Anisotropic magnetic entropy change in
Journal Article
·
· Physical Review Materials
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
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 .
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1492783
- Alternate ID(s):
- OSTI ID: 1490139
- Report Number(s):
- BNL-210942-2019-JAAM
- Journal Information:
- Physical Review Materials, Journal Name: Physical Review Materials Journal Issue: 1 Vol. 3; ISSN PRMHAR; ISSN 2475-9953
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two-dimensional ordering and collective magnetic excitations in the dilute ferromagnetic topological insulator
Influence of magnetism on Dirac semimetallic behavior in nonstoichiometric
Highly anisotropic exchange interactions of iridium moments on the fcc lattice in
Journal Article
·
Sat Jun 01 00:00:00 UTC 2019
· Physical Review B
·
OSTI ID:1545207
Influence of magnetism on Dirac semimetallic behavior in nonstoichiometric
Journal Article
·
Tue Nov 05 00:00:00 UTC 2019
· Physical Review B
·
OSTI ID:1607177
Highly anisotropic exchange interactions of iridium moments on the fcc lattice in
Journal Article
·
Mon Jun 20 00:00:00 UTC 2016
· Physical Review B
·
OSTI ID:1260071