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Nonpolar resistive switching in the Pt/MgO/Pt nonvolatile memory device
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10.1063/1.3429024
/content/aip/journal/apl/96/19/10.1063/1.3429024
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3429024
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Nonpolar RS behavior, the coexistence of [(a) and (d)] unipolar and [(b) and (c)] bipolar RS characteristics, is observed in the MgO memory device. The SET-RESET processes can be achieved by (a) positive-positive, (b) positive-negative, (c) negative-positive, and (d) negative-negative voltage polarities.

Image of FIG. 2.
FIG. 2.

The first three dc voltage sweeps applied to the as-fabricated MgO memory devices with the MgO films deposited in (a) the Ar atmosphere, showing the nonforming nature; and in (b) the 20% atmosphere, showing the requirement of the forming process.

Image of FIG. 3.
FIG. 3.

The XPS spectra of the MgO film of (a) , indicating the coexistence of in MgO ( at 51.5 eV) in majority and metallic Mg ( at 49.8 eV) in minority; and of (b) , indicating the existence of lattice oxygen ions ( at 529.8 eV). The solid lines represent the fitted spectra.

Image of FIG. 4.
FIG. 4.

(a) The temperature dependence of the LRS resistance measured with 100 mV. The solid line represents the linear fit. (b) The AES compositional depth profile of the MgO memory device in the LRS after 100 switching cycles.

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/content/aip/journal/apl/96/19/10.1063/1.3429024
2010-05-13
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Nonpolar resistive switching in the Pt/MgO/Pt nonvolatile memory device
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3429024
10.1063/1.3429024
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