{ "id": "1401.7297", "version": "v2", "published": "2014-01-28T19:03:17.000Z", "updated": "2014-03-10T18:23:43.000Z", "title": "Phenomenological phase diagram of superfluid 3He in a stretched aerogel", "authors": [ "I. A. Fomin" ], "comment": "10 pages, accepted for publication in ZhETF. A few typos are corrected, more exact experimental data for an average diameter of a strand is quoted in the introduction", "categories": [ "cond-mat.dis-nn", "cond-mat.str-el" ], "abstract": "Highly anisotropic \"nematically ordered\" aerogel induces global uniaxial anisotropy in superfluid 3He. The anisotropy lowers symmetry of 3He in aerogel from spherical to axial. As a result instead of one transition temperature in the state, characterized by the orbital moment l=1 there are two, corresponding to projections l_z=o and l_z=\\pm 1. The splitting of transition has a pronounced effect on the phase diagram of superfluid 3He and on a structures of appearing phases. Possible phase diagrams, obtained phenomenologically on a basis of Landau expansion of thermodynamic potential in a vicinity of the transition temperature are presented here. The order parameters, corresponding to each phase and their temperature dependencies are found.", "revisions": [ { "version": "v2", "updated": "2014-03-10T18:23:43.000Z" } ], "analyses": { "keywords": [ "superfluid 3he", "phenomenological phase diagram", "stretched aerogel", "aerogel induces global uniaxial anisotropy", "transition temperature" ], "tags": [ "journal article" ], "publication": { "doi": "10.1134/S1063776114050100", "journal": "Soviet Journal of Experimental and Theoretical Physics", "year": 2014, "month": "May", "volume": 118, "number": 5, "pages": 765 }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014JETP..118..765F" } } }