@article{ISI:000434628400003, abstract = {Majority of the A(2)B(3)-type chalcogenide systems with strong spin-orbit coupling (SOC), such as Bi2Se3, Bi2Te3, and Sb2Te3, etc., are topological insulators. One important exception is Sb2Se3 where a topological nontrivial phase was argued to be possible under ambient conditions, but such a phase could be detected to exist only under pressure. In this paper, we show that Sb2Se3 like Bi2Se3 displays a generation of highly spin-polarized current under mesoscopic superconducting point contacts as measured by point-contact Andreev reflection spectroscopy. In addition, we observe a large negative and anisotropic magnetoresistance of the mesoscopic metallic point contacts formed on Sb2Se3. Our band-structure calculations confirm the trivial nature of Sb2Se3 crystals and reveal two trivial surface states one of which shows large spin splitting due to Rashba-type SOC. The observed high spin polarization and related phenomena in Sb2Se3 can be attributed to this spin splitting.}, article-number = {235306}, author = {Das, Shekhar and Sirohi, Anshu and Gupta, Gaurav Kumar and Kamboj, Suman and Vasdev, Aastha and Gayen, Sirshendu and Guptasarma, Prasenjit and Das, Tanmoy and Sheet, Goutam}, doi = {10.1103/PhysRevB.97.235306}, eissn = {2469-9969}, issn = {2469-9950}, journal = {PHYSICAL REVIEW B}, month = {JUN 8}, number = {23}, orcid-numbers = {Das, Shekhar/0000-0002-3988-4072}, times-cited = {2}, title = {Discovery of highly spin-polarized conducting surface states in the strong spin-orbit coupling semiconductor Sb2Se3}, unique-id = {ISI:000434628400003}, volume = {97}, year = {2018} }