Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hidden persistent spin texture in bulk crystals   Exploring hidden effects that have been overlooked given the nominal global
crystal symmetry but are indeed visible in solid-state materials has been a
fascinating subject of research recently. Here, we introduce a novel type of
hidden persistent spin texture (HPST) in nonmagnetic bulk crystals consisting
of a pair of real-space sectors. In these crystals, the doubly degenerate bands
formed in the momentum space can exhibit a uniform spin configuration with
opposite spin orientations, which are spatially separated in the paired
sectors. Interestingly, we find that such a type of spin texture can be hidden
in both centrosymmetric and non-centrosymmetric materials. We further
demonstrate the important role of nonsymmorphic twofold screw-rotational
symmetry played in the formation of HPST. Moreover, two representative material
examples, i.e., centrosymmetric WSe$_2$ and noncentrosymmetric BaBi$_4$O$_7$,
are identified to show HPST via first-principles calculations. Our finding thus
not only opens new perspectives for hidden spin polarization research but also
significantly broadens the range of materials towards spintronics applications.

35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
26
The categories of this paper are: bayes-an
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
0
The categories of this paper are: hep-ph
9
The categories of this paper are: nlin
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
36
The categories of this paper are: cmp-lg
1
The categories of this paper are: cs
16
The categories of this paper are: stat
7
The categories of this paper are: hep-th
24
The categories of this paper are: dg-ga
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th