{ "id": "cond-mat/0504563", "version": "v2", "published": "2005-04-21T14:39:53.000Z", "updated": "2013-06-22T08:21:58.000Z", "title": "Field-induced suppression of the heavy-fermion state in YbRh_2Si_2", "authors": [ "Y. Tokiwa", "P. Gegenwart", "T. Radu", "J. Ferstl", "G. Sparn", "C. Geibel", "F. Steglich" ], "journal": "Phys. Rev. Lett. 94, 226402 (2005)", "doi": "10.1103/PhysRevLett.94.226402", "categories": [ "cond-mat.str-el" ], "abstract": "We report DC magnetization measurements on YbRh_2Si_2 at temperatures down to 0.04K, magnetic fields B<11.5T and under hydrostatic pressure P<1.3GPa. At ambient pressure a kink at B*=9.9T indicates a new type of field-induced transition from an itinerant to a localized 4f-state. This transition is different from the metamagnetic transition observed in other heavy fermion compounds, as here ferromagnetic rather than antiferromagnetic correlations dominate below B*. Hydrostatic pressure experiments reveal a clear correspondence of B* to the characteristic spin fluctuation temperature determined from specific heat.", "revisions": [ { "version": "v2", "updated": "2013-06-22T08:21:58.000Z" } ], "analyses": { "keywords": [ "heavy-fermion state", "field-induced suppression", "hydrostatic pressure experiments reveal", "report dc magnetization measurements", "antiferromagnetic correlations dominate" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Phys. Rev. Lett." }, "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }