Magnetoresistance in an electronic cavity coupled to one-dimensional systems

Chengyu Yan, Sanjeev Kumar, Patrick See, Ian Farrer, David Ritchie, J. P. Griffiths, G. A. C. Jones, Michael Pepper

Published 2018-09-10Version 1

In this work, we performed magnetoresistance measurement in a hybrid system consisting of an arc-shaped quantum point contact (QPC) and a flat, rectangular QPC, both of which together form an electronic cavity between them. The results highlight a transition between collimation-induced resistance dip to a magnetoresistance peak as the strength of coupling between the QPC and the electronic cavity was increased. The initial results show the promise of hybrid quantum system for future quantum technologies.