{ "id": "1501.01025", "version": "v1", "published": "2015-01-05T22:26:14.000Z", "updated": "2015-01-05T22:26:14.000Z", "title": "Magnetization of Quantum Dots: A Measure of Anisotropy and the Rashba Interaction", "authors": [ "Siranush Avetisyan", "Tapash Chakraborty", "Pekka Pietilainen" ], "comment": "Manuscript with 6 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The magnetization of anisotropic quantum dots in the presence of the Rashba spin-orbit interaction has been studied for three interacting electrons in the dot. We observe unique behaviors of magnetization that are direct reflections of the anisotropy and the spin-orbit interaction parameters independently or concurrently. In particular, there are saw-tooth structures in the magnetic field dependence of the magnetization, as caused by the electron-electron interaction, that are strongly modified in the presence of large anisotropy and high strength of the spin-orbit interactions. We report the temperature dependence of magnetization that indicates the temperature beyond which these structures due to the interactions disappear. Additionally, we found the emergence of a weak saw-tooth structure in magnetization in the high anisotropy and large spin-orbit interaction limit that was explained as a result of merging of two low-energy curves when the level spacings evolve with increasing values of the anisotropy and the spin-orbit interaction strength.", "revisions": [ { "version": "v1", "updated": "2015-01-05T22:26:14.000Z" } ], "analyses": { "keywords": [ "magnetization", "anisotropy", "rashba interaction", "large spin-orbit interaction limit", "anisotropic quantum dots" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }