{ "id": "1211.4486", "version": "v1", "published": "2012-11-19T16:31:43.000Z", "updated": "2012-11-19T16:31:43.000Z", "title": "Charge Density Waves in Exfoliated Thin Films of Van der Waals Materials", "authors": [ "Pradyumna Goli", "Javed Khan", "Darshana Wickramaratne", "Roger K. Lake", "Alexander A. Balandin" ], "comment": "13 pages", "journal": "Nano Letters, 12 (11), 5941 - 5945 (2012)", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "A number of the charge-density-wave materials reveal a transition to the macroscopic quantum state around 200 K. We used graphene-like mechanical exfoliation of titanium diselenide crystals to prepare a set of films with different thicknesses. The transition temperature to the charge-density-wave state was determined via modification of Raman spectra of titanium diselenide films. It was established that the transition temperature can increase from its bulk value to ~240 K as the thickness of the van-der-Waals films reduces to the nanometer range. The obtained results are important for the proposed applications of such materials in the collective-state information processing, which require room-temperature operation.", "revisions": [ { "version": "v1", "updated": "2012-11-19T16:31:43.000Z" } ], "analyses": { "keywords": [ "van der waals materials", "charge density waves", "exfoliated thin films", "titanium diselenide", "transition temperature" ], "tags": [ "journal article" ], "note": { "typesetting": "TeX", "pages": 13, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2012arXiv1211.4486G" } } }