Peak Effect in CeRu2: Role of Crystalline Defects

Masato Hedo; Yoshihiko Kobayashi; Yoshihiko Inada; Etsuji Yamamoto; Yoshinori Haga; Jun Ichi Suzuki; Naoto Metoki; Yoshichika Onuki; Hitoshi Sugawara; Hideyuki Sato; Kenichi Tenya; Takashi Tayama; Hiroshi Amitsuka; Toshiro Sakakibara

doi:10.1143/JPSJ.67.3561

Peak Effect in CeRu₂: Role of Crystalline Defects

Masato Hedo^*, Yoshihiko Kobayashi, Yoshihiko Inada, Etsuji Yamamoto, Yoshinori Haga, Jun Ichi Suzuki, Naoto Metoki, Yoshichika Onuki, Hitoshi Sugawara, Hideyuki Sato, Kenichi Tenya, Takashi Tayama, Hiroshi Amitsuka, Toshiro Sakakibara

^*この論文の責任著者

物理学科

研究成果: ジャーナルへの寄稿 › 学術論文 › 査読

12 被引用数 (Scopus)

抄録

We measured the electrical resistivity in magnetic fields and the Hall voltage to understand the peak effect in a superconductor with the cubic structure CeRu₂. Two samples with residual resistivity ratios of ρ_RT/ρ₀ = 240 and 12 were prepared, and the experimental results in the superconducting mixed state were compared between them. The flux flow begins at a high field and the peak effect is observed in a very narrow window in the T vs. H phase diagram near the upper critical field H_c2 for the sample with ρ_RT/ρ₀ = 240, while it starts at a lower field and the window where the peak effect is observed becomes wider for the sample with ρRT/ρ₀ = 12. These characteristic features are mainly related to crystalline defects in the sample.

本文言語	英語
ページ（範囲）	3561-3569
ページ数	9
ジャーナル	Journal of the Physical Society of Japan
巻	67
号	10
DOI	https://doi.org/10.1143/JPSJ.67.3561
出版ステータス	出版済み - 1998/10

ASJC Scopus 主題領域

物理学および天文学一般

文献へのアクセス

10.1143/JPSJ.67.3561

引用スタイル

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title = "Peak Effect in CeRu2: Role of Crystalline Defects",

abstract = "We measured the electrical resistivity in magnetic fields and the Hall voltage to understand the peak effect in a superconductor with the cubic structure CeRu2. Two samples with residual resistivity ratios of ρRT/ρ0 = 240 and 12 were prepared, and the experimental results in the superconducting mixed state were compared between them. The flux flow begins at a high field and the peak effect is observed in a very narrow window in the T vs. H phase diagram near the upper critical field Hc2 for the sample with ρRT/ρ0 = 240, while it starts at a lower field and the window where the peak effect is observed becomes wider for the sample with ρRT/ρ0 = 12. These characteristic features are mainly related to crystalline defects in the sample.",

keywords = "CeRu, Flux flow, GFFLO, Peak effect",

author = "Masato Hedo and Yoshihiko Kobayashi and Yoshihiko Inada and Etsuji Yamamoto and Yoshinori Haga and Suzuki, {Jun Ichi} and Naoto Metoki and Yoshichika Onuki and Hitoshi Sugawara and Hideyuki Sato and Kenichi Tenya and Takashi Tayama and Hiroshi Amitsuka and Toshiro Sakakibara",

year = "1998",

month = oct,

doi = "10.1143/JPSJ.67.3561",

language = "英語",

volume = "67",

pages = "3561--3569",

journal = "Journal of the Physical Society of Japan",

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TY - JOUR

T1 - Peak Effect in CeRu2

T2 - Role of Crystalline Defects

AU - Hedo, Masato

AU - Kobayashi, Yoshihiko

AU - Inada, Yoshihiko

AU - Yamamoto, Etsuji

AU - Haga, Yoshinori

AU - Suzuki, Jun Ichi

AU - Metoki, Naoto

AU - Onuki, Yoshichika

AU - Sugawara, Hitoshi

AU - Sato, Hideyuki

AU - Tenya, Kenichi

AU - Tayama, Takashi

AU - Amitsuka, Hiroshi

AU - Sakakibara, Toshiro

PY - 1998/10

Y1 - 1998/10

N2 - We measured the electrical resistivity in magnetic fields and the Hall voltage to understand the peak effect in a superconductor with the cubic structure CeRu2. Two samples with residual resistivity ratios of ρRT/ρ0 = 240 and 12 were prepared, and the experimental results in the superconducting mixed state were compared between them. The flux flow begins at a high field and the peak effect is observed in a very narrow window in the T vs. H phase diagram near the upper critical field Hc2 for the sample with ρRT/ρ0 = 240, while it starts at a lower field and the window where the peak effect is observed becomes wider for the sample with ρRT/ρ0 = 12. These characteristic features are mainly related to crystalline defects in the sample.

AB - We measured the electrical resistivity in magnetic fields and the Hall voltage to understand the peak effect in a superconductor with the cubic structure CeRu2. Two samples with residual resistivity ratios of ρRT/ρ0 = 240 and 12 were prepared, and the experimental results in the superconducting mixed state were compared between them. The flux flow begins at a high field and the peak effect is observed in a very narrow window in the T vs. H phase diagram near the upper critical field Hc2 for the sample with ρRT/ρ0 = 240, while it starts at a lower field and the window where the peak effect is observed becomes wider for the sample with ρRT/ρ0 = 12. These characteristic features are mainly related to crystalline defects in the sample.

KW - CeRu

KW - Flux flow

KW - GFFLO

KW - Peak effect

UR - http://www.scopus.com/inward/record.url?scp=0032257305&partnerID=8YFLogxK

U2 - 10.1143/JPSJ.67.3561

DO - 10.1143/JPSJ.67.3561

M3 - 学術論文

AN - SCOPUS:0032257305

SN - 0031-9015

VL - 67

SP - 3561

EP - 3569

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

IS - 10

ER -

Peak Effect in CeRu2: Role of Crystalline Defects

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Peak Effect in CeRu₂: Role of Crystalline Defects