Strongly coupled electronic, magnetic, and lattice degrees of freedom in LaCo5 under pressure
In this study, we have performed high-pressure magnetotransport and x-ray diffraction measurements on ferromagnetic LaCo5, confirming the theoretically predicted electronic topological transition driving the magnetoelastic collapse seen in the related compound YCo5. Our x-ray diffraction results show an anisotropic lattice collapse of the c axis near 10 GPa that is also commensurate with a change in the majority charge carriers evident from high-pressure Hall effect measurements. The coupling of the electronic, magnetic, and lattice degrees of freedom is further substantiated by the evolution of the anomalous Hall effect, which couples to the magnetization of the ordered state of LaCo5.
- Authors:
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[1]
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- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Univ. of Alabama at Birmingham, Birmingham, AL (United States)
- Publication Date:
- Report Number(s):
- LLNL-JRNL-672877
Journal ID: ISSN 1098-0121; PRBMDO
- Grant/Contract Number:
- AC52-07NA27344; 12-ERD-013; 14-ERD-041; AC52- 07NA27344; NA0001974; FG02-99ER45775; NA0002014; NA0002006
- Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 92; Journal Issue: 17; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Research Org:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Carnegie Institution of Washington, Washington, D.C. (United States)
- Sponsoring Org:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
- OSTI Identifier:
- 1251069
- Alternate Identifier(s):
- OSTI ID: 1227081; OSTI ID: 1335498
- Free Publicly Accessible Full Text
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Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1103/PhysRevB.92.174421