Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Giant Voltage Manipulation of MgO-based Magnetic Tunnel Junctions via
  Localized Anisotropic Strain: a Potential Pathway to Ultra-Energy-Efficient
  Memory Technology   Strain-mediated voltage control of magnetization in
piezoelectric/ferromagnetic systems is a promising mechanism to implement
energy-efficient spintronic memory devices. Here, we demonstrate giant voltage
manipulation of MgO magnetic tunnel junctions (MTJ) on a
Pb(Mg1/3Nb2/3)0.7Ti0.3O3 (PMN-PT) piezoelectric substrate with (001)
orientation. It is found that the magnetic easy axis, switching field, and the
tunnel magnetoresistance (TMR) of the MTJ can be efficiently controlled by
strain from the underlying piezoelectric layer upon the application of a gate
voltage. Repeatable voltage controlled MTJ toggling between high/low-resistance
states is demonstrated. More importantly, instead of relying on the intrinsic
anisotropy of the piezoelectric substrate to generate the required strain, we
utilize anisotropic strain produced using local gating scheme, which is
scalable and amenable to practical memory applications. Additionally, the
adoption of crystalline MgO-based MTJ on piezoelectric layer lends itself to
high TMR in the strain-mediated MRAM devices.

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The categories of this paper are: solv-int
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The categories of this paper are: hep-th
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The categories of this paper are: chem-ph
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The categories of this paper are: dg-ga
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The categories of this paper are: funct-an
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The categories of this paper are: math-ph
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The categories of this paper are: q-fin
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The categories of this paper are: acc-phys
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The categories of this paper are: cmp-lg
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The categories of this paper are: mtrl-th
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The categories of this paper are: hep-ex
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The categories of this paper are: bayes-an
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The categories of this paper are: alg-geom
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The categories of this paper are: comp-gas
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The categories of this paper are: cs
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The categories of this paper are: astro-ph