Magnetic order in the chemically substituted frustrated antiferromagnet CsCrF 4
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Date
2020-11-24
Journal Title
Journal ISSN
Volume Title
Publisher
American Physical Society
Abstract
The effect of chemical substitution on the ground state of the geometrically frustrated antiferromagnet
CsCrF4 has been investigated through a neutron powder diffraction experiment. Magnetic Fe-substituted
CsCr0.94Fe0.06F4 and nonmagnetic Al-substituted CsCr0.98Al0.02F4 samples are measured, and magnetic Bragg peaks are clearly observed in both samples. Magnetic structure analysis revealed a 120∘ structure having a magnetic propagation vector kmag=(0,0,1/2) in CsCr0.94Fe0.06F4. For CsCr0.98Al0.02F4, a quasi-
120∘ structure having kmag=(1/2,0,1/2) is formed. It is notable that the identified magnetic structure in CsCr
0.94Fe0.06F4 belongs to a different phase of ground states from those in CsCr0.98Al0.02F4 and the parent CsCrF4. These results suggest that the Fe substitution strongly influences the ground state of CsCrF4.©2020 American Physical Society
Description
Keywords
Neutron diffraction, Antiferromagnetism, Magnetization, Magnetic properties, Ground states, Bragg curve
Citation
Hayashida, S., Hagihala, M., Avdeev, M., Miura, Y., Manaka, H., & Masuda, T. (2020). Magnetic order in the chemically substituted frustrated antiferromagnet CsCrF4. Physical Review B, 102(17), 174440. doi:10.1103/PhysRevB.102.174440