Critical behavior and magnetocaloric effect in
Abstract
Here, the critical properties and magnetocaloric effect of semiconducting ferrimagnet Mn3Si2Te6 single crystals have been investigated by bulk magnetization and heat capacity around Tc. Critical exponents β = 0.41 ± 0.01 with a critical temperature Tc = 74.18 ± 0.08 K and γ = 1.21 ± 0.02 with Tc = 74.35 ± 0.05 K are deduced by the Kouvel-Fisher plot, whereas δ = 4.29 ± 0.05 (3.40 ± 0.02) is obtained by a critical isotherm analysis at T = 74(75)K. The magnetic exchange distance is found to decay as J (r) ≈ r-4.79, which lies between the mean-field and 3D Heisenberg models. Moreover, the magnetic entropy change -ΔSM features a maximum at Tc, i.e., -ΔS$$max\atop{M}$$ ~ 2.53 (1.67) J kg-1 K-1 with in-plane (out-of-plane) field change of 5 T, confirming large magnetic anisotropy. The heat capacity measurement further gives -ΔS$$max\atop{M}$$ ~ 2.94 J kg-1 K-1 and the corresponding adiabatic temperature change ΔTad ~ 1.14 K with out-of-plane field change of 9 T.
- Authors:
-
[1];
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
- Publication Date:
- Research Org.:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
- OSTI Identifier:
- 1476290
- Alternate Identifier(s):
- OSTI ID: 1466855
- Report Number(s):
- BNL-209124-2018-JAAM
Journal ID: ISSN 2469-9950; PRBMDO
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 98; Journal Issue: 6; 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; 36 MATERIALS SCIENCE; magnetism
Citation Formats
Liu, Yu, and Petrovic, C. Critical behavior and magnetocaloric effect in Mn3Si2Te6. United States: N. p., 2018.
Web. doi:10.1103/PhysRevB.98.064423.
Liu, Yu, & Petrovic, C. Critical behavior and magnetocaloric effect in Mn3Si2Te6. United States. doi:https://doi.org/10.1103/PhysRevB.98.064423
Liu, Yu, and Petrovic, C. Mon .
"Critical behavior and magnetocaloric effect in Mn3Si2Te6". United States. doi:https://doi.org/10.1103/PhysRevB.98.064423. https://www.osti.gov/servlets/purl/1476290.
@article{osti_1476290,
title = {Critical behavior and magnetocaloric effect in Mn3Si2Te6},
author = {Liu, Yu and Petrovic, C.},
abstractNote = {Here, the critical properties and magnetocaloric effect of semiconducting ferrimagnet Mn3Si2Te6 single crystals have been investigated by bulk magnetization and heat capacity around Tc. Critical exponents β = 0.41 ± 0.01 with a critical temperature Tc = 74.18 ± 0.08 K and γ = 1.21 ± 0.02 with Tc = 74.35 ± 0.05 K are deduced by the Kouvel-Fisher plot, whereas δ = 4.29 ± 0.05 (3.40 ± 0.02) is obtained by a critical isotherm analysis at T = 74(75)K. The magnetic exchange distance is found to decay as J (r) ≈ r-4.79, which lies between the mean-field and 3D Heisenberg models. Moreover, the magnetic entropy change -ΔSM features a maximum at Tc, i.e., -ΔS$max\atop{M}$ ~ 2.53 (1.67) J kg-1 K-1 with in-plane (out-of-plane) field change of 5 T, confirming large magnetic anisotropy. The heat capacity measurement further gives -ΔS$max\atop{M}$ ~ 2.94 J kg-1 K-1 and the corresponding adiabatic temperature change ΔTad ~ 1.14 K with out-of-plane field change of 9 T.},
doi = {10.1103/PhysRevB.98.064423},
journal = {Physical Review B},
number = 6,
volume = 98,
place = {United States},
year = {2018},
month = {8}
}
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