2022
DOI: 10.1039/d2tc03711d
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Novel two-dimensional ferromagnetic materials CrX2 (X = O, S, Se) with high Curie temperature

Abstract: Two-dimensional (2D) intrinsic ferromagnetic (FM) materials with high Curie temperature (TC), half-metallicity, and ferroelasticity are promising for applications in spintronic devices. We propose a kind of new 2D CrX2 (X...

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Cited by 24 publications
(16 citation statements)
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“…The same phenomenon happens in the CrX 2 (X= O, S, Se) system. 61 The calculated exchange energy of CrSe 2 is smaller than that of CrO 2 , so CrSe 2 has a smaller J value than CrO 2 , but the calculated T C is higher. All things considered, the reason for this is that CrSe 2 has a larger total magnetic moment than CrO 2 .…”
Section: Resultsmentioning
confidence: 84%
“…The same phenomenon happens in the CrX 2 (X= O, S, Se) system. 61 The calculated exchange energy of CrSe 2 is smaller than that of CrO 2 , so CrSe 2 has a smaller J value than CrO 2 , but the calculated T C is higher. All things considered, the reason for this is that CrSe 2 has a larger total magnetic moment than CrO 2 .…”
Section: Resultsmentioning
confidence: 84%
“…This arrangement is conducive to the realization of unipolar magnetic semiconductors by either electron or hole doping. 12,33…”
Section: Resultsmentioning
confidence: 99%
“…[1][2][3][4][5] Since the discovery of ferromagnetism in 2D Cr 2 Ge 2 Te 6 6 and CrI 3 , 7 a great deal of scientific effort has been devoted to the study of 2D magnetic materials both experimentally and theoretically. [8][9][10][11][12][13][14] However, despite a tidal wave of theoretical predictions and experimental studies claiming to find versatile and high Curie temperature (T C ) 2D magnetic materials, the scarcity and rather low T C of 2D intrinsic ferromagnets 1 are the fundamental obstacles to their practical applications in spintronics. Further exploration of 2D multifunctional magnetic materials at high Curie temperatures is urgent.…”
Section: Introductionmentioning
confidence: 99%
“…44 On the other hand, several new CrX 2 (X = O, S, Se) orthorhombic monolayers are predicted to exhibit intrinsic ferromagnetism, high T C , and magnetoelastic coupling. 45 Furthermore, several 2D Janus Cr-based TMDs, namely CrXY (X a Y = S, Se, and Te), with 1T and 2H phases, are predicted to have a large Rashba spin splitting, piezoelectric response, and inherent ferromagnetism. 41,46,47 Taking this into account, new Janus Cr-based dichalcogenides have a reasonable expectation of becoming ferromagnets with interesting properties.…”
Section: Introductionmentioning
confidence: 99%