Anisotropy parameter for Bi2Sr2CaCu2O8+δ single crystal by magnetic torque measurements in high magnetic fields

Shuichi Kawamata, Kazuo Inoue, Kiichi Okuda, Takahiko Sasaki

研究成果: Article

4 引用 (Scopus)

抜粋

The applied field dependence of the anisotropy parameter, γ, defined by the square root of the effective mass ratio for the layered superconductor Bi2Sr2CaCu2O8+δ single crystal has been obtained by the magnetic torque measurements in several static magnetic fields up to 210kOe at 52 and 69 K. Although γ has a huge value of larger than 200 for fields below 20kOe, it becomes less than 60 in 210kOe. It is considered that the huge γ in lower field is affected by the layered structure effect like the intrinsic pinning in addition to the irreversibility due to the flux pinning. The relatively small δ value in higher field reveals the actual effective mass anisotropy.

元の言語English
ページ(範囲)437-440
ページ数4
ジャーナルPhysica B: Condensed Matter
246-247
DOI
出版物ステータスPublished - 1998 5 29

ASJC Scopus subject areas

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

フィンガープリント Anisotropy parameter for Bi<sub>2</sub>Sr<sub>2</sub>CaCu<sub>2</sub>O<sub>8+δ</sub> single crystal by magnetic torque measurements in high magnetic fields' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

  • これを引用