Itinerant magnetism of Mn-intercalated compounds of 2H-type TaS2

Motizuki, Kazuko; Suzuki, N.; Tomishima, Shigeki

doi:10.1016/0304-8853(92)90982-t

Cited by 15 publications

(10 citation statements)

References 5 publications

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“…[7][8][9] Other notable intercalation-dependent characteristics encompass a wide array of magnetic phases including ferromagnetism, antiferromagnetism, and spin-glass or cluster-glass states. [10][11][12][13][14][15] The multiplicity of magnetic states arises because of the type of magnetic intercalant ion, the interactions between the intercalant ions, band-structure effects due to the intercalation, and the distribution of the intercalant ions. Intercalation of 3d transition-metal ions such as Mn or Fe results in localized moments (especially for Mn).…”

Section: Introductionmentioning

confidence: 99%

Coulomb-driven cluster-glass behavior in Mn-intercalated Ti1+yS2

et al. 2012

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Section: Introductionmentioning

confidence: 99%

Coulomb-driven cluster-glass behavior in Mn-intercalated Ti1+yS2

et al. 2012

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“…Calculations of DOS for the conduction band of 2H − T aS 2 showed that E F lies approximately at the midpoint of the d z 2 band of T a, and the d z 2 band is half filled (occupied by one electron per formula unit) and the DOS has a peak at the Fermi level 9,10 . When sodium ions are intercalated between the layers of 2H − T aS 2 , charges are transferred from sodium to d z 2 band of T a.…”

Section: B Ac Diamagnetism and Edx Of Semmentioning

confidence: 99%

Fabrication and superconductivity ofNaxTaS2crystals

et al. 2005

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In this paper we report the growth and superconductivity of N axT aS2 crystals. The structural data deduced from X-ray diffraction pattern shows that the sample has the same structure as 2H − T aS2. A series of crystals with different superconducting transition temperatures (Tc) ranging from 2.5 K to 4.4 K were obtained. It is found that the Tc rises with the increase of N a content determined by Energy-Dispersive x-ray microanalysis(EDX) of Scanning Electron Microscope (SEM) on these crystals. Compared with the resistivity curve of un-intercalated sample 2H − T aS2 (Tc = 0.8 K, TCDW ≈ 70 K), no signal of charge density wave (CDW) was observed in samples N a0.1T aS2 and N a0.05T aS2. However, in some samples with lower Tc, the CDW appears again at about 65 K. Comparison between the anisotropic resistivity indicates that the anisotropy becomes smaller in samples with more N a intercalation (albeit a weak semiconducting behavior along c-axis) and thus higher Tc. It is thus concluded that there is a competition between the superconductivity and the CDW. With the increase of sodium content, the rise of Tc in N axT aS2 is caused mainly by the suppression to the CDW in 2H − T aS2, and the conventional rigid band model for layered dichalcogenide may be inadequate to explain the changes induced by the slight intercalation of sodium in 2H − T aS2.

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“…RWR is 1 for a localized system and is larger in an itinerant system. Here we obtain the RWR ≈ 1.03(1), indicating a localized character [43]. The mechanism of FM coupling in 2H-Mn 0.28 TaS 2 is the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction in which the local spins of intercalated Mn ions align ferromagnetically through the itinerant Ta 5d electrons [43].…”

Section: Resultsmentioning

confidence: 69%

Three-dimensional ferromagnetism and magnetotransport in van der Waals Mn-intercalated tantalum disufide

Liu,

Hu,

Stavitski

et al. 2021

Preprint

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Van der Waals (vdW) ferromagnets are an important class of materials for spintronics applications. The recent discovery of atomically vdW magnets CrI3 and Cr2Ge2Te6 has triggered a renaissance in the area of two-dimensional (2D) magnetism. Herein we systematically studied 2H-Mn0.28TaS2 single crystal, a 2D vdW ferromagnet with Tc ∼ 82.3 K and a large in-plane magnetic anisotropy. Mn K-edge x-ray absorption spectroscopy was measured to provide information on its electronic state and local atomic environment. The detailed magnetic isotherms measured in the vicinity of Tc indicates that the spin coupling inside 2H-Mn0.28TaS2 is of a three-dimensional (3D) Heisenberg-type coupled with the attractive long-range interaction between spins that decay as J(r) ≈ r −4.85 . Both resistivity ρ(T ) and thermopower S(T ) exhibit anomalies near Tc, confirming that the hole-type transport carriers strongly interact with local moments. An unusual angle-dependent magnetoresistance is further observed, suggesting a possible field-induced novel magnetic structure.

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Itinerant magnetism of Mn-intercalated compounds of 2H-type TaS2

Cited by 15 publications

References 5 publications

Coulomb-driven cluster-glass behavior in Mn-intercalated Ti1+yS2

Coulomb-driven cluster-glass behavior in Mn-intercalated Ti1+yS2

Fabrication and superconductivity ofNaxTaS2crystals

Three-dimensional ferromagnetism and magnetotransport in van der Waals Mn-intercalated tantalum disufide

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