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Superconductivity in a new layered bismuth oxyselenide: LaO0.5F0.5BiSe2

Type of publication Peer-reviewed
Publikationsform Original article (peer-reviewed)
Author Krzton-Maziopa A., Guguchia Z., Pomjakushina E., Pomjakushin V., Khasanov R., Luetkens H., Biswas P. K., Amato A., Keller H., Conder K.,
Project Interplay between the superconductivity and magnetism in cuprate and Fe-based superconductors
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Original article (peer-reviewed)

Journal JOURNAL OF PHYSICS-CONDENSED MATTER
Volume (Issue) 26(21)
Page(s) 215702
Title of proceedings JOURNAL OF PHYSICS-CONDENSED MATTER
DOI 10.1088/0953-8984/26/21/215702

Abstract

We report superconductivity at T-c approximate to 2.6 K in a new layered bismuth oxyselenide LaO0.5F0.5BiSe2 with the ZrCuSiAs-type structure composed of alternating superconducting BiSe2 and blocking LaO layers. The superconducting properties of LaO0.5F0.5BiSe2 were investigated by means of dc magnetization, resistivity and muon-spin rotation experiments, revealing the appearance of bulk superconductivity with a rather large superconducting volume fraction of approximate to 70\% at 1.8 K.
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