Field-history-dependent peak effect in the superconducting mixed state of CeRu2

K. Tenya; S. Yasunami; T. Tayama; H. Amitsuka; T. Sakakibara; M. Hedo; Y. Inada; Y. Haga; E. Yamamoto; Y. Onuki

doi:10.1016/S0921-4526(98)00819-9

Field-history-dependent peak effect in the superconducting mixed state of CeRu₂

K. Tenya, S. Yasunami, T. Tayama, H. Amitsuka, T. Sakakibara, M. Hedo, Y. Inada, Y. Haga, E. Yamamoto, Y. Onuki

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

3 Citations (Scopus)

Abstract

Detailed magnetization measurements of CeRu₂ single crystals with different purity are performed in order to clarify whether their peak effects are due to the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) transition. The onset field of the peak shifts to lower field side as the sample becomes impure. Regardless of the purity the Ginzburg-Landau parameter κ₂ continues to increase on cooling from T_c, indicating little paramagnetic suppression of the superconductivity. These results disagree with the scenario of the FFLO transition.

Original language	English
Pages (from-to)	692-693
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	259-261
DOIs	https://doi.org/10.1016/S0921-4526(98)00819-9
Publication status	Published - Jan 1 1999
Externally published	Yes

Keywords

Flux pinning
Magnetization measurement
Peak effect

ASJC Scopus subject areas

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

Access to Document

10.1016/S0921-4526(98)00819-9

Cite this

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title = "Field-history-dependent peak effect in the superconducting mixed state of CeRu2",

abstract = "Detailed magnetization measurements of CeRu2 single crystals with different purity are performed in order to clarify whether their peak effects are due to the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) transition. The onset field of the peak shifts to lower field side as the sample becomes impure. Regardless of the purity the Ginzburg-Landau parameter κ2 continues to increase on cooling from Tc, indicating little paramagnetic suppression of the superconductivity. These results disagree with the scenario of the FFLO transition.",

keywords = "Flux pinning, Magnetization measurement, Peak effect",

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T1 - Field-history-dependent peak effect in the superconducting mixed state of CeRu2

AU - Tenya, K.

AU - Yasunami, S.

AU - Tayama, T.

AU - Amitsuka, H.

AU - Sakakibara, T.

AU - Hedo, M.

AU - Inada, Y.

AU - Haga, Y.

AU - Yamamoto, E.

AU - Onuki, Y.

PY - 1999/1/1

Y1 - 1999/1/1

N2 - Detailed magnetization measurements of CeRu2 single crystals with different purity are performed in order to clarify whether their peak effects are due to the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) transition. The onset field of the peak shifts to lower field side as the sample becomes impure. Regardless of the purity the Ginzburg-Landau parameter κ2 continues to increase on cooling from Tc, indicating little paramagnetic suppression of the superconductivity. These results disagree with the scenario of the FFLO transition.

AB - Detailed magnetization measurements of CeRu2 single crystals with different purity are performed in order to clarify whether their peak effects are due to the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) transition. The onset field of the peak shifts to lower field side as the sample becomes impure. Regardless of the purity the Ginzburg-Landau parameter κ2 continues to increase on cooling from Tc, indicating little paramagnetic suppression of the superconductivity. These results disagree with the scenario of the FFLO transition.

KW - Flux pinning

KW - Magnetization measurement

KW - Peak effect

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