experimental observation of the quantum spin hall effect nig_local-probing... · pdf...
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![Page 1: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/1.jpg)
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y
z
x
![Page 5: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/5.jpg)
40 60 80 100 120 140-100
-50
0
50
100
Eg
ap /
eV E1
H4
H3
H1
dQW
/ Å
E2
H2
HgTe QW
Eg
ap
/ m
eV
dQW / Å
![Page 6: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/6.jpg)
M. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008);
A. Roth et al., Science 325, 294 (2009)
-2.0 -1.5 -1.0 -0.5 0.010
2
103
104
105
106
G = 2 e2/h
Rxx /
Vg / V
45 Å
80 Å
![Page 7: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/7.jpg)
![Page 8: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/8.jpg)
et al., Science 325, 294 (2009)
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Uexc
Vtip
![Page 11: Experimental observation of the Quantum Spin Hall effect nig_Local-probing... · PDF fileM. König et al., Science 318, 766 (2007); M. König et al., JPSJ 77, 031007 (2008); A. Roth](https://reader033.vdocuments.us/reader033/viewer/2022051723/5aabc5067f8b9a693f8c5cae/html5/thumbnails/11.jpg)
z (nm)260
01 μm
x
y
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G (e2/h)
1.0
2.02.2
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G (arb.u.)
0
>0
++ +++ +
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G (arb.u.)
0
>0
++ +++ +
-14.5 V -13.0 V
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G (arb.u.)
0
>0
++ +++ +
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++ +
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G (
e2/h
)
b
y (μm)
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Vtip-10 V +10 V
y
0
8 μm
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