Journal
PHYSICAL REVIEW B
Volume 80, Issue 6, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.064420
Keywords
antiferromagnetic materials; copper compounds; free energy; magnetic transitions; magnetoacoustic effects; magnetoelectric effects; superconducting magnets; ultrasonic velocity
Funding
- Natural Science and Engineering Research Council of Canada (NSERC)
- Canada Foundation for Innovation (CFI)
- CNRS
- EuroMagNET [506239]
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A series of ultrasonic velocity measurements using both high-field pulsed and conventional superconducting magnets were used to determine the magnetic phase diagram of magnetoelectric CuFeO2 up to 53 T. The results clearly indicate a previously undetected transition at about 49 T below 10 K. Analysis of Landau-type free energy suggests that this new phase boundary is due to a spin-flop transition.
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