Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Micro-structuration effects on local magneto-transport in [Co/Pd]IrMn
  thin films   We measured the local magneto-transport (MT) signal with an out-of-plane
magnetic field, including magneto-resistance (MR) and Extraordinary Hall effect
(EHE), in exchange-biased [Co/Pd]IrMn thin multilayers that are
micro-structured with a 100 micron window. We found that when measured locally
around the window, the MT signal deviate from the expected behavior. We studied
possible causes, including film micro-structuration, electrical contact
geometry as well as magnetic field tilt from the normal direction. These MT
measurements were carried using the Van-der-Pauw method, with a set a four
microscopic contacts directly surrounding the window, and a set of four
contacts positioned several millimeters away from the window. We found that
tilting the magnetic field direction with respect to the normal does not
significantly affect the MT signal, whereas the positioning and geometry of the
contacts seem to highly affect the MT signal. When the contacts are directly
surrounding the window, the shape of the EHE signal is drastically deformed,
suggesting that the electron path is disturbed by the presence of the window
and the proximity of the electric contacts. If, on the other hand, the contacts
are sufficiently far apart, the MT signal is not significantly affected by the
presence of the window. Furthermore, the deformed EHE signal measured on the
inner contacts can be modeled as a mix of the EHE and MR signals measured on
the outer contacts.

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The categories of this paper are: ao-sci
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The categories of this paper are: chem-ph
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The categories of this paper are: q-alg
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The categories of this paper are: comp-gas
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The categories of this paper are: quant-ph
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The categories of this paper are: acc-phys
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The categories of this paper are: patt-sol
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The categories of this paper are: astro-ph
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The categories of this paper are: hep-ex
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The categories of this paper are: gr-qc
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The categories of this paper are: funct-an
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The categories of this paper are: econ
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The categories of this paper are: cs
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The categories of this paper are: solv-int
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The categories of this paper are: q-bio
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The categories of this paper are: nucl-th