Superconductivity in noncentrosymmetric Ag2Pd3S


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Please use this identifier to cite or link to this item:http://hdl.handle.net/2115/66433

Title:	Superconductivity in noncentrosymmetric Ag2Pd3S
Authors:	Yoshida, H. Browse this author →KAKEN DB
	Okabe, H. Browse this author
	Matsushita, Y. Browse this author
	Isobe, M. Browse this author
	Takayama-Muromachi, E. Browse this author
Issue Date:	22-May-2017
Publisher:	American Physical Society (APS)
Journal Title:	Physical Review B
Volume:	95
Issue:	18
Start Page:	184514
Publisher DOI:	10.1103/PhysRevB.95.184514
Abstract:	We have successfully synthesized the single crystal of Ag2Pd3S, which exhibits superconductivity with the transition temperature of T-c = 2.25 K. Ag2Pd3S crystallizes in the space group P4(1)32 with the filled beta-Mn structure, which has no inversion symmetry. The value of the Ginzburg-Landau parameter.GL indicates that Ag2Pd3S is a type-II superconductor. Delta C(T-c)gamma T-n(c) = 1.50 and 2 Delta/k(B)T(c) = 3.48 from the heat-capacity analyses indicate that Ag2Pd3S is a weak-coupling Bardeen-Cooper-Schrieffer (BCS) superconductor with an isotropic superconducting gap. On the other hand, the violation of the Werthamer-Helfand-Hohenberg curve in the H-T phase diagram implies Ag2Pd3S is not a typical BCS superconductor.
Rights:	©2017 American Physical Society
Type:	article
URI:	http://hdl.handle.net/2115/66433
Appears in Collections:	理学院・理学研究院 (Graduate School of Science / Faculty of Science) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 吉田紘行

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