Magnetoresistance in an electronic cavity coupled to one-dimensional systems

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

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Magnetoresistance in an electronic cavity coupled to one-dimensional systems

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arxiv 1809.03552 v1 pith:4PHKZIKO submitted 2018-09-10 cond-mat.mes-hall

Chengyu Yan , Sanjeev Kumar , Patrick See , Ian Farrer , David Ritchie , J. P. Griffiths , G. A. C. Jones , Michael Pepper This is my paper · ORCID

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keywords cavityelectronicmagnetoresistancequantumhybridresultssystemarc-shaped

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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.

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