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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
physics and astronomy
Impurity-controlled superconductivity/spin density wave interplay in the organic superconductor: (TMTSF)
2
ClO
4
Europhysics Letters, Volume 72, No. 4, Year 2005
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Description
The study of the anion ordered (TMTSF)2ClO 4(1-x)ReO4x solid solution in the limit of a low ReO 4- substitution level (0 ≤ x ≤ 17%) has revealed a new and interesting phase diagram. Superconductivity is drastically suppressed as the effect of ReO4- non-magnetic point defects increases following the digamma behaviour for usual superconductors in the presence of paramagnetic impurities. Then, no long-range order can be stabilized above 0.1K in a narrow window of substitution. Finally, an insulating SDW ground state in ReO4--rich samples is rapidly stabilized with the decrease of the potential strength leading to the doubling of the transverse periodicity. This extensive study has shown that the superconducting order parameter must change its sign over the Fermi surface. © EDP Sciences.
Authors & Co-Authors
Joo, N.
France, Orsay
Laboratoire de Physique Des Solides
Tunisia, Tunis
Université de Tunis el Manar, Faculté Des Sciences de Tunis
Auban-Senzier, Pascale S.
France, Orsay
Laboratoire de Physique Des Solides
Pasquier, Claude R.
France, Orsay
Laboratoire de Physique Des Solides
Jerome, Denis
France, Orsay
Laboratoire de Physique Des Solides
Bechgaard, K.
Denmark, Copenhagen
H. C. Ørsted Institute
Statistics
Citations: 5
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1209/epl/i2005-10281-1
ISSN:
02955075