Anisotropic magnetic entropy change in
Abstract
Intrinsic, two-dimensional (2D) ferromagnetic semiconductors are an important class of materials for spintronics applications. Cr2X2Te6 ( X = Si and Ge ) semiconductors show 2D Ising-like ferromagnetism, which is preserved in few-layer devices. The maximum magnetic entropy change associated with the critical properties around the ferromagnetic transition for Cr2Si2Te6 - ΔS$$max\atop{M}$$ ~ 5.05 J kg-1 K-1 is much larger than - ΔS$$max\atop{M}$$ ~ 2.64 J kg-1 K-1 for Cr2Ge2Te6 with an out-of-plane field change of 5 T. The rescaled - ΔSM (T,H) curves collapse onto a universal curve independent of temperature and field for both materials. Here, this indicates similar critical behavior and 2D Ising magnetism, confirming the magnetocrystalline anisotropy that could preserve the long-range ferromagnetism in a few layers of Cr2X2Te6 .
- Authors:
-
- 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)
- OSTI Identifier:
- 1492783
- Alternate Identifier(s):
- OSTI ID: 1490139
- Report Number(s):
- BNL-210942-2019-JAAM
Journal ID: ISSN 2475-9953; PRMHAR
- Grant/Contract Number:
- SC0012704
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 1; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Liu, Yu, and Petrovic, C. Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge). United States: N. p., 2019.
Web. doi:10.1103/PhysRevMaterials.3.014001.
Liu, Yu, & Petrovic, C. Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge). United States. https://doi.org/10.1103/PhysRevMaterials.3.014001
Liu, Yu, and Petrovic, C. Wed .
"Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge)". United States. https://doi.org/10.1103/PhysRevMaterials.3.014001. https://www.osti.gov/servlets/purl/1492783.
@article{osti_1492783,
title = {Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge)},
author = {Liu, Yu and Petrovic, C.},
abstractNote = {Intrinsic, two-dimensional (2D) ferromagnetic semiconductors are an important class of materials for spintronics applications. Cr2X2Te6 ( X = Si and Ge ) semiconductors show 2D Ising-like ferromagnetism, which is preserved in few-layer devices. The maximum magnetic entropy change associated with the critical properties around the ferromagnetic transition for Cr2Si2Te6 - ΔS$max\atop{M}$ ~ 5.05 J kg-1 K-1 is much larger than - ΔS$max\atop{M}$ ~ 2.64 J kg-1 K-1 for Cr2Ge2Te6 with an out-of-plane field change of 5 T. The rescaled - ΔSM (T,H) curves collapse onto a universal curve independent of temperature and field for both materials. Here, this indicates similar critical behavior and 2D Ising magnetism, confirming the magnetocrystalline anisotropy that could preserve the long-range ferromagnetism in a few layers of Cr2X2Te6 .},
doi = {10.1103/PhysRevMaterials.3.014001},
journal = {Physical Review Materials},
number = 1,
volume = 3,
place = {United States},
year = {Wed Jan 09 00:00:00 EST 2019},
month = {Wed Jan 09 00:00:00 EST 2019}
}
Web of Science
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