Superconductivity in MgB
            <sub>2</sub>

Wilke, Rudeger H. T.; Bud’ko, Sergey L.; Canfield, Paul C.; Finnemore, D. K.

doi:10.1002/9783527631049.ch8

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2012

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“…On the one hand, BaSn 5 has a similar band dispersions near the Fermi level (E F ) as A15 type superconductors, such as V 3 Si and Nb 3 Sn [1]. On the other hand, BaSn 5 forms in P6/mmm structure, a variant of AlB 2 structure, the prototype of MgB 2 which superconducts at ∼ 40 K [2][3][4][5].…”

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confidence: 99%

Physical properties of single crystalline BaSn₅

Lin

Bud’ko

Canfield

2012

Philosophical Magazine

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We present a comprehensive study of the binary intermetallic superconductor, BaSn 5 . Highquality single crystalline BaSn 5 was grown out of Sn flux. Detailed thermodynamic and transport measurements were performed to study BaSn 5 's normal and superconducting state properties. This material appears to be a strongly coupled, multiband superconductor. H c2 (T ) is almost isotropic. De Haas-van Alphen oscillations were observed and two effective masses were estimated from the FFT spectra. Hydrostatic pressure causes a decrease in the superconducting transition temperature at the rate of ≈ −0.053 ± 0.001 K/kbar.

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