{ "id": "0807.0297", "version": "v1", "published": "2008-07-02T08:58:06.000Z", "updated": "2008-07-02T08:58:06.000Z", "title": "Numerical Studies of Quantum Hall Ferromagnetism in Two-Subband Systems", "authors": [ "Xiao-Jie Hao", "Tao Tu", "Yong-Jie Zhao", "Guang-Can Guo", "H. W. Jiang", "Guo-Ping Guo" ], "comment": "8 pages, 4 figures", "journal": "J. Phys.: Condens. Matter 21 455802 (2009)", "categories": [ "cond-mat.mes-hall" ], "abstract": "We carry out a numerical study of the quantum Hall ferromagnetism in a two-subband system using a set of experimental parameters in a recently experiment [X. C. Zhang, I. Martin, and H. W. Jiang, Phys. Rev. B \\textbf{74}, 073301 (2006)]. Employing the self-consistence local density approximation for growth direction wave function and the Hartree-Fock theory for the pseudospin anisotropy energy, we are able to account for the easy-axis and easy-plane quantum Hall ferromagnetism observed at total filling factor $\\nu = 3$ and $\\nu= 4$, respectively. Our study provides some insight of how the anisotropy energy, which highly depends upon the distribution of growth direction wave functions, determines the symmetry of the quantum Hall ferromagnets.", "revisions": [ { "version": "v1", "updated": "2008-07-02T08:58:06.000Z" } ], "analyses": { "keywords": [ "two-subband system", "numerical study", "growth direction wave function", "easy-plane quantum hall ferromagnetism", "self-consistence local density approximation" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2008arXiv0807.0297H" } } }