Tricritical Point of the f-Electron Antiferromagnet USb2 Driven by High Magnetic Fields

Published

January 12, 2017

Author(s)

Ryan L. Stillwell, I Lin NMN Liu, N. Harrison, M. Jaime, J. R. Jeffries, Nicholas Butch

Abstract

In pulsed magnetic fields up to 65T and at temperatures below the Neel transition, our magnetization and magnetostriction measurements reveal a field-induced metamagnetic-like transition that is suggestive of an antiferromagnetic to polarized paramagnetic or ferrimagnetic ordering. Our data also suggests a change in the nature of this metamagnetic-like transition from second- to first-order-like near a tricritical point at T_tc 145K and H_c52T. At high fields for H>H_c we found a decreased magnetic moment roughly half of the moment reported in low field measurements. We propose that f-p hybridization effects and magnetoelastic interactions drive the decreased moment, lack of saturation at high fields, and the decreased phase boundary.

Citation

Physical Review B

Volume

95

Issue

1

Pub Type

Journals

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Keywords

high field

Citation

Stillwell, R. , Liu, I. , Harrison, N. , Jaime, M. , Jeffries, J. and Butch, N. (2017), Tricritical Point of the f-Electron Antiferromagnet USb₂ Driven by High Magnetic Fields, Physical Review B, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=922087 (Accessed October 10, 2024)