{ "id": "2403.03793", "version": "v1", "published": "2024-03-06T15:42:33.000Z", "updated": "2024-03-06T15:42:33.000Z", "title": "Pseudospin Polarization of Composite Fermions under Uniaxial Strain", "authors": [ "Shuai Yuan", "Jiaojie Yan", "Ke Huang", "Zhimou Chen", "Haoran Fan", "L. N. Pfeiffer", "K. W. West", "Yang Liu", "Xi Lin" ], "comment": "12 pages with 4 figures and 9 pages with 4 figures", "journal": "Phys. Rev. B 109, L081110 (2024)", "doi": "10.1103/PhysRevB.109.L081110", "categories": [ "cond-mat.mes-hall", "cond-mat.str-el" ], "abstract": "A two dimensional system with extra degrees of freedom, such as spin and valley, is of great interest in the study of quantum phase transitions. The critical condition when a transition between different multicomponent fractional quantum Hall states appears is one of the very few junctions for many body problems between theoretical calculations and experiments. In this work, we present that uniaxial strain induces pseudospin transitions of composite fermions in a two-dimensional hole gas. Determined from transport behavior, strain along <111> effectively changes pseudospin energy levels. We deduce that diagonal strain dominates these variations. Our experiment provides a wedge for manipulating two dimensional interacting systems mechanically.", "revisions": [ { "version": "v1", "updated": "2024-03-06T15:42:33.000Z" } ], "analyses": { "keywords": [ "composite fermions", "changes pseudospin energy levels", "pseudospin polarization", "fractional quantum hall states appears", "multicomponent fractional quantum hall states" ], "tags": [ "journal article" ], "publication": { "publisher": "APS" }, "note": { "typesetting": "TeX", "pages": 12, "language": "en", "license": "arXiv", "status": "editable" } } }