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Title: Multiple superconducting states induced by pressure in Mo 3 Sb 7

Abstract

Tuning competing ordering mechanisms with hydrostatic pressure in the 4 d intermetallic compound Mo 3 Sb 7 reveals an intricate interplay of structure, magnetism, and superconductivity. Synchrotron x-ray diffraction and magnetic susceptibility measurements, both employing diamond anvil cell technologies, link a first-order structural phase transition to a doubling of the superconducting transition temperature. In contrast to the spin-dimer picture for Mo 3 Sb 7 , we deduce from x-ray absorption near-edge structure and dc magnetization measurements at ambient pressure that Mo 3 Sb 7 should possess only very small, itinerant magnetic moments. The pressure evolution of the superconducting transition temperature strongly suggests its enhancement is due to a difference in the phonon density-of-states with changed crystal symmetry.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1346232
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review B; Journal Volume: 95; Journal Issue: 12
Country of Publication:
United States
Language:
ENGLISH
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY

Citation Formats

Feng, Yejun, Wang, Yishu, Palmer, A., Li, Ling, Silevitch, D. M., Calder, S., and Rosenbaum, T. F. Multiple superconducting states induced by pressure in Mo3Sb7. United States: N. p., 2017. Web. doi:10.1103/PhysRevB.95.125102.
Feng, Yejun, Wang, Yishu, Palmer, A., Li, Ling, Silevitch, D. M., Calder, S., & Rosenbaum, T. F. Multiple superconducting states induced by pressure in Mo3Sb7. United States. doi:10.1103/PhysRevB.95.125102.
Feng, Yejun, Wang, Yishu, Palmer, A., Li, Ling, Silevitch, D. M., Calder, S., and Rosenbaum, T. F. Wed . "Multiple superconducting states induced by pressure in Mo3Sb7". United States. doi:10.1103/PhysRevB.95.125102.
@article{osti_1346232,
title = {Multiple superconducting states induced by pressure in Mo3Sb7},
author = {Feng, Yejun and Wang, Yishu and Palmer, A. and Li, Ling and Silevitch, D. M. and Calder, S. and Rosenbaum, T. F.},
abstractNote = {Tuning competing ordering mechanisms with hydrostatic pressure in the 4 d intermetallic compound Mo 3 Sb 7 reveals an intricate interplay of structure, magnetism, and superconductivity. Synchrotron x-ray diffraction and magnetic susceptibility measurements, both employing diamond anvil cell technologies, link a first-order structural phase transition to a doubling of the superconducting transition temperature. In contrast to the spin-dimer picture for Mo 3 Sb 7 , we deduce from x-ray absorption near-edge structure and dc magnetization measurements at ambient pressure that Mo 3 Sb 7 should possess only very small, itinerant magnetic moments. The pressure evolution of the superconducting transition temperature strongly suggests its enhancement is due to a difference in the phonon density-of-states with changed crystal symmetry.},
doi = {10.1103/PhysRevB.95.125102},
journal = {Physical Review B},
number = 12,
volume = 95,
place = {United States},
year = {Wed Mar 01 00:00:00 EST 2017},
month = {Wed Mar 01 00:00:00 EST 2017}
}