Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin splitting with persistent spin textures induced by the line defect
  in 1T-phase of monolayer transition metal dichalcogenides   The spin splitting driven by spin-orbit coupling in monolayer (ML) transition
metal dichalcogenides (TMDCs) family has been widely studied only for the
1H-phase structure, while it is not profound for the 1T-phase structure due to
the centrosymmetric of the crystal. Based on first-principles calculations, we
show that significant spin splitting can be induced in the ML 1T-TMDCs by
introducing the line defect. Taking the ML PtSe2 as a representative example,
we considered the most stable form of the line defects, namely Se-vacancy line
defect (Se-VLD). We find that large spin splitting is observed in the defect
states of the Se-VLD, exhibiting a highly unidirectional spin configuration in
the momentum space. This peculiar spin configuration may yield the so-called
persistent spin textures (PST), a specific spin structure resulting in
protection against spin-decoherence and supporting an extraordinarily long spin
lifetime. Moreover, by using k.p perturbation theory supplemented with symmetry
analysis, we clarified that the emerging of the spin splitting maintaining the
PST in the defect states is originated from the inversion symmetry breaking
together with one-dimensional nature of the Se-VLD engineered ML PtSe2. Our
findings pave a possible way to induce the significant spin splitting in the ML
1T-TMDCs, which could be highly important for designing spintronic devices.

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The categories of this paper are: chao-dyn
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The categories of this paper are: math-ph
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The categories of this paper are: funct-an
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The categories of this paper are: chem-ph
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The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
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The categories of this paper are: quant-ph
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The categories of this paper are: hep-th
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The categories of this paper are: ao-sci
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The categories of this paper are: nlin
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The categories of this paper are: math
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The categories of this paper are: dg-ga
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The categories of this paper are: q-bio
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The categories of this paper are: alg-geom
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The categories of this paper are: cmp-lg
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The categories of this paper are: solv-int