Pressure-induced reversible amorphization in superconducting compound FeSe[subscript 0.5]Te[subscript 0.5]
Journal Article
·
· High Pressure Res.
We report pressure-induced amorphization phenomenon in a superconducting compound FeSe0.5Te0.5 toa pressure of 27 GPa in a diamond anvil cell. The synchrotron x-ray diffraction studies reveal that the ambient pressure tetragonal phase (space group P4/nmm) transforms to an amorphous phase at 11.5 GPa during compression and reverts back to the tetragonal phase during decompression at 2.8 GPa. The measured equation of state for the tetragonal phase and the amorphous phase is presented. The disordering of Fe(SeTe)4 tetrahedra under compression is attributed to a kinetic hindrance to a stable phase and is likely to impact its superconducting properties under high pressures.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 1005628
- Journal Information:
- High Pressure Res., Vol. 29, Issue (2) ; 06, 2009; ISSN 0895-7959
- Country of Publication:
- United States
- Language:
- ENGLISH
Similar Records
Low temperature amorphization and superconductivity in FeSe single crystals at high pressures
Simultaneous measurement of pressure evolution of crystal structure and superconductivity in FeSe[subscript 0.92] using designer diamonds
Equation of State and High Pressure Irreversible Amorphization in Y[subscript 3] Fe[subscript 5]O[subscript 12]
Journal Article
·
Wed Aug 04 00:00:00 EDT 2010
· J. Mater. Res.
·
OSTI ID:1005628
+7 more
Simultaneous measurement of pressure evolution of crystal structure and superconductivity in FeSe[subscript 0.92] using designer diamonds
Journal Article
·
Wed Apr 19 00:00:00 EDT 2017
· Europhysics Letters
·
OSTI ID:1005628
+4 more
Equation of State and High Pressure Irreversible Amorphization in Y[subscript 3] Fe[subscript 5]O[subscript 12]
Journal Article
·
Fri Dec 03 00:00:00 EST 2010
· JETP Lett.
·
OSTI ID:1005628
+3 more