Fragile structural transition in Mo3Sb7
Abstract
Mo3Sb7 single crystals lightly doped with Cr, Ru, or Te are studied in order to explore the interplay between superconductivity, magnetism, and the cubic-tetragonal structural transition. The structural transition at 53 K is extremely sensitive to Ru or Te substitution which introduces additional electrons, but robust against Cr substitution. We observed no sign of a structural transition in superconducting Mo2.91Ru0.09Sb7 and Mo3Sb6.975Te0.025. In contrast, 3 at.% Cr doping only slightly suppresses the structural transition to 48 K while leaving no trace of superconductivity above 1.8 K. Analysis of magnetic properties suggests that the interdimer interaction in Mo3Sb7 is near a critical value and essential for the structural transition. Futhermore, all dopants suppress the superconductivity of Mo3Sb7. The tetragonal structure is not necessary for superconductivity.
- Authors:
-
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Publication Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1210153
- Alternate Identifier(s):
- OSTI ID: 1209842
- Grant/Contract Number:
- AC05-00OR22725
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 6; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
Yan, Jiaqiang -Q., McGuire, Michael A, May, Andrew F, Parker, David S., Mandrus, D. G., and Sales, Brian C. Fragile structural transition in Mo3Sb7. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.92.064507.
Yan, Jiaqiang -Q., McGuire, Michael A, May, Andrew F, Parker, David S., Mandrus, D. G., & Sales, Brian C. Fragile structural transition in Mo3Sb7. United States. https://doi.org/10.1103/PhysRevB.92.064507
Yan, Jiaqiang -Q., McGuire, Michael A, May, Andrew F, Parker, David S., Mandrus, D. G., and Sales, Brian C. Mon .
"Fragile structural transition in Mo3Sb7". United States. https://doi.org/10.1103/PhysRevB.92.064507. https://www.osti.gov/servlets/purl/1210153.
@article{osti_1210153,
title = {Fragile structural transition in Mo3Sb7},
author = {Yan, Jiaqiang -Q. and McGuire, Michael A and May, Andrew F and Parker, David S. and Mandrus, D. G. and Sales, Brian C.},
abstractNote = {Mo3Sb7 single crystals lightly doped with Cr, Ru, or Te are studied in order to explore the interplay between superconductivity, magnetism, and the cubic-tetragonal structural transition. The structural transition at 53 K is extremely sensitive to Ru or Te substitution which introduces additional electrons, but robust against Cr substitution. We observed no sign of a structural transition in superconducting Mo2.91Ru0.09Sb7 and Mo3Sb6.975Te0.025. In contrast, 3 at.% Cr doping only slightly suppresses the structural transition to 48 K while leaving no trace of superconductivity above 1.8 K. Analysis of magnetic properties suggests that the interdimer interaction in Mo3Sb7 is near a critical value and essential for the structural transition. Futhermore, all dopants suppress the superconductivity of Mo3Sb7. The tetragonal structure is not necessary for superconductivity.},
doi = {10.1103/PhysRevB.92.064507},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 6,
volume = 92,
place = {United States},
year = {Mon Aug 10 00:00:00 EDT 2015},
month = {Mon Aug 10 00:00:00 EDT 2015}
}
Web of Science
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Works referencing / citing this record:
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