Tunable magnetic properties of transition metal doped<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi mathvariant="normal">MoS</mml:mi></mml:mrow><mml:mn>2</mml:mn></mml:msub></mml:math>

Andriotis, Antonis N.; Menon, Madhu

doi:10.1103/physrevb.90.125304

Cited by 184 publications

(103 citation statements)

References 46 publications

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“…On graphene, RKKY interactions with a dominant 1D character have been identified for impurities near the sample edges [25] and line defects [26]. Magnetic impurities, such as Mn, Fe [27,28], Co [28], or Ti [29], can be introduced by STM and/or associated with Mo or S vacancies.…”

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confidence: 99%

Noncollinear exchange interaction in transition metal dichalcogenide edges

2016

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We study the Ruderman-Kittel-Kasuya-Yosida effective exchange interaction between magnetic impurities embedded on the edges of transition metal dichalcogenide flakes, using a three-orbital tight-binding model. Electronic states lying midgap of the bulk structure have a strong one-dimensional (1D) character, localized on the edges of the crystallite. This results in exchange interactions with 1/r (or slower) decay with distance r, similar to other 1D systems. Most interestingly, however, the strong spin-orbit interaction in these materials results in sizable noncollinear Dzyaloshinskii-Moriya interactions between impurities, comparable in size to the usual Ising and in-plane components. Varying the relevant Fermi energy by doping or gating may allow one to modulate the effective interactions, controlling the possible helical ground state configurations of multiple impurities.

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confidence: 99%

Noncollinear exchange interaction in transition metal dichalcogenide edges

2016

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“…Recently, the doping effects on the magnetic properties of monolayer MoS 2 were studied using first-principles calculations [24][25][26][27]. In particular, Cheng et al [24] indicated that (Mo, X)S 2 (X = Mn, Fe, Co, and Zn) are the promising system of 2D diluted magnetic semiconductor.…”

Section: Resultsmentioning

confidence: 99%

Electronic and Magnetic Properties Modulated by Adsorption of 3d Transition Metal Atoms in Monolayer and Bilayer MoS2 Sheets

Wang

Chen

Zhu

et al. 2015

Acta Metall. Sin. (Engl. Lett.)

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The adsorption effects of 3d transitional metal (TM) adatoms on electronic and magnetic properties of monolayer and bilayer MoS 2 sheets have been investigated by using first-principle calculations based on the density functional theory. The calculated results suggest that both monolayer and bilayer MoS 2 sheets have power abilities of absorbing 3d TM atoms. The interlayer adsorption of bilayer MoS 2 is relatively more stable than the surface adsorption of monolayer MoS 2 . The 3d TM adatoms and the neighboring S atoms behave a clear covalent-binding character. It was found that TM adatoms induce certain impurity states within the band gap of the pristine MoS 2 sheet which result in the systems magnetically semiconducting or half metallic. The adsorbed systems for Cr and Co on the surface of monolayer MoS 2 sheet, as well as Sc, Cr and Fe in the interlayer of bilayer MoS 2 sheet exhibit half-metallic behavior. And the other 3d TMadsorbed systems are magnetic semiconductor except for Ni species.

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“…6,7 Furthermore MoS 2 materials are predicted to be very suitable for spintronics applications due to their specially well-defined spin-splitting property, 8,9 and diverse magnetic orderings have been reported theoretically in transition-metal (TM) doped MoS 2 . [10][11][12][13][14] These studies verified that the electronic and magnetic properties of MoS 2 materials can be modified by TM dopants, which may lead to a new class of thin dilute magnetic semiconductors (DMS) in the engineering field. Be similar with MoS 2 monolayer structurally and electronically, the WS 2 monolayer has special electronic and magnetic characteristics and attracted more and more attention.…”

Section: Introductionmentioning

confidence: 84%

“…Similarly, there are five S atoms around two Ni atoms carry a total moment of -0.273 µ B . From the previous studies, 12,28 we know that the hybridization between the localized Ni 3d and the delocalized S 3p states leads to the AFM coupling between the Ni spins and S spins. More importantly, every time the S spins come cross a Ni defect, the AFM alignment between S and Ni leads to an effective FM alignment of all the Ni spins.…”

Section: -5mentioning

confidence: 99%

Ab initio study of electronic and magnetic properties in Ni-doped WS2 monolayer

2016

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The magnetic properties of Ni-doped WS2 monolayer are investigated using first-principles method. The results indicate that both one-Ni-doped and the nearest two-Ni-doped systems are magnetic. The p-d hybridization between the Ni atom and its neighboring S atoms results in the ferromagnetic interaction of the Ni-doped WS2 monolayer. The antiferromagnetic coupling is observed with increasing Ni-Ni distance which can be explained by two-impurity Haldane-Anderson model using quantum Monte Carlo method. Our studies show that the nearest two Ni-doped WS2 monolayers to be candidates for two-dimensional transition-metal nanosheets. Moreover, we discussed the differences in the formation energy between W-rich and S-rich conditions. Our results also predict that it would be easier to incorporate Ni atoms into a S-rich WS2 monolayer in the experiment.

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Tunable magnetic properties of transition metal dopedMoS2

Cited by 184 publications

References 46 publications

Noncollinear exchange interaction in transition metal dichalcogenide edges

Noncollinear exchange interaction in transition metal dichalcogenide edges

Electronic and Magnetic Properties Modulated by Adsorption of 3d Transition Metal Atoms in Monolayer and Bilayer MoS2 Sheets

Ab initio study of electronic and magnetic properties in Ni-doped WS2 monolayer

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