Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Mesoscopic Current-In-Plane Giant Magneto-Resistance   We develop a three dimensional semiclassical theory which generalizes the
Valet-Fert model in order to account for non-collinear systems with magnetic
texture, including e.g. domain walls or magnetic vortices. The theory allows
for spin transverse to the magnetization to penetrate inside the ferromagnet
over a finite length and properly accounts for the Sharvin resistances. For
ferromagnetic-normal-ferromagnetic multilayers where the current is injected in
the plane of the layers (CIP), we predict the existence of a non zero
mesoscopic CIP Giant Magneto-Resistance (GMR) at the diffusive level. This
mesoscopic CIP-GMR, which adds to the usual ballistic contributions, has a non
monotonic spatial variation and is reminiscent of conductance quantization in
the layers. Furthermore, we study the spin transfer torque in spin valve
nanopillars. We find that when the magnetization direction is non uniform
inside the free layer, the spin torque changes very significantly and simple
one-dimensional calculations cease to be reliable.

1
The categories of this paper are: cs
17
The categories of this paper are: q-fin
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
33
The categories of this paper are: plasm-ph
34
The categories of this paper are: chem-ph
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math
8
The categories of this paper are: hep-ex
35
The categories of this paper are: mtrl-th
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
20
The categories of this paper are: acc-phys
16
The categories of this paper are: stat