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| Author | Amigó, M.L.; Ale Crivillero, M.V.; Franco, D.G.; Guimpel, J.; Nieva, G. | ||||
| Title | Influence of the Fe Concentration on the Superconducting Properties of Fe_{1-y}Se | Type | Journal Article | ||
| Year | 2015 | Publication | Journal of Low Temperature Physics | Abbreviated Journal | |
| Volume | 179 | Issue | 1-2 | Pages | 15-20 |
| Keywords | Chalcogenide; Vortex pinning; Correlated defects; Electrical transport; Fe deficiency | ||||
| Abstract | We present a comparative study of electrical transport properties in the normal state and in the dissipative superconducting state between pure TeX -FeSe phase and Fe deficient Fe TeX Se crystals. We discuss the influence of the intergrowth of the magnetic hexagonal phase (Fe TeX Se TeX ) in Fe deficient samples when compared to pure TeX -FeSe samples. In the superconducting state, we measured the TeX -plane electrical resistivity with magnetic field up to 16 T and the electrical resistivity as a function of the angle between the TeX axis and the applied field. The angular dependence at fixed temperature below the superconducting critical temperature, TeX , is very different for both sets of crystals. The Fe deficient samples display a vortex pinning-related feature at TeX 57 TeX off the plane while the pure TeX -FeSe phase samples show the persistence of a strong angular-dependent magnetoresistance characteristic of the normal state electronic structure. | ||||
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| Corporate Author | Thesis | ||||
| Publisher | Springer US | Place of Publication | Editor | ||
| Language | Summary Language | Original Title | |||
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| ISSN | 0022-2291 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Notes | Approved  |
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| Call Number | BT @ pedrazp @ | Serial | 712 | ||
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