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Nature Communications, volume 7, issue 1, publication number 12262

A disorder-enhanced quasi-one-dimensional superconductor

A P Petrović 1
D Ansermet 1
D. Chernyshov 2
M. HOESCH 3
D. Salloum 4, 5
P. Gougeon 4
M. Potel 4
L. BOERI 6
C. Panagopoulos 1
Publication typeJournal Article
Publication date2016-07-22
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor16.6
ISSN20411723, 20411723
General Chemistry
General Biochemistry, Genetics and Molecular Biology
General Physics and Astronomy
Abstract
A powerful approach to analysing quantum systems with dimensionality d>1 involves adding a weak coupling to an array of one-dimensional (1D) chains. The resultant quasi-1D (q1D) systems can exhibit long-range order at low temperature, but are heavily influenced by interactions and disorder due to their large anisotropies. Real q1D materials are therefore ideal candidates not only to provoke, test and refine theories of strongly correlated matter, but also to search for unusual emergent electronic phases. Here we report the unprecedented enhancement of a superconducting instability by disorder in single crystals of Na2−δMo6Se6, a q1D superconductor comprising MoSe chains weakly coupled by Na atoms. We argue that disorder-enhanced Coulomb pair-breaking (which usually destroys superconductivity) may be averted due to a screened long-range Coulomb repulsion intrinsic to disordered q1D materials. Our results illustrate the capability of disorder to tune and induce new correlated electron physics in low-dimensional materials. Disorder localizes electrons, which is usually detrimental to the onset of superconductivity. Here, Petrović et al. report a disorder-enhanced superconducting instability in quasi-one dimensional Na2-dMo6Se6and suggest that this effect may originate from an intrinsically screened Coulomb repulsion.

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GOST Copy
Petrović A. P. et al. A disorder-enhanced quasi-one-dimensional superconductor // Nature Communications. 2016. Vol. 7. No. 1. 12262
GOST all authors (up to 50) Copy
Petrović A. P., Ansermet D., Chernyshov D., HOESCH M., Salloum D., Gougeon P., Potel M., BOERI L., Panagopoulos C. A disorder-enhanced quasi-one-dimensional superconductor // Nature Communications. 2016. Vol. 7. No. 1. 12262
RIS |
Cite this
RIS Copy
TY - JOUR
DO - 10.1038/ncomms12262
UR - https://doi.org/10.1038/ncomms12262
TI - A disorder-enhanced quasi-one-dimensional superconductor
T2 - Nature Communications
AU - Petrović, A P
AU - Ansermet, D
AU - Chernyshov, D.
AU - HOESCH, M.
AU - Salloum, D.
AU - Gougeon, P.
AU - Potel, M.
AU - BOERI, L.
AU - Panagopoulos, C.
PY - 2016
DA - 2016/07/22
PB - Springer Nature
IS - 1
VL - 7
SN - 2041-1723
SN - 2041-1723
ER -
BibTex
Cite this
BibTex Copy
@article{2016_Petrović,
author = {A P Petrović and D Ansermet and D. Chernyshov and M. HOESCH and D. Salloum and P. Gougeon and M. Potel and L. BOERI and C. Panagopoulos},
title = {A disorder-enhanced quasi-one-dimensional superconductor},
journal = {Nature Communications},
year = {2016},
volume = {7},
publisher = {Springer Nature},
month = {jul},
url = {https://doi.org/10.1038/ncomms12262},
number = {1},
doi = {10.1038/ncomms12262}
}
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