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  Interplay of structure, magnetism, and superconductivity in Se substituted iron telluride with excess Fe

Cherian, D., Rößler, S., Wirth, S., & Elizabeth, S. (2015). Interplay of structure, magnetism, and superconductivity in Se substituted iron telluride with excess Fe. Journal of Physics: Condensed Matter, 27(20): 205702, pp. 1-8. doi:10.1088/0953-8984/27/20/205702.

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 Creators:
Cherian, Dona1, Author
Rößler, S.2, Author              
Wirth, S.3, Author              
Elizabeth, Suja1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
3Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              

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 Abstract: We investigated the evolution of the temperature-composition phase diagram of Fe1+y Te upon Se substitution. In particular, the effect of Se substitution on the two-step, coupled magneto-structural transition in Fe1+y Te single crystals is investigated. To this end, the nominal Fe excess was kept at y = 0.12. For low Se concentrations, the two magneto-structural transitions displayed a tendency to merge. In spite of the high Fe-content, superconductivity emerges for Se concentrations x >= 0.1. We present a temperature-composition phase diagram to demonstrate the interplay of structure, magnetism and superconductivity in these ternary Fe-chalcogenides.

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Language(s): eng - English
 Dates: 2015-05-062015-05-06
 Publication Status: Published in print
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Title: Journal of Physics: Condensed Matter
  Abbreviation : J. Phys.: Condens. Matter
Source Genre: Journal
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Publ. Info: Bristol, UK : IOP Publishing
Pages: - Volume / Issue: 27 (20) Sequence Number: 205702 Start / End Page: 1 - 8 Identifier: ISSN: 0953-8984
CoNE: https://pure.mpg.de/cone/journals/resource/954928562478