Magnetocaloric effect of gadolinium in high magnetic fields
Abstract
The magnetocaloric effect of gadolinium has been inspected directly in pulsed magnetic fields up to 62 T. The maximum observed adiabatic temperature change is ΔTad = 60.5 K, the initial temperature T0 being just above 300 K. The field dependence of ΔTad is found to follow the usual H2/3 law, with a small correction in H4/3. Yet, as H is increased, a radical change is observed in the dependence of ΔTad on T0, at H = const. The familiar caret-shaped peak situated at T0 = TC becomes distinctly asymmetric, its high-temperature slope becoming more gentle and evolving into a broad plateau. For yet higher magnetic fields, μ0H ≳ 140 T, calculations predict a complete disappearance of the maximum near TC and an emergence of a new very broad maximum far above TC.
- Authors:
-
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany)
- Aix-Marseille Université, Marseille (Germany)
- Technische Universität Darmstadt, Darmstadt (Germany)
- Ames Lab. and Iowa State Univ., Ames, IA (United States)
- Helmholtz-Zentrum Dresden-Rossendorf (HZDR), Dresden (Germany); Technische Universität, Dresden (Germany)
- Publication Date:
- Research Org.:
- Ames Laboratory (AMES), Ames, IA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1514889
- Alternate Identifier(s):
- OSTI ID: 1507805
- Report Number(s):
- IS-J-9935
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- SPP 1599; HRSF-0045; AC02-07CH11358
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 99; Journal Issue: 13; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Gottschall, T., Kuz'min, M. D., Skokov, K. P., Skourski, Y., Fries, M., Gutfleisch, O., Zavareh, M. Ghorbani, Schlagel, D. L., Mudryk, Y., Pecharsky, V., and Wosnitza, J. Magnetocaloric effect of gadolinium in high magnetic fields. United States: N. p., 2019.
Web. doi:10.1103/PhysRevB.99.134429.
Gottschall, T., Kuz'min, M. D., Skokov, K. P., Skourski, Y., Fries, M., Gutfleisch, O., Zavareh, M. Ghorbani, Schlagel, D. L., Mudryk, Y., Pecharsky, V., & Wosnitza, J. Magnetocaloric effect of gadolinium in high magnetic fields. United States. https://doi.org/10.1103/PhysRevB.99.134429
Gottschall, T., Kuz'min, M. D., Skokov, K. P., Skourski, Y., Fries, M., Gutfleisch, O., Zavareh, M. Ghorbani, Schlagel, D. L., Mudryk, Y., Pecharsky, V., and Wosnitza, J. Fri .
"Magnetocaloric effect of gadolinium in high magnetic fields". United States. https://doi.org/10.1103/PhysRevB.99.134429. https://www.osti.gov/servlets/purl/1514889.
@article{osti_1514889,
title = {Magnetocaloric effect of gadolinium in high magnetic fields},
author = {Gottschall, T. and Kuz'min, M. D. and Skokov, K. P. and Skourski, Y. and Fries, M. and Gutfleisch, O. and Zavareh, M. Ghorbani and Schlagel, D. L. and Mudryk, Y. and Pecharsky, V. and Wosnitza, J.},
abstractNote = {The magnetocaloric effect of gadolinium has been inspected directly in pulsed magnetic fields up to 62 T. The maximum observed adiabatic temperature change is ΔTad = 60.5 K, the initial temperature T0 being just above 300 K. The field dependence of ΔTad is found to follow the usual H2/3 law, with a small correction in H4/3. Yet, as H is increased, a radical change is observed in the dependence of ΔTad on T0, at H = const. The familiar caret-shaped peak situated at T0 = TC becomes distinctly asymmetric, its high-temperature slope becoming more gentle and evolving into a broad plateau. For yet higher magnetic fields, μ0H ≳ 140 T, calculations predict a complete disappearance of the maximum near TC and an emergence of a new very broad maximum far above TC.},
doi = {10.1103/PhysRevB.99.134429},
journal = {Physical Review B},
number = 13,
volume = 99,
place = {United States},
year = {Fri Apr 19 00:00:00 EDT 2019},
month = {Fri Apr 19 00:00:00 EDT 2019}
}
Web of Science
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