Journal of Physics Condensed Matter, volume 27, issue 4, pages 45701
Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys
Publication type: Journal Article
Publication date: 2015-01-07
Journal:
Journal of Physics Condensed Matter
Quartile SCImago
Q2
Quartile WOS
Q3
Impact factor: 2.7
ISSN: 09538984, 1361648X
Condensed Matter Physics
General Materials Science
Abstract
We present a detailed study of the superconducting properties in the beta-phase Mo$_{1-x}$Re$_x$ (x = 0.25 and 0.4) solid solution alloys pursued through magnetization and heat capacity measurements. The temperature dependence of the upper critical field H$_{C2}$(T) in these binary alloys shows a deviation from the prediction of the Werthamer-Helfand-Hohenberg (WHH) theory. The temperature dependence of superfluid density estimated from the variation of lower critical field H$_{C1}$ with temperature, cannot be explained within the framework of a single superconducting energy gap. The heat capacity also shows an anomalous feature in its temperature dependence. All these results can be reasonably explained by considering the existence of two superconducting energy gaps in these Mo$_{1-x}$Re$_x$ alloys. Initial results of electronic structure calculations and resonant photoelectron spectroscopy measurements support this possibility and suggest that the Re-5d like states at the Fermi level may not intermix with the Mo-5p and 5s like states in the beta-phase Mo$_{1-x}$Re$_x$ alloys and contribute quite distinctly to the superconductivity of these alloys.
Top-30
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Citations by publishers
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IOP Publishing
9 publications, 42.86%
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3 publications, 14.29%
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2 publications, 9.52%
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2 publications, 9.52%
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Springer Nature
1 publication, 4.76%
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Elsevier
1 publication, 4.76%
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1 publication, 4.76%
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Treatise
1 publication, 4.76%
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Sundar S. et al. Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys // Journal of Physics Condensed Matter. 2015. Vol. 27. No. 4. p. 45701.
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Sundar S., Sharath Chandra L., Chattopadhyay M. K., Roy S. Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys // Journal of Physics Condensed Matter. 2015. Vol. 27. No. 4. p. 45701.
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TY - JOUR
DO - 10.1088/0953-8984/27/4/045701
UR - https://doi.org/10.1088/0953-8984/27/4/045701
TI - Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys
T2 - Journal of Physics Condensed Matter
AU - Sundar, Shyam
AU - Sharath Chandra, L.S.
AU - Chattopadhyay, M K
AU - Roy, S.B.
PY - 2015
DA - 2015/01/07 00:00:00
PB - IOP Publishing
SP - 45701
IS - 4
VL - 27
SN - 0953-8984
SN - 1361-648X
ER -
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@article{2015_Sundar,
author = {Shyam Sundar and L.S. Sharath Chandra and M K Chattopadhyay and S.B. Roy},
title = {Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys},
journal = {Journal of Physics Condensed Matter},
year = {2015},
volume = {27},
publisher = {IOP Publishing},
month = {jan},
url = {https://doi.org/10.1088/0953-8984/27/4/045701},
number = {4},
pages = {45701},
doi = {10.1088/0953-8984/27/4/045701}
}
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Sundar, Shyam, et al. “Evidence of multiband superconductivity in theβ-phase Mo1−xRexalloys.” Journal of Physics Condensed Matter, vol. 27, no. 4, Jan. 2015, p. 45701. https://doi.org/10.1088/0953-8984/27/4/045701.
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