Multiple superconducting gaps in MgB2 single crystals from magnetic torque

Atsumi, Toshiyuki; Xu, Mingxiang; Kitazawa, Hideaki; Ishida, Toshimasa

doi:10.1016/j.physc.2004.01.130

Physica C: Superconductivity

2004

DOI: 10.1016/j.physc.2004.01.130

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Multiple superconducting gaps in MgB2 single crystals from magnetic torque

Toshiyuki Atsumi

Mingxiang Xu

Hideaki Kitazawa

et al.

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“…After submission of this manuscript we became aware of a torque study 37 finding, assuming ␥ = ␥ H , a similar H dependence of the anisotropy at 10 K.…”

mentioning

confidence: 99%

Anisotropy and internal-field distribution ofMgB2in the mixed state at low temperatures

et al. 2004

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Magnetization and muon spin relaxation on MgB 2 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 H c1 and a high H c2 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.

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“…After submission of this manuscript we became aware of a torque study 37 finding, assuming ␥ = ␥ H , a similar H dependence of the anisotropy at 10 K.…”

mentioning

confidence: 99%

Anisotropy and internal-field distribution ofMgB2in the mixed state at low temperatures

et al. 2004

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show abstract

Anisotropy in mixed superconducting state of two-band MgB2 superconductor

Kubota¹,

Ishida²

2010

Physica C: Superconductivity and its Applications

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Multiple superconducting gaps in MgB2 single crystals from magnetic torque

Cited by 2 publications

References 6 publications

Anisotropy and internal-field distribution ofMgB2in the mixed state at low temperatures

Anisotropy and internal-field distribution ofMgB2in the mixed state at low temperatures

Anisotropy in mixed superconducting state of two-band MgB2 superconductor

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