{ "id": "cond-mat/0511528", "version": "v1", "published": "2005-11-22T03:44:54.000Z", "updated": "2005-11-22T03:44:54.000Z", "title": "The t-Jz ladder", "authors": [ "A. Weisse", "R. J. Bursill", "C. J. Hamer", "Zheng Weihong" ], "comment": "18 figures", "journal": "Phys. Rev. B 73, 144508 (2006)", "doi": "10.1103/PhysRevB.73.144508", "categories": [ "cond-mat.stat-mech", "cond-mat.str-el" ], "abstract": "The phase diagram of the two-leg t-Jz ladder is explored, using the density matrix renormalization group method. Results are obtained for energy gaps, electron density profiles and correlation functions for the half-filled and quarter-filled cases. The effective Lagrangian velocity parameter is shown to vanish at half-filling. The behaviour of the one-hole gap in the Nagaoka limit is investigated, and found to disagree with theoretical predictions. A tentative phase diagram is presented, which is quite similar to the full t-J ladder, but scaled up by a factor of about two in coupling. Near half-filling a Luther-Emery phase is found, which may be expected to show superconducting correlations, while near quarter-filling the system appears to be in a Tomonaga-Luttinger phase.", "revisions": [ { "version": "v1", "updated": "2005-11-22T03:44:54.000Z" } ], "analyses": { "keywords": [ "density matrix renormalization group method", "phase diagram", "two-leg t-jz ladder", "full t-j ladder", "electron density profiles" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. B" }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }