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001 | 811450 | ||
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100 | 1 | _ | |a Heedt, S. |0 P:(DE-Juel1)140272 |b 0 |e Corresponding author |u fzj |
245 | _ | _ | |a Adiabatic Edge Channel Transport in a Nanowire Quantum Point Contact Register |
260 | _ | _ | |a Washington, DC |c 2016 |b ACS Publ. |
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520 | _ | _ | |a We report on a prototype device geometry where a number of quantum point contacts are connected in series in a single quasi-ballistic InAs nanowire. At finite magnetic field the backscattering length is increased up to the micron-scale and the quantum point contacts are connected adiabatically. Hence, several input gates can control the outcome of a ballistic logic operation. The absence of backscattering is explained in terms of selective population of spatially separated edge channels. Evidence is provided by regular Aharonov−Bohm-type conductance oscillations in transverse magnetic fields, in agreement with magnetoconductance calculations. The observation of the Shubnikov−de Haas effect at large magnetic fields corroborates the existence of spatially separated edge channels and provides a new means for nanowire characterization. |
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700 | 1 | _ | |a Schäpers, Th. |0 P:(DE-Juel1)128634 |b 6 |e Corresponding author |u fzj |
773 | _ | _ | |a 10.1021/acs.nanolett.6b01840 |g Vol. 16, no. 7, p. 4569 - 4575 |0 PERI:(DE-600)2048866-X |n 7 |p 4569 - 4575 |t Nano letters |v 16 |y 2016 |x 1530-6992 |
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