Anisotropic magnetocaloric effect and critical behavior in CrCl$_3$

Yu Liu; C. Petrovic

doi:10.1103/PhysRevB.102.014424

Anisotropic magnetocaloric effect and critical behavior in CrCl$_3$

Materials Science 2020-07-16 v1

Authors: Yu Liu , C. Petrovic

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Abstract

We report anisotropic magnetocaloric effect and magnetic critical behavior in van der Waals crystal CrCl $_3$ . The maximum magnetic entropy change $-\Delta S_M^{max} \sim 14.6$ J kg $^{-1}$ K $^{-1}$ and the relative cooling power $RCP \sim 340.3$ J kg $^{-1}$ near $T_c$ with a magnetic field change of 5 T are much larger when compared to CrI $_{3}$ or CrBr $_{3}$ . The rescaled $\Delta S_M(T,H)$ curves collapse onto a universal curve, confirming the second order ferromagnetic transition. Further critical behavior analysis around $T_c$ presents a set of critical exponents $\beta$ = 0.28(1) with $T_c$ = 19.4(2) K, $\gamma$ = 0.89(1) with $T_c$ = 18.95(8) K, and $\delta$ = 4.6(1) at $T_c$ = 19 K, which are close to those of theoretical tricritical mean field model.

Keywords

anisotropic magnetocaloric effect critical behavior crcl3 van der waals crystal magnetic entropy change ferromagnetic transition

Cite

@article{arxiv.2007.07159,
  title  = {Anisotropic magnetocaloric effect and critical behavior in CrCl$_3$},
  author = {Yu Liu and C. Petrovic},
  journal= {arXiv preprint arXiv:2007.07159},
  year   = {2020}
}

Anisotropic magnetocaloric effect and critical behavior in CrCl$_3$

Abstract

Keywords

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