کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1518118 1511601 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
High-resolution angle-resolved photoemission study of bulk electronic states in YBa2Cu3O7-δYBa2Cu3O7-δ
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
High-resolution angle-resolved photoemission study of bulk electronic states in YBa2Cu3O7-δYBa2Cu3O7-δ
چکیده انگلیسی

We have studied low-energy electronic structure of YBa2Cu3O7-δYBa2Cu3O7-δ using high-resolution angle-resolved photoemission spectroscopy (ARPES). By carefully tuning photon energy and polarization of incident light, we identified five different bands in the vicinity of the Fermi level, those are surface-bilayer-derived bonding and antibonding bands, their bulk counterparts, and CuO-chain-derived band, respectively. The surface bands show metallic property reflecting highly overdoped character, while bulk bands show signature of a dx2-y2dx2-y2-wave superconducting gap opening. The present ARPES result suggests the universality of the bulk electronic states in bilayer high-TcTc superconductors.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Physics and Chemistry of Solids - Volume 69, Issue 12, December 2008, Pages 2967–2970
نویسندگان
, , , , , ,