{ "id": "1109.2753", "version": "v1", "published": "2011-09-13T11:59:02.000Z", "updated": "2011-09-13T11:59:02.000Z", "title": "Spectrum of Andreev bound states in Josepshon junctions with a ferromagnetic insulator", "authors": [ "Shiro Kawabata", "Yukio Tanaka", "Alexander A. Golubov", "Andrey S. Vasenko", "Yasuhiro Asano" ], "comment": "6 pages, 5 figures, Invited Report on the Moscow International Symposium on Magnetism MISM2011", "journal": "Journal of Magnetism and Magnetic Materials 324 (2012) 3467", "doi": "10.1016/j.jmmm.2012.02.067", "categories": [ "cond-mat.mes-hall", "cond-mat.supr-con" ], "abstract": "Ferromagnetic-insulator (FI) based Josephson junctions are promising candidates for a coherent superconducting quantum bit as well as a classical superconducting logic circuit. Recently the appearance of an intriguing atomic-scale 0-pi transition has been theoretically predicted. In order to uncover the mechanism of this phenomena, we numerically calculate the spectrum of Andreev bound states in a FI barrier by diagonalizing the Bogoliubov-de Gennes equation. We show that Andreev spectrum drastically depends on the parity of the FI-layer number L and accordingly the pi (0) state is always more stable than the 0 (pi) state if L is odd (even).", "revisions": [ { "version": "v1", "updated": "2011-09-13T11:59:02.000Z" } ], "analyses": { "keywords": [ "andreev bound states", "josepshon junctions", "ferromagnetic insulator", "andreev spectrum drastically depends", "coherent superconducting quantum bit" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 6, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2011arXiv1109.2753K" } } }