{ "id": "2407.20577", "version": "v1", "published": "2024-07-30T06:22:52.000Z", "updated": "2024-07-30T06:22:52.000Z", "title": "Magnetic field dependence of the atomic and electronic structure of monovalent metallic nanocontacts unveiled in transport experiments", "authors": [ "Beilun Wu", "Andrés Martínez", "Paula Obladen", "Marta Fernández-Lomana", "Edwin Herrera", "Carlos Sabater", "Juan José Palacios", "Isabel Guillamón", "Hermann Suderow" ], "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci", "cond-mat.str-el" ], "abstract": "We measure Au and Ag atomic-size contacts in magnetic fields, from zero field to 20 T. We find a magnetic field induced torque which leads to atomic binding at shorter distances than at zero field. Furthermore, the conductance drops below $G_0$ at high magnetic fields by about 15\\% in Au. We calculate the conduction through nanosized Au contacts containing residual $O_2$ molecules attached to the contact region and find a spin polarized current when $O_2$ is located at the atomic contact. We discuss the role of spin-orbit coupling in the magnetic properties of $O_2$ attached to Au.", "revisions": [ { "version": "v1", "updated": "2024-07-30T06:22:52.000Z" } ], "analyses": { "keywords": [ "magnetic field dependence", "monovalent metallic nanocontacts", "electronic structure", "transport experiments", "au contacts containing residual" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }