Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Preferential out-of-plane conduction and quasi-one-dimensional
  electronic states in layered 1T-TaS2   Layered transition metal dichalcogenides (TMDs) are commonly classified as
quasi-two-dimensional materials, meaning that their electronic structure
closely resembles that of an individual layer, which results in resistivity
anisotropies reaching thousands. Here, we show that this rule does not hold for
1T-TaS2 - a compound with the richest phase diagram among TMDs. While the onset
of charge density wave order makes the in-plane conduction non-metallic, we
reveal that the out-of-plane charge transport is metallic and the resistivity
anisotropy is close to one. We support our findings with ab-initio calculations
predicting a pronounced quasi-one-dimensional character of the electronic
structure. Consequently, we interpret the highly debated metal-insulator
transition in 1T-TaS2 as a quasi-one-dimensional instability, contrary to the
long-standing Mott localisation picture. In a broader context, these findings
are relevant for the newly born field of van der Waals heterostructures, where
tuning interlayer interactions (e.g. by twist, strain, intercalation, etc.)
leads to new emergent phenomena.

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The categories of this paper are: gr-qc
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The categories of this paper are: econ
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The categories of this paper are: adap-org
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The categories of this paper are: physics
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The categories of this paper are: hep-ex
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The categories of this paper are: alg-geom
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The categories of this paper are: atom-ph
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The categories of this paper are: supr-con
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The categories of this paper are: chem-ph
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: chao-dyn
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The categories of this paper are: q-fin
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The categories of this paper are: patt-sol
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The categories of this paper are: bayes-an
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The categories of this paper are: math