Magnetic anisotropy and entropy change in trigonal Cr5Te8

Liu, Yu; Abeykoon, Milinda; Stavitski, Eli; Attenkofer, Klaus; Petrovic, C.

doi:10.1103/PhysRevB.100.245114

Title: Magnetic anisotropy and entropy change in trigonal ${Cr}_{5} {Te}_{8}$

Journal Article · 09 December 2019 · Physical Review B

DOI: https://doi.org/10.1103/PhysRevB.100.245114 · OSTI ID:1581517

^[1]; Abeykoon, Milinda ^[1];

^[1]; Attenkofer, Klaus ^[1]; Petrovic, C. ^[1]

Brookhaven National Lab. (BNL), Upton, NY (United States)

We present a comprehensive investigation of the anisotropic magnetic and magnetocaloric properties of quasi-two-dimensional weak itinerant ferromagnet trigonal Cr₅Te₈ single crystals. Magnetic-anisotropy-induced satellite transition T* is observed at low fields applied parallel to the ab plane below the Curie temperature (T_c ~ 230K). T* is featured by an anomalous magnetization downturn, similar to that in structurally related CrI₃, which possibly stems from an in-plane antiferromagnetic alignment induced by out-of-plane ferromagnetic spins canting. Magnetocrystalline anisotropy is also reflected in magnetic entropy change ΔS_M(T,H) and relative cooling power. Furthermore, given the high Curie temperature, Cr₅Te₈ crystals are materials of interest for nanofabrication in basic science and applied technology.

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Research Organization:: Brookhaven National Laboratory (BNL), Upton, NY (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Scientific User Facilities Division

Grant/Contract Number:: SC0012704

OSTI ID:: 1581517

Report Number(s):: BNL--212503-2020-JAAM

Journal Information:: Physical Review B, Journal Name: Physical Review B Journal Issue: 24 Vol. 100; ISSN 2469-9950; ISSN PRBMDO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

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