Anomalous Hall effect mechanisms in the quasi-two-dimensional van der Waals ferromagnet 
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Cai, Ranran; Xing, Wenyu; Zhou, Huibin; Li, Boning; Chen, Yangyang; Yao, Yuan; Ma, Yang; Xie, X. C.; Jia, Shuang; Han, Wei

doi:10.1103/physrevb.100.054430

Cited by 15 publications

(3 citation statements)

References 53 publications

(67 reference statements)

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“…were used to fabricate devices for transport measurements. 11,102,108,109 Their properties were overall quite similar to the bulk analogues, but the magnetic behavior of thinner samples closer to the two-dimensional (2D) limit has not been reported until very recently. 110 Since magnetocrystalline anisotropy is necessary to stabilize magnetic order in 2D, 111 the TaS 2 materials may be especially appealing candidates due to larger SOC.…”

Section: Discussionmentioning

confidence: 94%

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Xie

Husremović

González

et al. 2022

Preprint

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Transition metal dichalcogenides (TMDs) intercalated with spin-bearing transition metal centers are a diverse class of magnetic materials where the spin density and ordering behavior can be varied by the choice of host lattice, intercalant identity, level of intercalation, and intercalant disorder. Each of these degrees of freedom alters the interplay between several key magnetic interactions to produce disparate collective electronic and magnetic phases. The array of magnetic and electronic behavior typified by these systems renders them distinctive platforms for realizing tunable magnetism in solid-state materials and promising candidates for spin-based electronic devices. This Perspective provides an overview of the rich magnetism displayed by transition metal-intercalated TMDs by considering Fe- and Cr-intercalated NbS2 and TaS2. These four exemplars of this large family of materials exhibit a wide range of magnetic properties, including sharp switching of magnetic states, current-driven magnetic switching, and chiral spin textures. An understanding of the fundamental origins of the resultant magnetic/electronic phases in these materials is discussed in the context of composition, bonding, electronic structure, and magnetic anisotropy in each case study.

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Section: Discussionmentioning

confidence: 94%

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Xie

Husremović

González

et al. 2022

Preprint

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“…2H-Mn x TaS 2 is a soft FM with an easyplane anisotropy [11][12][13][14][15][16][17]; its anisotropic magnetoresistance (MR) indicates a possible field-induced novel magnetic structure [16,17]. The most widely studied member in this family is 2H-Fe 1/4 TaS 2 , which exhibits FM with a strong uniaxial anisotropy, and shows large magnetocrystalline anisotropy and MR, sharp switching in magnetization, and anomalous Hall effect [18][19][20][21][22]. Recently discovered 2H-Co 0.22 TaS 2 also shows FM with a strong uniaxial anisotropy [23], in contrast to 2H-Co 1/3 TaS 2 exhibiting AFM [24].…”

Section: Introductionmentioning

confidence: 99%

Electrical and thermal transport in van der Waals magnets 2H-M$_x$TaS$_2$ (M = Mn, Co)

Liu,

Hu,

Tong

et al. 2022

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We report a detailed study of electrical and thermal transport properties in 2H-MxTaS2 (M = Mn, Co) magnets where M atoms are intercalated in the van der Waals gap. The intercalation induces ferromagentism with an easy-plane anisotropy in 2H-MnxTaS2, but ferromagnetism with a strong uniaxial anisotropy in 2H-Co0.22TaS2, which finally evolves into a three-dimensional antiferromagnetism in 2H-Co0.34TaS2. Temperature-dependent electrical resistivity shows metallic behavior for all samples. Thermopower is negative in the whole temperature range for 2H-CoxTaS2, whereas the sign changes from negative to positive with increasing Mn for 2H-MnxTaS2. The diffusive thermoelectric response dominates in both high-and low-temperature ranges for all samples. A clear kink in electrical resistivity, a weak anomaly in thermal conductivity, as well as a slope change in thermopower were observed at the magnetic transitions for 2H-Mn0.28TaS2 (Tc ≈ 82 K) and 2H-Co0.34TaS2 (TN ≈ 36 K), respectively, albeit weaker for lower x crystals. Co-intercalation promoted ferromagnetic to antiferromagnetic transition is further confirmed by the Hall resistivity; the sign change of the ordinary Hall coefficient indicates a multi-band behavior in 2H-CoxTaS2.

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“…It features large magnetocrystalline anisotropy, magnetoresistance, and sharp switching in magnetization [25][26][27]. Anomalous Hall ef-fect (AHE) mechanism in 2H-Fe 0.29 TaS 2 changes from extrinsic scattering to intrinsic contribution with thickness reduction [28], whereas the spin coupling in 2H-Fe 0.26 TaS 2 is of 3D Heisenberg type coupled with longrange magnetic interactions [29].…”

Section: Introductionmentioning

confidence: 99%

Magnetic critical behavior and anomalous Hall effect in 2H-Co$_{0.22}$TaS$_{2}$ single crystals

Liu,

Hu,

Stavitski

et al. 2021

Preprint

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We report ferromagnetism in 2H-Co0.22TaS2 single crystals where Co atoms are intercalated in the van der Waals gap, and a systematic study of its magnetic critical behavior in the vicinity of Tc ∼ 28 K. The obtained critical exponents β = 0.43(2), γ = 1.15(1), and δ = 3.54(1) fulfill the Widom scaling relation δ = 1 + γ/β and follow the scaling equation. This indicates that the spin coupling in 2H-Co0.22TaS2 is of three-dimensional Hersenberg type coupled with long-range magnetic interaction, and that the exchange interaction decays with distance as J(r) ≈ r −4.69 . 2H-Co0.22TaS2 exhibits a weak temperature-dependent metallic behavior in resistivity and negative values of thermopower with dominant electron-type carriers, in which obvious anomalies were observed below Tc as well as the anomalous Hall effect (AHE). The linear scaling behavior between the modified anomalous Hall resistivity ρxy/µ0H and longitudinal resistivity ρ 2 xx M/µ0H implies that the origin of AHE in 2H-Co0.22TaS2 should be dominated by the extrinsic side-jump mechanism.

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Anomalous Hall effect mechanisms in the quasi-two-dimensional van der Waals ferromagnet Fe0.29TaS2

Cited by 15 publications

References 53 publications

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Structure and Magnetism of Iron- and Chromium-Intercalated Niobium and Tantalum Disulfides

Electrical and thermal transport in van der Waals magnets 2H-M$_x$TaS$_2$ (M = Mn, Co)

Magnetic critical behavior and anomalous Hall effect in 2H-Co$_{0.22}$TaS$_{2}$ single crystals

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