{ "id": "1403.5021", "version": "v2", "published": "2014-03-20T01:51:55.000Z", "updated": "2014-07-07T02:39:02.000Z", "title": "Spin susceptibility of two-dimensional transition metal dichalcogenides", "authors": [ "H. Hatami", "T. Kernreiter", "U. Zuelicke" ], "comment": "10 pages, 7 figures, RevTex 4.1, v2: minor changes (to appear in Phys. Rev. B)", "journal": "Phys. Rev. B 90, 045412 (2014)", "doi": "10.1103/PhysRevB.90.045412", "categories": [ "cond-mat.mes-hall" ], "abstract": "We have obtained analytical expressions for the q-dependent static spin susceptibility of monolayer transition metal dichalcogenides, considering both the electron-doped and hole-doped cases. Our results are applied to calculate spin-related physical observables of monolayer MoS2, focusing especially on in-plane/out-of-plane anisotropies. We find that the hole-mediated RKKY exchange interaction for in-plane impurity-spin components decays with the power law $R^{-5/2}$ as a function of distance $R$, which deviates from the $R^{-2}$ power law normally exhibited by a two-dimensional Fermi liquid. In contrast, the out-of-plane spin response shows the familiar $R^{-2}$ long-range behavior. We also use the spin susceptibility to define a collective g-factor for hole-doped MoS2 systems and discuss its density-dependent anisotropy.", "revisions": [ { "version": "v2", "updated": "2014-07-07T02:39:02.000Z" } ], "analyses": { "subjects": [ "73.22.-f", "75.30.Hx", "73.63.-b" ], "keywords": [ "two-dimensional transition metal dichalcogenides", "in-plane impurity-spin components decays", "power law", "monolayer transition metal dichalcogenides", "q-dependent static spin susceptibility" ], "tags": [ "journal article" ], "publication": { "publisher": "APS", "journal": "Physical Review B", "year": 2014, "month": "Jul", "volume": 90, "number": 4, "pages": "045412" }, "note": { "typesetting": "RevTeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2014PhRvB..90d5412H" } } }