Journal
APPLIED PHYSICS LETTERS
Volume 103, Issue 20, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.4830225
Keywords
-
Categories
Funding
- DOE-NNSA [DE-NA0001974]
- DOE-BES [DE-FG02-99ER45775, DE-AC02-06CH11357]
- NSF
- National Science Foundation-Earth Sciences [EAR-0622171]
- Department of Energy-Geosciences [DE-FG02-94ER14466]
- DFG (Augsburg-Munich) [TRR 80]
Ask authors/readers for more resources
We have performed combined experimental and theoretical high-pressure investigations on magnetoelectric HgCr2S4 spinel. Overall, HgCr2S4 exhibits three reversible structural transitions under pressure: the starting Fd-3m phase adopts a tetragonal I4(1)/amd structure at 20GPa, an orthorhombic distortion occurs above 26 GPa, whereas a third structural transition takes place beyond 37 GPa. During the Fd-3m to I4(1)/amd structural transition, HgCr2S4 experiences a volume change of 4% which is unexpected from space group symmetry considerations alone. Furthermore, the Fd-3m to I4(1)/amd transformation appears to be concomitant with an insulator-to-metal transition whereas compression of HgCr2S4 leads to a gradual suppression of its ferromagnetism. (C) 2013 AIP Publishing LLC.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available