Magnetic-field effects on the pseudogap in CeRhAs

Shunsuke Yoshii; Koichi Kindo; Tetsuya Sasakawa; Toshiaki Suemitsu; Toshiro Takabatake

doi:10.1016/S0921-4526(02)02444-4

Magnetic-field effects on the pseudogap in CeRhAs

Shunsuke Yoshii, Koichi Kindo, Tetsuya Sasakawa, Toshiaki Suemitsu, Toshiro Takabatake

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

Abstract

The electrical resistivity and magnetization M(H) of single crystal CeRhAs, which is the so-called Kondo insulator, have been measured in magnetic field up to 55 T. At 1.3 K, the slopes of M(H b) and M(H∥c) decrease at around 16 and 13 T, respectively, while M(H∥a) increases monotonously. The longitudinal magnetoresistances along the b- and c-axes show characteristic structures partly associated with the anomaly of M(H), while it along the a-axis shows only a broad maximum. The transverse magnetoresistances for I/:b follow H^γ (γ = 1.5-1.7). These observations suggest the existence of a narrow and anisotropic structure within the wide pseudogap.

Original language	English
Pages (from-to)	568-569
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	329-333
Issue number	II
DOIs	https://doi.org/10.1016/S0921-4526(02)02444-4
Publication status	Published - 2003 May
Externally published	Yes

Keywords

CeRhAs
High magnetic field
Kondo insulator
Transport and magnetic properties

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering

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10.1016/S0921-4526(02)02444-4

Cite this

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title = "Magnetic-field effects on the pseudogap in CeRhAs",

abstract = "The electrical resistivity and magnetization M(H) of single crystal CeRhAs, which is the so-called Kondo insulator, have been measured in magnetic field up to 55 T. At 1.3 K, the slopes of M(H b) and M(H∥c) decrease at around 16 and 13 T, respectively, while M(H∥a) increases monotonously. The longitudinal magnetoresistances along the b- and c-axes show characteristic structures partly associated with the anomaly of M(H), while it along the a-axis shows only a broad maximum. The transverse magnetoresistances for I/:b follow Hγ (γ = 1.5-1.7). These observations suggest the existence of a narrow and anisotropic structure within the wide pseudogap.",

keywords = "CeRhAs, High magnetic field, Kondo insulator, Transport and magnetic properties",

author = "Shunsuke Yoshii and Koichi Kindo and Tetsuya Sasakawa and Toshiaki Suemitsu and Toshiro Takabatake",

note = "Funding Information: This study was supported in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology.",

year = "2003",

month = may,

doi = "10.1016/S0921-4526(02)02444-4",

language = "English",

volume = "329-333",

pages = "568--569",

journal = "Physica B: Condensed Matter",

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number = "II",

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TY - JOUR

T1 - Magnetic-field effects on the pseudogap in CeRhAs

AU - Yoshii, Shunsuke

AU - Kindo, Koichi

AU - Sasakawa, Tetsuya

AU - Suemitsu, Toshiaki

AU - Takabatake, Toshiro

N1 - Funding Information: This study was supported in part by a Grant-in-Aid for Scientific Research from the Ministry of Education, Culture, Sports, Science and Technology.

PY - 2003/5

Y1 - 2003/5

N2 - The electrical resistivity and magnetization M(H) of single crystal CeRhAs, which is the so-called Kondo insulator, have been measured in magnetic field up to 55 T. At 1.3 K, the slopes of M(H b) and M(H∥c) decrease at around 16 and 13 T, respectively, while M(H∥a) increases monotonously. The longitudinal magnetoresistances along the b- and c-axes show characteristic structures partly associated with the anomaly of M(H), while it along the a-axis shows only a broad maximum. The transverse magnetoresistances for I/:b follow Hγ (γ = 1.5-1.7). These observations suggest the existence of a narrow and anisotropic structure within the wide pseudogap.

AB - The electrical resistivity and magnetization M(H) of single crystal CeRhAs, which is the so-called Kondo insulator, have been measured in magnetic field up to 55 T. At 1.3 K, the slopes of M(H b) and M(H∥c) decrease at around 16 and 13 T, respectively, while M(H∥a) increases monotonously. The longitudinal magnetoresistances along the b- and c-axes show characteristic structures partly associated with the anomaly of M(H), while it along the a-axis shows only a broad maximum. The transverse magnetoresistances for I/:b follow Hγ (γ = 1.5-1.7). These observations suggest the existence of a narrow and anisotropic structure within the wide pseudogap.

KW - CeRhAs

KW - High magnetic field

KW - Kondo insulator

KW - Transport and magnetic properties

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U2 - 10.1016/S0921-4526(02)02444-4

DO - 10.1016/S0921-4526(02)02444-4

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VL - 329-333

SP - 568

EP - 569

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

SN - 0921-4526

IS - II

ER -

Magnetic-field effects on the pseudogap in CeRhAs

Abstract

Keywords

ASJC Scopus subject areas

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