Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Nanoscale ferroelectric manipulation of magnetic flux quanta   Using heterostructures that combine a large-polarization ferroelectric
(BiFeO3) and a high-temperature superconductor (YBa2Cu3O7-{\delta}), we
demonstrate the modulation of the superconducting condensate at the nanoscale
via ferroelectric field effects. Through this mechanism, a nanoscale pattern of
normal regions that mimics the ferroelectric domain structure can be created in
the superconductor. This yields an energy landscape for magnetic flux quanta
and, in turn, couples the local ferroelectric polarization to the local
magnetic induction. We show that this form of magnetoelectric coupling,
together with the possibility to reversibly design the ferroelectric domain
structure, allows the electrostatic manipulation of magnetic flux quanta.

37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
31
The categories of this paper are: ao-sci
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
20
The categories of this paper are: acc-phys
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
5
The categories of this paper are: gr-qc
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat