Pressure induced second-order structural transition in Sr3Ir2O7.
J Phys Condens Matter
; 26(21): 215402, 2014 May 28.
Article
in En
| MEDLINE
| ID: mdl-24805299
ABSTRACT
We conducted in situ angle dispersive high pressure x-ray diffraction experiments on Sr3Ir2O7 up to 23.1 GPa at 25 K with neon as the pressure transmitting medium. Pressure induces a highly anisotropic compressional behavior seen where the tetragonal plane is compressed much faster than the perpendicular direction. By analyzing different aspects of the diffraction data, a second-order structural transition is observed at approximately 14 GPa, which is accompanied by the insulating state to nearly metallic state at 13.2 GPa observed previously (Li et al 2013 Phys. Rev. B 87 235127). Our results highlight the coupling between electronic state and lattice structure in Sr3Ir2O7 under pressure.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Oxides
/
Pressure
/
Strontium
/
Iridium
Language:
En
Journal:
J Phys Condens Matter
Journal subject:
BIOFISICA
Year:
2014
Document type:
Article
Affiliation country:
Estados Unidos