Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge)

Liu, Yu; Petrovic, C.

doi:10.1103/PhysRevMaterials.3.014001

Title: Anisotropic magnetic entropy change in ${Cr}_{2} X_{2} {Te}_{6} (X = Si and Ge)$

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 - ΔS_M(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:

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

Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.

Publication Date:: Wed Jan 09 00:00:00 EST 2019

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.

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                    Liu, Yu, & Petrovic, C. Anisotropic magnetic entropy change in Cr2X2Te6(X=Siand Ge).  United States.  https://doi.org/10.1103/PhysRevMaterials.3.014001

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                    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.

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@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}

}

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Title: Anisotropic magnetic entropy change in Cr 2 X 2 Te 6 ( X = Si and Ge )

Abstract

Citation Formats

Anisotropic magnetocaloric effect in single crystals of CrI 3 journal, May 2018

Detailed Magnetic Behavior of Nickel Near its Curie Point journal, December 1964

Magnetic behavior and spin-lattice coupling in cleavable van der Waals layered CrCl 3 crystals journal, June 2017

Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change journal, November 2006

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Magnetic structure of the new layered ferromagnetic chromium hexatellurosilicate Cr2Si2Te6 journal, March 1991

Scaling laws for the magnetocaloric effect in second order phase transitions: From physics to applications for the characterization of materials journal, May 2010

Classical Theory of the Temperature Dependence of Magnetic Anisotropy Energy journal, December 1954

Magnetic correlations in the quasi-two-dimensional semiconducting ferromagnet CrSiTe 3 journal, October 2015

Magnetic anisotropy of the single-crystalline ferromagnetic insulator Cr 2 Ge 2 Te 6 journal, February 2016

Temperature Dependence of Ferromagnetic Anisotropy journal, March 1958

Electrical control of 2D magnetism in bilayer CrI3 journal, April 2018

Electronic Structure, Chemical Bonding, and Jahn-Teller Distortions in CdPS3 journal, March 1995

Coupling of Crystal Structure and Magnetism in the Layered, Ferromagnetic Insulator CrI 3 journal, January 2015

2D Ising-Like Ferromagnetic Behaviour for the Lamellar Cr 2 Si 2 Te 6 Compound: A Neutron Scattering Investigation journal, January 1995

Recent Developments in Magnetic Refrigeration journal, July 1999

Tricritical behavior of the two-dimensional intrinsically ferromagnetic semiconductor CrGeTe 3 journal, June 2017

Critical behavior of the ferromagnetic perovskites RTiO 3 ( R = Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements journal, May 2013

The influence of a minority magnetic phase on the field dependence of the magnetocaloric effect journal, May 2009

Crystallographic, magnetic and electronic structures of a new layered ferromagnetic compound Cr 2 Ge 2 Te 6 journal, January 1995

Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit journal, June 2017

Synthesis and crystal structure of a new layered phase: The chromium hexatellurosilicate Cr2Si2Te6 journal, March 1988

The theory of equilibrium critical phenomena journal, July 1967

Ferromagnetic Order, Strong Magnetocrystalline Anisotropy, and Magnetocaloric Effect in the Layered Telluride Fe 3−δ GeTe 2 journal, August 2015

Critical behavior at paramagnetic to ferromagnetic phase transition in Pr 0.5 Sr 0.5 MnO 3 : A bulk magnetization study journal, June 2009

Strong spin-lattice coupling in CrSiTe 3 journal, April 2015

Magnetic cooling near Curie temperatures above 300 K journal, June 1984

Ligand-field helical luminescence in a 2D ferromagnetic insulator journal, December 2017

Ferromagnetic Resonance in CrBr 3 journal, March 1962

The Magnetic Phase Transition in Amorphous and Disordered Crystalline Ferromagnets journal, November 1987

The theory of equilibrium critical phenomena journal, January 1968

Discovery of Intrinsic Ferromagnetism in Two-Dimensional van der Waals Crystals conference, January 2017

