Brubaker, Z.
, Xiao, Y.
, Chow, P.
, Kenney-Benson, C.
, Smith, J.
, Cynn, H.
, Reynolds, C.
, Butch, N.
, Zieve, R.
and Jeffries, J.
(2020),
Valence Instability Across the Magnetostructural Transition in USb<sub>2</sub>, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=928068
(Accessed April 26, 2024)
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Valence Instability Across the Magnetostructural Transition in USb2
Published
Author(s)
Z. E. Brubaker, Y. Xiao, P. Chow, C. Kenney-Benson, J. S. Smith, H. Cynn, C. Reynolds, , R. J. Zieve, J. R. Jeffries
Abstract
We have performed pressure dependent X-ray diffraction and resonant X-ray emission spectroscopy experiments on USb2 to further characterize the AFM-FM transition occuring near 8 GPa. We have found the magnetic transition coincides with a tetragonal to orthorhombic transition resulting in a 17% volume collapse as well as a transient f-occupation enhancement. With increasing atomic size, the UX2 structure shows a decreasing bulk modulus and transition pressure, and an increasing volume collapse at the structural transition. Except for an enhancement across the transition region, the f-occupancy decreases steadily from 1.96 to 1.75.Citation
Physical Review B
Volume
101
Issue
8
Pub Type
Journals
Download Paper
Keywords
X-ray absorption spectroscopy, valence, antiferromagnet
Citation
Created February 13, 2020, Updated October 12, 2021