Interplay of nematic and magnetic orders in FeSe under pressure

Scherer, Daniel D., Jacko, A. C., Friedrich, Christoph, Sasloglu, Ersoy, Blugel, Stefan, Valenti, Roser and Andersen, Brian M. (2017) Interplay of nematic and magnetic orders in FeSe under pressure. Physical Review B: Condensed Matter and Materials Physics, 95 9: . doi:10.1103/PhysRevB.95.094504

Author Scherer, Daniel D.
Jacko, A. C.
Friedrich, Christoph
Sasloglu, Ersoy
Blugel, Stefan
Valenti, Roser
Andersen, Brian M.
Title Interplay of nematic and magnetic orders in FeSe under pressure
Journal name Physical Review B: Condensed Matter and Materials Physics   Check publisher's open access policy
ISSN 1550-235X
Publication date 2017-03-01
Sub-type Article (original research)
DOI 10.1103/PhysRevB.95.094504
Open Access Status Not yet assessed
Volume 95
Issue 9
Total pages 12
Place of publication College Park, MD, United States
Publisher American Physical Society
Language eng
Formatted abstract
We offer an explanation for the recently observed pressure-induced magnetic state in the iron-chalcogenide FeSe based on ab initio estimates for the pressure evolution of the most important Coulomb interaction parameters. We find that an increase of pressure leads to an overall decrease mostly in the nearest-neighbor Coulomb repulsion, which in turn leads to a reduction of the nematic order and the generation of magnetic stripe order. We treat the concomitant effects of band renormalization and the induced interplay of nematic and magnetic order in a self-consistent way and determine the generic topology of the temperature-pressure phase diagram and find qualitative agreement with the experimentally determined phase diagram.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Mathematics and Physics
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