Absence of Ferromagnetism or Antiferromagnetism in One- or Two-Dimensional Isotropic Heisenberg Models journal, December 1966

Layer-dependent Ferromagnetism in a van der Waals Crystal down to the Monolayer Limit text, January 2017

Electrical Control of 2D Magnetism in Bilayer CrI3 text, January 2018

Magnetic Entropy Scaling in Ferromagnetic Semiconductor CrGeTe 3 journal, June 2019

Anisotropic magnetoresistance behaviors in the layered ferromagnetic Cr 2 Ge 2 Te 6 journal, October 2019

Magnetic entropy change of ErAl 2 magnetocaloric wires fabricated by a powder-in-tube method journal, December 2019

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Title: Anisotropic magnetic entropy change in ${Cr}_{2} X_{2} {Te}_{6} (X = Si and Ge)$

Anisotropic magnetocaloric effect in single crystals of ${CrI}_{3}$
journal, May 2018

Detailed Magnetic Behavior of Nickel Near its Curie Point
journal, December 1964

Magnetic behavior and spin-lattice coupling in cleavable van der Waals layered ${CrCl}_{3}$ crystals
journal, June 2017

Field dependence of the magnetocaloric effect in materials with a second order phase transition: A master curve for the magnetic entropy change
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Discovery of intrinsic ferromagnetism in two-dimensional van der Waals crystals
journal, April 2017

Magnetic structure of the new layered ferromagnetic chromium hexatellurosilicate Cr2Si2Te6
journal, March 1991

Scaling laws for the magnetocaloric effect in second order phase transitions: From physics to applications for the characterization of materials
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Classical Theory of the Temperature Dependence of Magnetic Anisotropy Energy
journal, December 1954

Magnetic correlations in the quasi-two-dimensional semiconducting ferromagnet ${CrSiTe}_{3}$
journal, October 2015

Magnetic anisotropy of the single-crystalline ferromagnetic insulator Cr ₂ Ge ₂ Te ₆
journal, February 2016

Temperature Dependence of Ferromagnetic Anisotropy
journal, March 1958

Electrical control of 2D magnetism in bilayer CrI3
journal, April 2018

Electronic Structure, Chemical Bonding, and Jahn-Teller Distortions in CdPS3
journal, March 1995

Coupling of Crystal Structure and Magnetism in the Layered, Ferromagnetic Insulator CrI ₃
journal, January 2015

2D Ising-Like Ferromagnetic Behaviour for the Lamellar Cr ₂ Si ₂ Te ₆ Compound: A Neutron Scattering Investigation
journal, January 1995

Recent Developments in Magnetic Refrigeration
journal, July 1999

Tricritical behavior of the two-dimensional intrinsically ferromagnetic semiconductor ${CrGeTe}_{3}$
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Critical behavior of the ferromagnetic perovskites RTiO $_{3}$ ( $R$ $=$ Dy, Ho, Er, Tm, Yb) by magnetocaloric measurements
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The influence of a minority magnetic phase on the field dependence of the magnetocaloric effect
journal, May 2009

Crystallographic, magnetic and electronic structures of a new layered ferromagnetic compound Cr ₂ Ge ₂ Te ₆
journal, January 1995

Layer-dependent ferromagnetism in a van der Waals crystal down to the monolayer limit
journal, June 2017

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journal, March 1988

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journal, July 1967

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journal, November 1987

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journal, January 1968

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journal, December 1966

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text, January 2018

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journal, October 2019

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journal, September 2019

Tunable band gap and enhanced ferromagnetism by surface adsorption in monolayer ${Cr}_{2} {Ge}_{2} {Te}_{6}$
journal, June 2019

Electronic structure and magnetic properties of few-layer Cr$_2$Ge$_2$Te$_6$: the key role of nonlocal electron-electron interaction effects
text, January 2019

Magnetic entropy change of ErAl2 magnetocaloric wires fabricated by a powder-in-tube method
text, January 2020