تقرير
Characteristic electronic structure and its doping evolution in lightly-doped to underdoped YBa2Cu3Oy
| العنوان: | Characteristic electronic structure and its doping evolution in lightly-doped to underdoped YBa2Cu3Oy |
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| المؤلفون: | Yagi, H., Yoshida, T., Fujimori, A., Tanaka, K., Mannella, N., Yang, W. L., Zhou, X. J., Lu, D. H., Shen, Z. -X., Hussain, Z., Kubota, M., Ono, K., Segawa, K., Ando, Y., Iijima, D., Goto, M., Kojima, K. M., Uchida, S. |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | We have performed an angle resolved photoemission spectroscopy (ARPES) study of lightly-doped to underdoped YBa2Cu3Oy (YBCO) untwinned single crystals and a core-level x-ray photoemission spectroscopy (XPS) study of YBCO single and polycrystals. In the zone diagonal (nodal) direction, dispersive quasi-particle (QP) features crossing the Fermi level were observed down to the hole concentration of ~ 4%, which explains the metallic transport of the lightly-doped YBCO. The chemical potential shift estimated from XPS was more rapid than in the Bi2212 cuprates. Upon hole doping, very rapid spectral weight transfer from high binding energies to the QP feature, even faster than La2-xSrxCuO4, was observed. Comment: 7 pages, 7 figures |
| نوع الوثيقة: | Working Paper |
| الوصول الحر: | http://arxiv.org/abs/1002.0655Test |
| رقم الانضمام: | edsarx.1002.0655 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |