Spin-reorientation in ErFeO{sub 3} : zero field transitions, three-dimensional phase diagram, anisotropy of erbium magnetism.
Spontaneous spin-reorientation transitions in ErFeO{sub 3} are studied using ultrasound, magnetic susceptibility, and magnetic moment measurements. The properties of the first-order transition happening in magnetic field sweeps through zero are studied and a three-dimensional (H,T) magnetic phase diagram of the material is constructed. Direct measurements of the magnetic moment allow for a precise determination of the temperature dependence of the magnetization direction in the reorientation region. The mean-field theory of orientation transitions is modified to account for the magnetism of the erbium subsystem, and an excellent agreement with experiment is achieved.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC); FOR
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 961374
- Report Number(s):
- ANL/MSD/JA-47194; TRN: US201011%%647
- Journal Information:
- Phys. Rev. B, Vol. 69, Issue 10 ; 2004; ISSN 1098-0121
- Country of Publication:
- United States
- Language:
- ENGLISH
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