Anisotropy and internal-field distribution of MgB2 in the mixed state at low temperatures

Physical Review B - Condensed Matter and Materials Physics 70 巻 22 号 224513-1-224513-5 頁 2004-12-14 発行
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タイトル ( eng )
Anisotropy and internal-field distribution of MgB2 in the mixed state at low temperatures
作成者
Angst M.
Di Castro D.
Eshchenko D. G.
Khasanov R.
Kohout S.
Savic I. M.
Shengelaya A.
Bud'ko S. L.
Canfield P. C.
Jun J.
Karpinski J.
Kazakov S. M.
Raquel A. Ribeiro
Keller H.
収録物名
Physical Review B - Condensed Matter and Materials Physics
70
22
開始ページ 224513-1
終了ページ 224513-5
抄録
Magnetization and muon spin relaxation on MgB2 were measured as a function of the applied magnetic field at 2 K. Both indicate an inverse-squared penetration depth strongly decreasing with increasing field H below about 1 T. Magnetization also suggests the anisotropy of the penetration depth increases with increasing H, interpolating between a low Hc1 and a high Hc2 anisotropy. Measurements of the torque as a function of the angle between the field and the c axis of the crystal are in agreement with this finding, while also ruling out drastic differences between the mixed state anisotropies of the two basic length scales penetration depth and coherence length.
著者キーワード
magnesium compounds
mixed state
magnetic anisotropy
muon probes
penetration depth (superconductivity)
coherence length
言語
英語
資源タイプ 学術雑誌論文
出版者
American Physical Society
発行日 2004-12-14
権利情報
Copyright (c) 2004 The American Physical Society.
出版タイプ Version of Record(出版社版。早期公開を含む)
アクセス権 オープンアクセス
収録物識別子
[ISSN] 0163-1829
[DOI] 10.1103/PhysRevB.70.224513
[NCID] AA11187113
[DOI] http://dx.doi.org/10.1103/PhysRevB.70.224513