist of four kinds of nearly cylindrical Fermi surfaces along the tetragonal [001] direction, which are approximately explained by the result of the spin-polarized energy band calculations based on the antiferromagnetic structure with a sequence of (↑ ↓) along [001]. Relatively large cyclotron masses are detected for carriers of the corresponding Fermi surfaces, ranging from 10 to 24 m₀ (m₀: rest mass of an electron). 5 f electrons are thus concluded to be itinerant and also to contribute to the magnetic moment at the uranium sites.

Original language	English
Pages (from-to)	576-581
Number of pages	6
Journal	journal of the physical society of japan
Volume	72
Issue number	3
DOIs	https://doi.org/10.1143/JPSJ.72.576
Publication status	Published - Mar 2003
Externally published	Yes

Keywords

Band calculation
UPtGa
dHvA

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.72.576

Cite this

@article{9a8c155a8bf0405e819dc07c9176a204,

title = "Quasi-two dimensional electronic state of the antiferromagnet UPtGa 5",

abstract = "We have carried out the de Haas-van Alphen (dHvA) experiment to clarify the Fermi surface property of an antiferromagnet UPtGa5, and have constructed the magnetic phase diagram from the high-field magnetization measurement. From the dHvA experiment, the Fermi surface is found to consist of four kinds of nearly cylindrical Fermi surfaces along the tetragonal [001] direction, which are approximately explained by the result of the spin-polarized energy band calculations based on the antiferromagnetic structure with a sequence of (↑ ↓) along [001]. Relatively large cyclotron masses are detected for carriers of the corresponding Fermi surfaces, ranging from 10 to 24 m0 (m0: rest mass of an electron). 5 f electrons are thus concluded to be itinerant and also to contribute to the magnetic moment at the uranium sites.",

keywords = "Band calculation, UPtGa, dHvA",

author = "Shugo Ikeda and Yoshihumi Tokiwa and Yoshinori Haga and Etsuji Yamamoto and Tomoyuki Okubo and Mineko Yamada and Noriko Nakamura and Kiyohiro Sugiyama and Kouichi Kindo and Yoshihiko Inada and Hiroshi Yamagami and Yoshichika Onuki",

year = "2003",

month = mar,

doi = "10.1143/JPSJ.72.576",

language = "English",

volume = "72",

pages = "576--581",

journal = "journal of the physical society of japan",

issn = "0031-9015",

publisher = "Physical Society of Japan",

number = "3",

}

TY - JOUR

T1 - Quasi-two dimensional electronic state of the antiferromagnet UPtGa 5

AU - Ikeda, Shugo

AU - Tokiwa, Yoshihumi

AU - Haga, Yoshinori

AU - Yamamoto, Etsuji

AU - Okubo, Tomoyuki

AU - Yamada, Mineko

AU - Nakamura, Noriko

AU - Sugiyama, Kiyohiro

AU - Kindo, Kouichi

AU - Inada, Yoshihiko

AU - Yamagami, Hiroshi

AU - Onuki, Yoshichika

PY - 2003/3

Y1 - 2003/3

N2 - We have carried out the de Haas-van Alphen (dHvA) experiment to clarify the Fermi surface property of an antiferromagnet UPtGa5, and have constructed the magnetic phase diagram from the high-field magnetization measurement. From the dHvA experiment, the Fermi surface is found to consist of four kinds of nearly cylindrical Fermi surfaces along the tetragonal [001] direction, which are approximately explained by the result of the spin-polarized energy band calculations based on the antiferromagnetic structure with a sequence of (↑ ↓) along [001]. Relatively large cyclotron masses are detected for carriers of the corresponding Fermi surfaces, ranging from 10 to 24 m0 (m0: rest mass of an electron). 5 f electrons are thus concluded to be itinerant and also to contribute to the magnetic moment at the uranium sites.

AB - We have carried out the de Haas-van Alphen (dHvA) experiment to clarify the Fermi surface property of an antiferromagnet UPtGa5, and have constructed the magnetic phase diagram from the high-field magnetization measurement. From the dHvA experiment, the Fermi surface is found to consist of four kinds of nearly cylindrical Fermi surfaces along the tetragonal [001] direction, which are approximately explained by the result of the spin-polarized energy band calculations based on the antiferromagnetic structure with a sequence of (↑ ↓) along [001]. Relatively large cyclotron masses are detected for carriers of the corresponding Fermi surfaces, ranging from 10 to 24 m0 (m0: rest mass of an electron). 5 f electrons are thus concluded to be itinerant and also to contribute to the magnetic moment at the uranium sites.

KW - Band calculation

KW - UPtGa

KW - dHvA

UR - http://www.scopus.com/inward/record.url?scp=0038035705&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0038035705&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.72.576

DO - 10.1143/JPSJ.72.576

M3 - Article

AN - SCOPUS:0038035705

SN - 0031-9015

VL - 72

SP - 576

EP - 581

JO - journal of the physical society of japan

JF - journal of the physical society of japan

IS - 3

ER -