Reversible magnetization of Bi2Sr2CaCu2O8 single crystals at 30 K ≤ T < Tc

Qiang Li; K. Shibutani; M. Suenaga; I. Shigaki; R. Ogawa

doi:10.1016/0921-4526(94)91250-5

Reversible magnetization of Bi₂Sr₂CaCu₂O₈ single crystals at 30 K ≤ T < T_c

Qiang Li
, K. Shibutani
, M. Suenaga
, I. Shigaki
, R. Ogawa

Physics and Astronomy

Brookhaven National Laboratory
Kobe Steel, Ltd.

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

9 Scopus citations

Abstract

We report magnetization measurements on high-quality Bi₂Sr₂CaCu₂O₈ single crystals in H ∥ the c-axis. Our reversible magnetization data at 30 K ≤ T < T_c show strong deviations from the linear dependence of M on ln(H) in the intermediate-field region. The Ginzburg-Landau parameter κ, obtained by using the Hao-Clem variational model, was found to vary significantly with the field range for the data fitting. This unusual behavior can not be explained by the thermal fluctuations of the vortices in layered superconductors.

Original language	English
Pages (from-to)	1501-1502
Number of pages	2
Journal	Physica B: Condensed Matter
Volume	194-196
Issue number	PART 2
DOIs	https://doi.org/10.1016/0921-4526(94)91250-5
State	Published - Feb 2 1994

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title = "Reversible magnetization of Bi2Sr2CaCu2O8 single crystals at 30 K ≤ T < Tc",

abstract = "We report magnetization measurements on high-quality Bi2Sr2CaCu2O8 single crystals in H ∥ the c-axis. Our reversible magnetization data at 30 K ≤ T < Tc show strong deviations from the linear dependence of M on ln(H) in the intermediate-field region. The Ginzburg-Landau parameter κ, obtained by using the Hao-Clem variational model, was found to vary significantly with the field range for the data fitting. This unusual behavior can not be explained by the thermal fluctuations of the vortices in layered superconductors.",

author = "Qiang Li and K. Shibutani and M. Suenaga and I. Shigaki and R. Ogawa",

year = "1994",

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doi = "10.1016/0921-4526(94)91250-5",

language = "English",

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T1 - Reversible magnetization of Bi2Sr2CaCu2O8 single crystals at 30 K ≤ T < Tc

AU - Li, Qiang

AU - Shibutani, K.

AU - Suenaga, M.

AU - Shigaki, I.

AU - Ogawa, R.

PY - 1994/2/2

Y1 - 1994/2/2

N2 - We report magnetization measurements on high-quality Bi2Sr2CaCu2O8 single crystals in H ∥ the c-axis. Our reversible magnetization data at 30 K ≤ T < Tc show strong deviations from the linear dependence of M on ln(H) in the intermediate-field region. The Ginzburg-Landau parameter κ, obtained by using the Hao-Clem variational model, was found to vary significantly with the field range for the data fitting. This unusual behavior can not be explained by the thermal fluctuations of the vortices in layered superconductors.

AB - We report magnetization measurements on high-quality Bi2Sr2CaCu2O8 single crystals in H ∥ the c-axis. Our reversible magnetization data at 30 K ≤ T < Tc show strong deviations from the linear dependence of M on ln(H) in the intermediate-field region. The Ginzburg-Landau parameter κ, obtained by using the Hao-Clem variational model, was found to vary significantly with the field range for the data fitting. This unusual behavior can not be explained by the thermal fluctuations of the vortices in layered superconductors.

UR - https://www.scopus.com/pages/publications/0028760180

U2 - 10.1016/0921-4526(94)91250-5

DO - 10.1016/0921-4526(94)91250-5

M3 - Article

AN - SCOPUS:0028760180

SN - 0921-4526

VL - 194-196

SP - 1501

EP - 1502

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - PART 2

ER -

Reversible magnetization of Bi₂Sr₂CaCu₂O₈ single crystals at 30 K ≤ T < T_c

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