Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Voltage-induced strain control of the magnetic anisotropy in a Ni thin
  film on flexible substrate   Voltage-induced magnetic anisotropy has been quantitatively studied in
polycrystalline Ni thin film deposited on flexible substrate using microstrip
ferromagnetic resonance. This anisotropy is induced by a piezoelectric actuator
on which the film/substrate system was glued. In our work, the control of the
anisotropy through the applied elastic strains is facilitated by the compliant
elastic behavior of the substrate. The in-plane strains in the film induced by
the piezoelectric actuation have been measured by the digital image correlation
technique. Non-linear variation of the resonance field as function of the
applied voltage is found and well reproduced by taking into account the non
linear and hysteretic variations of the induced in-plane strains as function of
the applied voltage. Moreover, we show that initial uniaxial anisotropy
attributed to compliant substrate curvature is fully compensated by the voltage
induced anisotropy.

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The categories of this paper are: dg-ga
1
The categories of this paper are: cs
25
The categories of this paper are: patt-sol
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
3
The categories of this paper are: physics
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
9
The categories of this paper are: nlin
22
The categories of this paper are: chao-dyn
20
The categories of this paper are: acc-phys
10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph