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The nonlinear Rashba effect in Hg0.77Cd0.23Te inversion layers probed by weak antilocalization analysis
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View: Figures


Image of FIG. 1.
FIG. 1.

The Hall resistance of sample L288b for various at T = 1.5 K as a function of magnetic field. The inset denotes the SdH oscillation of longitudinal resistance at  = 0 V and T = 1.5 K for sample L288b.

Image of FIG. 2.
FIG. 2.

The dependence of mobility for samples L288b and L135b at 1.5 K; the regular triangles (black) denote sample L135b while the upside-down triangles (red) denote sample L288b. The inset is the magnetoconductance of sample L288b at 1.5 K and 0 V in a low magnetic field.

Image of FIG. 3.
FIG. 3.

Fitting results of the WAL effect at various and 1.5 K in units of for (a) sample L288b and (b) sample L135b. The open (gray) circles are experimental data and solid (red) lines are fitting curves. All curves have been vertically shifted for clarity. (c) dependent for L288b (red filled circles), for L135b (black filled squares), for L288b (red open circles), and for L135b (black open squares). are obtained from mobility measurements while are obtained from the Golub fitting.

Image of FIG. 4.
FIG. 4.

Carrier density dependent (a) and (b) derived by fitting the experiment result with Golub model. The regular triangles (black) and upside-down triangles (red) denote samples L288b and L135b, respectively.

Image of FIG. 5.
FIG. 5.

(a) and (b) derived from the self-consistent calculation as a fuction of k for  = 1.0 × 1015 m−2 (black solid line),  = 3.5 × 1015 m−2 (red dash line), and  = 6.0 × 1015 m−2 (green dash dot line) as denoted by the legend in (a). The corresponding of is denoted with the black circles. The inset of (b) presents provided by the nonlinear Rashba model (Eq. (3) ), the corrected Rashba model, and the linear Rashba model (Eq. (2) ) as a function of k.

Image of FIG. 6.
FIG. 6.

(a) and (b) at the Fermi surface as a function of . The solid(black) line and dashed (red) line denote the results evaluated from theself-consistent calculation (Eq. (3) ) and linear Rashba model (Eq. (2) ), respectively. The experiment results also presented for comparison. The regular triangles (red) and upside-down triangles (green) correspond to samples L288b and L135b, respectively.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: The nonlinear Rashba effect in Hg0.77Cd0.23Te inversion layers probed by weak antilocalization analysis