Pressure-induced suppression of ferromagnetism in the itinerant ferromagnet LaCrSb3

Z. E. Brubaker, J. S. Harvey, J. R. Badger, R. R. Ullah, D. J. Campbell, Y. Xiao, P. Chow, C. Kenney-Benson, J. S. Smith, C. Reynolds, J. Paglione, R. J. Zieve, J. R. Jeffries, V. Taufour

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3 Scopus citations

Abstract

We have performed an extensive pressure-dependent structural, spectroscopic, and electrical transport study of LaCrSb3. The ferromagnetic phase (TC=120 K at p = 0 GPa) is fully suppressed by p = 26.5 GPa and the Cr moment decreases steadily with increasing pressure. The unit-cell volume decreases smoothly up to p = 55 GPa. We find that the bulk modulus and suppression of the magnetism are in good agreement with theoretical predictions, but the Cr moment decreases smoothly with pressure, in contrast to steplike drops predicted by theory. The ferromagnetic ordering temperature appears to be driven by the Cr moment.

Original languageEnglish
JournalPhysical Review B
Volume101
Issue number21
DOIs
StatePublished - Jun 1 2020

Funding

The authors thank Feng Zhang and Kai-Ming Ho for fruitful discussion. This work was performed under LDRD (Tracking Code 18-SI-001) and under the auspices of the US Department of Energy by Lawrence Livermore National Laboratory (LLNL) under Contract No. DE-AC52-07NA27344. Partial funding was provided through the LLNL Livermore Graduate Scholar Program. Portions of this work were performed at HPCAT (Sector 16), Advanced Photon Source (APS), Argonne National Laboratory. HPCAT operations are supported by DOE-NNSA's Office of Experimental Sciences. The Advanced Photon Source is a US Department of Energy (DOE) Office of Science User Facility operated for the DOE Office of Science by Argonne National Laboratory under Contract No. DE-AC02-06CH11357. This material is based upon work supported by the National Science Foundation under Grant No. NSF DMR-1609855. D.J.C. acknowledges the support of the US Department of Energy, Office of Science, Office of Workforce Development for Teachers and Scientists, Office of Science Graduate Student Research program, administered by the Oak Ridge Institute for Science and Education for the DOE under Contract No. DE-SC0014664. J.P. and D.J.C. acknowledge support from the National Science Foundation Grant No. DMR-1905891, and the Gordon and Betty Moore Foundation's EPiQS Initiative through Grant No. GBMF9071. ORNL is managed by UT-Battelle, LLC, under Contract No. DE-AC05-00OR22725 for the U.S. Department of Energy.

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