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Physical properties of SrSn(4) single crystals
Xiao Lin1, Sergey L Bud'ko, German D Samolyuk
1Department of Physics and Astronomy, Iowa State University, Ames, IA 50011-3160, USA.
Abstract:
We present detailed thermodynamic and transport measurements on single crystals of the recently discovered binary intermetallic superconductor, SrSn(4). We find this material to be a slightly anisotropic three-dimensional, strongly coupled, possibly multiband, superconductor. Hydrostatic pressure causes a decrease in the superconducting transition temperature at the rate of ≈ - 0.068 K kbar(-1). Band structure calculations are consistent with experimental data on the Sommerfeld coefficient and upper superconducting critical field anisotropy, and suggest a complex, multi-sheet Fermi surface formed by four bands.
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