Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Berry curvature memory through electrically driven stacking transitions   In two-dimensional layered quantum materials, the stacking order of the
layers determines both the crystalline symmetry and electronic properties such
as the Berry curvature, topology and electron correlation. Electrical stimuli
can influence quasiparticle interactions and the free-energy landscape, making
it possible to dynamically modify the stacking order and reveal hidden
structures that host different quantum properties. Here we demonstrate
electrically driven stacking transitions that can be applied to design
nonvolatile memory based on Berry curvature in few-layer WTe$_2$. The interplay
of out-of-plane electric fields and electrostatic doping controls in-plane
interlayer sliding and creates multiple polar and centrosymmetric stacking
orders. In situ nonlinear Hall transport reveals such stacking rearrangements
result in a layer-parity-selective Berry curvature memory in momentum space,
where the sign reversal of the Berry curvature and its dipole only occurs in
odd-layer crystals. Our findings open an avenue towards exploring coupling
between topology, electron correlations, and ferroelectricity in hidden
stacking orders and demonstrate a new low-energy-cost, electrically controlled
topological memory in the atomically thin limit.

21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
18
The categories of this paper are: econ
1
The categories of this paper are: cs
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
34
The categories of this paper are: chem-ph
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
9
The categories of this paper are: nlin
32
The categories of this paper are: atom-ph