{ "id": "1003.3705", "version": "v1", "published": "2010-03-19T02:49:49.000Z", "updated": "2010-03-19T02:49:49.000Z", "title": "Electron transport through Al-ZnO-Al: an {\\it ab initio} calculation", "authors": [ "Zijiang Yang", "Langhui Wan", "Yunjin Yu", "Yadong Wei", "Jian Wang" ], "comment": "10 pages, 6 figures", "categories": [ "cond-mat.mes-hall" ], "abstract": "The electron transport properties of ZnO nano-wires coupled by two aluminium electrodes were studied by {\\it ab initio} method based on non-equilibrium Green's function approach and density functional theory. A clearly rectifying current-voltage characteristics was observed. It was found that the contact interfaces between Al-O and Al-Zn play important roles in the charge transport at low bias voltage and give very asymmetric I-V characteristics. When the bias voltage increases, the negative differential resistance occurs at negative bias voltage. The charge accumulation was calculated and its behavior was found to be well correlated with the I-V characteristics. We have also calculated the electrochemical capacitance which exhibits three plateaus at different bias voltages which may have potential device application.", "revisions": [ { "version": "v1", "updated": "2010-03-19T02:49:49.000Z" } ], "analyses": { "subjects": [ "73.40.Sx", "73.40.Ns", "73.40.Ei", "72.20.Fr", "73.63.Nm", "82.45.-h" ], "keywords": [ "ab initio", "electron transport", "non-equilibrium greens function approach", "calculation", "al-zn play important roles" ], "tags": [ "journal article" ], "publication": { "doi": "10.1063/1.3467000", "journal": "Journal of Applied Physics", "year": 2010, "month": "Aug", "volume": 108, "number": 3, "pages": 3704 }, "note": { "typesetting": "TeX", "pages": 10, "language": "en", "license": "arXiv", "status": "editable", "adsabs": "2010JAP...108c3704Y" } } }