Pressure effects in the itinerant antiferromagnetic metal TiAu
Abstract
In this paper, we report the pressure dependence of the Néel temperature TN up to P ≈ 27 GPa for the recently discovered itinerant antiferromagnet (IAFM) TiAu. The TN (P) phase boundary exhibits unconventional behavior in which the Néel temperature is enhanced from TN ≈ 33 K at ambient pressure to a maximum of TN ≈ 35 K occurring at P ≈ 5.5 GPa. Upon a further increase in pressure, TN is monotonically suppressed to ~22 K at P ≈ 27 GPa. We also find a crossover in the temperature dependence of the electrical resistivity ρ in the antiferromagnetic (AFM) phase that is coincident with the peak in TN(P), such that the temperature dependence of ρ = ρ0 + AnTn changes from n ≈ 3 during the enhancement of TN to n ≈ 2 during the suppression of TN. Based on an extrapolation of the TN (P) data to a possible pressure-induced quantum critical point, we estimate the critical pressure to be Pc ≈ 45 GPa.
- Authors:
-
- Univ. of California, San Diego, La Jolla, CA (United States)
- Univ. of California, San Diego, La Jolla, CA (United States); Vacuum Process Engineering, Sacramento, CA (United States)
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Rice Univ., Houston, TX (United States); Max Planck Institute for Chemical Physics of Solids, Dresden (Germany)
- Rice Univ., Houston, TX (United States)
- Univ. of Alabama at Birmingham, Birmingham, AL (United States)
- Publication Date:
- Research Org.:
- Univ. of California, San Diego, La Jolla, CA (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
- Sponsoring Org.:
- USDOE National Nuclear Security Administration (NNSA)
- OSTI Identifier:
- 1377067
- Alternate Identifier(s):
- OSTI ID: 1361927; OSTI ID: 1438760
- Report Number(s):
- LLNL-JRNL-736297
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1702812
- Grant/Contract Number:
- NA0002909; AC52-07NA27344; NA0002928; 14-ERD-041
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 21; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wolowiec, C. T., Fang, Y., McElroy, C. A., Jeffries, J. R., Stillwell, R. L., Svanidze, E., Santiago, J. M., Morosan, E., Weir, S. T., Vohra, Y. K., and Maple, M. B. Pressure effects in the itinerant antiferromagnetic metal TiAu. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.214403.
Wolowiec, C. T., Fang, Y., McElroy, C. A., Jeffries, J. R., Stillwell, R. L., Svanidze, E., Santiago, J. M., Morosan, E., Weir, S. T., Vohra, Y. K., & Maple, M. B. Pressure effects in the itinerant antiferromagnetic metal TiAu. United States. https://doi.org/10.1103/PhysRevB.95.214403
Wolowiec, C. T., Fang, Y., McElroy, C. A., Jeffries, J. R., Stillwell, R. L., Svanidze, E., Santiago, J. M., Morosan, E., Weir, S. T., Vohra, Y. K., and Maple, M. B. Wed .
"Pressure effects in the itinerant antiferromagnetic metal TiAu". United States. https://doi.org/10.1103/PhysRevB.95.214403. https://www.osti.gov/servlets/purl/1377067.
@article{osti_1377067,
title = {Pressure effects in the itinerant antiferromagnetic metal TiAu},
author = {Wolowiec, C. T. and Fang, Y. and McElroy, C. A. and Jeffries, J. R. and Stillwell, R. L. and Svanidze, E. and Santiago, J. M. and Morosan, E. and Weir, S. T. and Vohra, Y. K. and Maple, M. B.},
abstractNote = {In this paper, we report the pressure dependence of the Néel temperature TN up to P ≈ 27 GPa for the recently discovered itinerant antiferromagnet (IAFM) TiAu. The TN (P) phase boundary exhibits unconventional behavior in which the Néel temperature is enhanced from TN ≈ 33 K at ambient pressure to a maximum of TN ≈ 35 K occurring at P ≈ 5.5 GPa. Upon a further increase in pressure, TN is monotonically suppressed to ~22 K at P ≈ 27 GPa. We also find a crossover in the temperature dependence of the electrical resistivity ρ in the antiferromagnetic (AFM) phase that is coincident with the peak in TN(P), such that the temperature dependence of ρ = ρ0 + AnTn changes from n ≈ 3 during the enhancement of TN to n ≈ 2 during the suppression of TN. Based on an extrapolation of the TN (P) data to a possible pressure-induced quantum critical point, we estimate the critical pressure to be Pc ≈ 45 GPa.},
doi = {10.1103/PhysRevB.95.214403},
journal = {Physical Review B},
number = 21,
volume = 95,
place = {United States},
year = {Wed Jun 07 00:00:00 EDT 2017},
month = {Wed Jun 07 00:00:00 EDT 2017}
}
Web of Science
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Works referencing / citing this record:
Effects of chemical disorder in the itinerant antiferromagnet Ti 1− x V x Au
journal, August 2018
- Huang, C-L; Santiago, J. M.; Svanidze, E.
- Journal of Physics: Condensed Matter, Vol. 30, Issue 36