Please use this identifier to cite or link to this item: http://hdl.handle.net/123456789/1839
Title: Anisotropic superconductivity in La(O,F)BiSeS crystals revealed by field-angle dependent Andreev reflection spectroscopy
Authors: Aslam, M.
Sheet, G.
Gayen, Sirshendu
Singh, Avtar
Keywords: Superconductivity
Point-contact Spectroscopy
Andreev reflection
Issue Date: 2017
Publisher: Science Direct
Citation: Solid State Communications, 264
Abstract: From field-angle dependent Andreev reflection spectroscopy on single crystals of La(O,F)BiSeS, which belongs to the recently discovered BiCh (Ch = S, Se) based layered superconductors, we found that the superconductivity in La(O,F)BiSeS is highly anisotropic. We measured a superconducting energy gap of 0.61 meV for current injected along c-axis at 1.5 K. Detailed temperature and magnetic field dependent studies of the gap also reveal the presence of unconventional pairing in La(O,F)BiSeS. We show that the observed anisotropic superconducting properties can be attributed to the anisotropy in the superconducting order parameter with a complex symmetry in superconducting La(O,F)BiSeS.
Description: Only IISERM authors are available in the record
URI: https://www.sciencedirect.com/science/article/pii/S0038109817302326
http://hdl.handle.net/123456789/1839
Appears in Collections:Research Articles

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