Superconductivity in Fe-chalcogenides: Superconducting Materials: Conventional, Unconventional and Undetermined

Chung-Chieh Chang, T.K. Chen, W.C. Lee, P.H. Lin, J. M. Wang, Y.C. Wen, Meng Ping Wu, M.K. Wu

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

FeSe, which has the simplest crystal structure among the Fe based superconductors, and related chalcogenide superconductors are ideal candidates for investigating the detailed mechanism of the iron-based superconductors. Here, we summarize recent studies on the Fe-chalcogenides, with the goal to address some unresolved questions such as what is the influence of chemical stoichiometry on the phase diagram, what is the exact parent phase of FeSe system, and why can Tcs be so dramatically enhanced in FeSe based superconductors? Recent developments in novel synthesis to prepare chalcogenide crystals, nano-materials and thin films allow the community to begin to address these issues. Then we review physical properties of the Fe chalcogenides, specifically focusing on optical properties, scanning tunneling spectroscopy and angle-resolved photoemission spectroscopy (ARPES) results. These measurements along with recent theories provide a framework for better understanding the origin of superconductivity in FeSe and Fe-chalcogenides.
Original languageEnglish
Pages (from-to)423-434
Number of pages12
JournalPhysica C: Superconductivity and its Applications
Volume514
DOIs
Publication statusPublished - Jul 15 2015
Externally publishedYes

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Chalcogenides
chalcogenides
Superconductivity
Superconducting materials
superconductivity
Photoelectron spectroscopy
Stoichiometry
Phase diagrams
Optical properties
Physical properties
Crystal structure
Spectroscopy
spectroscopy
Scanning
stoichiometry
Thin films
Crystals
photoelectric emission
physical properties
phase diagrams

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Superconductivity in Fe-chalcogenides : Superconducting Materials: Conventional, Unconventional and Undetermined. / Chang, Chung-Chieh; Chen, T.K.; Lee, W.C.; Lin, P.H.; Wang, J. M.; Wen, Y.C.; Wu, Meng Ping; Wu, M.K.

In: Physica C: Superconductivity and its Applications, Vol. 514, 15.07.2015, p. 423-434.

Research output: Contribution to journalArticle

Chang, Chung-Chieh ; Chen, T.K. ; Lee, W.C. ; Lin, P.H. ; Wang, J. M. ; Wen, Y.C. ; Wu, Meng Ping ; Wu, M.K. / Superconductivity in Fe-chalcogenides : Superconducting Materials: Conventional, Unconventional and Undetermined. In: Physica C: Superconductivity and its Applications. 2015 ; Vol. 514. pp. 423-434.
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