Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spin-orbit torque based physical unclonable function   This paper introduces the concept of spin-orbit-torque-MRAM (SOT-MRAM) based
physical unclonable function (PUF). The secret of the PUF is stored into a
random state of a matrix of perpendicular SOT-MRAMs. Here, we show
experimentally and with micromagnetic simulations that this random state is
driven by the intrinsic nonlinear dynamics of the free layer of the memory
excited by the SOT. In detail, a large enough current drives the magnetization
along an in-plane direction. Once the current is removed, the in-plane magnetic
state becomes unstable evolving towards one of the two perpendicular stable
configurations randomly. In addition, an hybrid CMOS/spintronics model is used
to evaluate the electrical characteristics of a PUF realized with an array of
16x16 SOT-MRAM cells. Beyond robustness against voltage and temperature
variations, hardware authentication based on this PUF scheme has additional
advantages over other PUF technologies such as non-volatility (no power
consumption in standby mode), reconfigurability (the secret can be rewritten),
and scalability. We believe that this work is a step forward the design of
spintronic devices for application in security.

9
The categories of this paper are: nlin
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
25
The categories of this paper are: patt-sol
2
The categories of this paper are: math
33
The categories of this paper are: plasm-ph
18
The categories of this paper are: econ
29
The categories of this paper are: funct-an
0
The categories of this paper are: hep-ph
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The categories of this paper are: eess
24
The categories of this paper are: dg-ga