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Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices
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10.1063/1.4767935
/content/aip/journal/jap/112/10/10.1063/1.4767935
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/10/10.1063/1.4767935
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Schematic illustration of ZnTe/CrTe heterogeneous junctions. The Z direction is transmission direction. (a) ZnTe(001)/CrTe(001) p-n junction, (b)ZnTe(011)/CrTe(011) p-n junction, (c) CrTe(001)/ZnTe(001)/CrTe(001) MTJ, (d) CrTe(011)/ZnTe(011)/CrTe(011) MTJ.

Image of FIG. 2.
FIG. 2.

(a) The I-V curves of ZnTe(001)/CrTe(001) and ZnTe(011)/CrTe(011) p-n junction, the I is majority spin current (minority spin current is absolutely inhibited). (b) The logarithm of negative voltage current. (c) The rectification ratio corresponding to the bias.

Image of FIG. 3.
FIG. 3.

[(a) and (b)] Band structures along the (001) direction near Ef for ZnTe and CrTe, respectively. [(c) and (d)] Band structures along the (011) direction near Ef for ZnTe and CrTe, respectively. [(a) and (c)] The black curves show total energy band. [(b) and (d)] Black line: majority spin; red line: minority spin. The horizontal blue dashed line shows the average Fermi level.

Image of FIG. 4.
FIG. 4.

[(a) and (b)] Transmission Spectrum for ZnTe(001)/CrTe(001) and ZnTe(011)/CrTe(011) p-n junction. The bottom panel is bias voltage from −1.0 V to 1.0 V, the left panel is E-EF which is electron energy from −1 eV to 1 eV around Fermi level and color shows the value of transmission coefficient. The horizontal white line shows the average Fermi level. The vertical white line means zero bias voltage. The two gradient white lines show bias window.

Image of FIG. 5.
FIG. 5.

Majority Brillouin zone resolved transmission coefficients at EF. The color shows the logarithm value of transmission coefficient [log10(T)]. (a) is for ZnTe(001)/CrTe(001) p-n junction at −0.35 V. (b) is for ZnTe(011)/CrTe(011) p-n junction at −0.35 V.

Image of FIG. 6.
FIG. 6.

The energy spectrum of MPSH for majority spin at the bias range from −1 V to 0 V in steps of 0.1 V is for (a) ZnTe(001)/CrTe(001) p-n junction, (b)ZnTe(011)/CrTe(011) p-n junction. The blue empty square is HOMO and the red solid round is LUMO.

Image of FIG. 7.
FIG. 7.

[(a) and (b)] The I-V curves of CrTe(001)/ZnTe(001)/CrTe(001) and CrTe(011)/ZnTe(011)/CrTe(011) MTJ, respectively, in the APC(red line) and PC(black line).

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/content/aip/journal/jap/112/10/10.1063/1.4767935
2012-11-29
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Anisotropic transport properties of zinc-blend ZnTe/CrTe heterogeneous junction nanodevices
http://aip.metastore.ingenta.com/content/aip/journal/jap/112/10/10.1063/1.4767935
10.1063/1.4767935
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