Magnetic anisotropy of high-Tc superconductors Bi-2201 and Bi-2212 with various interlayer coupling

Kazuo Inoue, Shuichi Kawamata, Kiichi Okuda

Research output: Contribution to journalArticle

Abstract

Magnetic anisotropy was investigated by magnetic torque measurements for the layered High-Tc superconductors La-substituted Bi2Sr2CuO6+δ (Bi-2201) (Tc=28 K), zinc-phthalocyanine (ZnPc)-intercalated Bi2Sr2CaCu2O8+δ (Bi-2212) (Tc=55 K) and oxygen controlled Bi-2212 (Tc=57 approx. 86 K). Magnetic anisotropy is much affected by the interlayer coupling. The boundary of the crossover from three dimensional vortex lines to two dimensional vortex pancakes shifts toward higher field with increasing the interlayer coupling. The irreversible region in H-T phase diagram becomes small by decreasing the interlayer coupling.

Original languageEnglish
Pages (from-to)17-20
Number of pages4
JournalBulletin of the University of Osaka Prefecture, Series A Engineering and Natural Sciences
Volume45
Issue number1
Publication statusPublished - 1996
Externally publishedYes

Fingerprint

Magnetic anisotropy
Superconducting materials
Vortex flow
Torque measurement
Magnetic variables measurement
Phase diagrams
Zinc
Oxygen

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Magnetic anisotropy of high-Tc superconductors Bi-2201 and Bi-2212 with various interlayer coupling. / Inoue, Kazuo; Kawamata, Shuichi; Okuda, Kiichi.

In: Bulletin of the University of Osaka Prefecture, Series A Engineering and Natural Sciences, Vol. 45, No. 1, 1996, p. 17-20.

Research output: Contribution to journalArticle

@article{25df12259639413d9fdb889eb18347b9,
title = "Magnetic anisotropy of high-Tc superconductors Bi-2201 and Bi-2212 with various interlayer coupling",
abstract = "Magnetic anisotropy was investigated by magnetic torque measurements for the layered High-Tc superconductors La-substituted Bi2Sr2CuO6+δ (Bi-2201) (Tc=28 K), zinc-phthalocyanine (ZnPc)-intercalated Bi2Sr2CaCu2O8+δ (Bi-2212) (Tc=55 K) and oxygen controlled Bi-2212 (Tc=57 approx. 86 K). Magnetic anisotropy is much affected by the interlayer coupling. The boundary of the crossover from three dimensional vortex lines to two dimensional vortex pancakes shifts toward higher field with increasing the interlayer coupling. The irreversible region in H-T phase diagram becomes small by decreasing the interlayer coupling.",
author = "Kazuo Inoue and Shuichi Kawamata and Kiichi Okuda",
year = "1996",
language = "English",
volume = "45",
pages = "17--20",
journal = "Bulletin of the University of Osaka Prefecture, Series A Engineering and Natural Sciences",
issn = "0474-7844",
publisher = "University of Osaka Prefecture",
number = "1",

}

TY - JOUR

T1 - Magnetic anisotropy of high-Tc superconductors Bi-2201 and Bi-2212 with various interlayer coupling

AU - Inoue, Kazuo

AU - Kawamata, Shuichi

AU - Okuda, Kiichi

PY - 1996

Y1 - 1996

N2 - Magnetic anisotropy was investigated by magnetic torque measurements for the layered High-Tc superconductors La-substituted Bi2Sr2CuO6+δ (Bi-2201) (Tc=28 K), zinc-phthalocyanine (ZnPc)-intercalated Bi2Sr2CaCu2O8+δ (Bi-2212) (Tc=55 K) and oxygen controlled Bi-2212 (Tc=57 approx. 86 K). Magnetic anisotropy is much affected by the interlayer coupling. The boundary of the crossover from three dimensional vortex lines to two dimensional vortex pancakes shifts toward higher field with increasing the interlayer coupling. The irreversible region in H-T phase diagram becomes small by decreasing the interlayer coupling.

AB - Magnetic anisotropy was investigated by magnetic torque measurements for the layered High-Tc superconductors La-substituted Bi2Sr2CuO6+δ (Bi-2201) (Tc=28 K), zinc-phthalocyanine (ZnPc)-intercalated Bi2Sr2CaCu2O8+δ (Bi-2212) (Tc=55 K) and oxygen controlled Bi-2212 (Tc=57 approx. 86 K). Magnetic anisotropy is much affected by the interlayer coupling. The boundary of the crossover from three dimensional vortex lines to two dimensional vortex pancakes shifts toward higher field with increasing the interlayer coupling. The irreversible region in H-T phase diagram becomes small by decreasing the interlayer coupling.

UR - http://www.scopus.com/inward/record.url?scp=0030314934&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0030314934&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0030314934

VL - 45

SP - 17

EP - 20

JO - Bulletin of the University of Osaka Prefecture, Series A Engineering and Natural Sciences

JF - Bulletin of the University of Osaka Prefecture, Series A Engineering and Natural Sciences

SN - 0474-7844

IS - 1

ER -