Tetragonal-to-Orthorhombic Structural Phase Transition at 90Kin the Superconductor Fe1:01Se
Journal Article
·
· Physical Review Letters
In this Letter we show that superconducting Fe{sub 1.01}Se undergoes a structural transition at 90 K from a tetragonal to an orthorhombic phase but that nonsuperconducting Fe{sub 1.03}Se does not. High resolution electron microscopy at low temperatures further reveals an unexpected additional modulation of the crystal structure of the superconducting phase that involves displacements of the Fe atoms, and that the nonsuperconducting composition shows a different, complex nanometer-scale structural modulation. Finally, we show that magnetism is not the driving force for the phase transition in the superconducting phase.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE SC OFFICE OF SCIENCE (SC)
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1040186
- Report Number(s):
- BNL-90533-2009-JA; PRLTAO; R&D Project: MA-015-MACA; KC0201010; TRN: US201210%%369
- Journal Information:
- Physical Review Letters, Vol. 103, Issue 5; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Tetragonal-to-Orthorhombic Structural Phase Transition at 90K in the Superconductor for Fe 1.01Se
Investigation of the Spin-glass Regime Between the Antiferromagnetic and Superconducting Phases in Fe1+ySexTe1−x
Phase Separation in the Iron Chalcogenide Superconductor Fe1+yTexSe1−x
Journal Article
·
Thu Jan 01 00:00:00 EST 2009
· Physical Review Letters
·
OSTI ID:1040186
+6 more
Investigation of the Spin-glass Regime Between the Antiferromagnetic and Superconducting Phases in Fe1+ySexTe1−x
Journal Article
·
Mon Nov 01 00:00:00 EDT 2010
· Journal of the Physical Society of Japan
·
OSTI ID:1040186
+13 more
Phase Separation in the Iron Chalcogenide Superconductor Fe1+yTexSe1−x
Journal Article
·
Thu May 19 00:00:00 EDT 2011
· New Journal of Physics
·
OSTI ID:1040186
+6 more