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Thermopower of a Kondo-correlated quantum dot
R. Scheibner, H. Buhmann, D. Reuter +2
The thermopower of a Kondo-correlated gate-defined quantum dot is studied using a current heating technique. In the presence of spin correlations the thermopower shows a clear devi…
Band structure of semimagnetic Hg1-yMnyTe quantum wells
E. G. Novik, A. Pfeuffer-Jeschke, T. Jungwirth +5
The band structure of semimagnetic Hg_1-yMn_yTe/Hg_1-xCd_xTe type-III quantum wells has been calculated using eight-band kp model in an envelope function approach. Details of the b…
Giant spin-orbit splitting in a HgTe quantum well
Y. S. Gui, C. R. Becker, N. Dai +8
We have investigated beating patterns in Shubnikov-de Haas oscillations for HgTe/Hg_{0.3}Cd_{0.7}Te(001) quantum wells with electron densities of 2 to 3 X 10^{12} cm^{-2}. Up to 12…
Low-field diffusion magneto-thermopower of a high mobility two-dimensional electron gas
S. Maximov, M. Gbordzoe, H. Buhmann +2
The low magnetic field diffusion thermopower of a high mobility GaAs-heterostructure has been measured directly on an electrostatically defined micron-scale Hall-bar structure at l…