Prediction of manganese trihalides as two-dimensional Dirac half-metals

Sun, Qilong; Kioussis, Nicholas

doi:10.1103/physrevb.97.094408

Cited by 133 publications

(110 citation statements)

References 35 publications

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“…Table 1 Table 1). TMT (Transition Metal Trichalcogenides) [41][42][43][44][45] , TMD (Transition Metal Dichalcogenides) [46][47][48]75 , TH (Tri-Halides) [49][50][51][52]76 , DH (Di-Halides) 53 Huang and colleagues demonstrated the intrinsic FM in a mono layer of CrI 3 with a suppressed T c of 45 K 4 , which they explain based on Ising exchange interaction. Interestingly they also observe a strong dependence of the ferromagnetism in CrI 3 on the number of layers as can be seen in figure 2.…”

Section: Proposed 2d Ferromagnetic Materials and Their Experimenmentioning

confidence: 99%

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Shabbir

Nadeem

Dai

et al. 2018

Applied Physics Reviews

139

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The inherent susceptibility of low-dimensional materials to thermal fluctuations has long been expected to poses a major challenge to achieving intrinsic long-range ferromagnetic order in two-dimensional materials. The recent explosion of interest in atomically thin materials and their assembly into van der Waals heterostructures has renewed interest in two-dimensional ferromagnetism, which is interesting from a fundamental scientific point of view and also offers a missing ingredient necessary for the realization of spintronic functionality in van der Waals heterostructures. Recently several atomically thin materials have been shown to be robust ferromagnets. Such ferromagnetism is thought to be enabled by magneto crystalline anisotropy which suppresses thermal fluctuations. In this article, we review recent progress in two-dimensional ferromagnetism in detail and predict new possible two-dimensional ferromagnetic materials. We also discuss the prospects for applications of atomically thin ferromagnets in novel dissipationless electronics, spintronics, and other conventional magnetic technologies. Particularly atomically thin ferromagnets are promising to realize time reversal symmetry breaking in two-dimensional topological systems,

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Section: Proposed 2d Ferromagnetic Materials and Their Experimenmentioning

confidence: 99%

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Shabbir

Nadeem

Dai

et al. 2018

Applied Physics Reviews

139

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“…Ge 2 Te 6 of the telluride family. 27,28 Several of the transition metal tri-halides such as CrX 3 , 29,30 OsCl 3 , 31 VCl 3 , 32,33 NiCl 3 , 34 RuX 3 , 35-38 and MnX 3 (X = F, Cl, Br,I)39 are also expected to have either a ferromagnetic or an anti-ferromagnetic ground state described by…”

mentioning

confidence: 99%

Intrinsic magnetism in monolayer transition metal trihalides: A comparative study

Tomar

Ghosh

Mardanya

et al. 2019

Journal of Magnetism and Magnetic Materials

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Two dimensional magnetic materials, with tunable electronic properties could lead to new spintronic, magnetic and magneto-optic applications. Here, we explore intrinsic magnetic ordering in two dimensional monolayers of transition metal tri-halides (MX 3 , M = V, Cr, Mn, Fe and Ni, and X = F, Cl, Br and I), using density functional theory. We find that other than FeX 3 family which has an anti-ferromagnetic ground state, rest of the trihalides are ferromagnetic. Amongst these the VX 3 and NiX 3 family are found to have the highest magnetic transition temperature, beyond the room temperature. In terms of electronic properties, the tri-halides of Mn and Ni are either half metals or Dirac half metals, while the tri-halides of V, Fe and Cr are insulators. Among all the trihalides studied in this paper, we find the existence of very clean spin polarized Dirac half metallic state in MnF 3 , MnCl 3 , MnBr 3 , NiF 3 and NiCl 3 . These spin polarized Dirac half metals will be immensely useful for spin-current generation and other spintronic applications. arXiv:1905.13677v1 [cond-mat.mtrl-sci]

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“…Transition metal (TM) halides are one big class of the theoretical predicted monolayer ferromagnets. [ 91‐96 ] In TM halides, the nearest neighbor exchange interaction is determined by the competition of direct exchange interaction with superexchange interaction mediated by halogen anions. [ 91,92 ] The strength and sign of these interactions strongly depends on the orbital occupation, namely electronic configuration of the TM atoms.…”

Section: Low Dimensional Theory For Magnetizationmentioning

confidence: 99%

“…[ 110 ] Monolayer TM trihalides are possible candidates for exhibiting Dirac half metalicity because of their graphene‐like honeycomb lattice. Sun and Kioussis [ 95 ] predicted that monolayer MnX 3 (X═F, Cl, Br, I) are Dirac half metal. The Fermi velocity of MnX 3 is about 10 5 m s −1[ 95 ] which is very close to 10 6 m s −1 in graphene.…”

Section: Low Dimensional Theory For Magnetizationmentioning

confidence: 99%

Prospects and Opportunities of 2D van der Waals Magnetic Systems

et al. 2020

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The existence of spontaneous magnetization in low dimensional magnetic systems has attracted intensive studies since the early 60s and research remains very active even now. Only recently, magnetic van der Waals (vdW) systems down to a few layers have been broadly discussed for their magnetic order ground states at finite temperature. The naturally inherited layered structure of the vdW magnetic systems possessing onsite magnetic anisotropy from band electrons can suppress the long-range fluctuations. This provides an excellent vehicle to study the transition of magnetism to 2D limits both theoretically and experimentally. Here the current status of 2D vdW magnetic system and its potential applications are briefly summarized and discussed.

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Prediction of manganese trihalides as two-dimensional Dirac half-metals

Cited by 133 publications

References 35 publications

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Long range intrinsic ferromagnetism in two dimensional materials and dissipationless future technologies

Intrinsic magnetism in monolayer transition metal trihalides: A comparative study

Prospects and Opportunities of 2D van der Waals Magnetic Systems

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