Campus Units
Physics and Astronomy, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
7-1-2012
Journal or Book Title
Physical Review B
Volume
86
Issue
1
First Page
014422
DOI
10.1103/PhysRevB.86.014422
Abstract
We use high-pressure magnetic x-ray diffraction and numerical simulation to determine the low-temperature magnetic phase diagram of stoichiometric CeFe2. Near 1.5 GPa we find a transition from ferromagnetism to antiferromagnetism, accompanied by a rhombohedral distortion of the cubic Laves crystal lattice. By comparing pressure and chemical substitution we find that the phase transition is controlled by a shift of magnetic frustration from the Ce-Ce to the Fe-Fe sublattice. Notably the dominant Ce-Fe magnetic interaction, which sets the temperature scale for the onset of long-range order, remains satisfied throughout the phase diagram but does not determine the magnetic ground state. Our results illustrate the complexity of a system with multiple competing magnetic energy scales and lead to a general model for magnetism in cubic Laves phase intermetallic compounds.
Copyright Owner
American Physical Society
Copyright Date
2012
Language
en
File Format
application/pdf
Recommended Citation
Wang, Jiyang; Feng, Yejun; Jaramillo, R.; van Wezel, Jasper; Canfield, Paul C.; and Rosenbaum, T. F., "Pressure tuning of competing magnetic interactions in intermetallic CeFe2" (2012). Physics and Astronomy Publications. 643.
https://lib.dr.iastate.edu/physastro_pubs/643
Comments
This article is published as Wang, Jiyang, Yejun Feng, R. Jaramillo, Jasper van Wezel, Paul C. Canfield, and T. F. Rosenbaum. "Pressure tuning of competing magnetic interactions in intermetallic CeFe 2." Physical Review B 86, no. 1 (2012): 014422. DOI: 10.1103/PhysRevB.86.014422. Posted with permission.