تقرير
Comparative study of the pressure effects on the magnetic penetration depth in electron- and hole-doped cuprate superconductors
| العنوان: | Comparative study of the pressure effects on the magnetic penetration depth in electron- and hole-doped cuprate superconductors |
|---|---|
| المؤلفون: | Di Castro, D., Khasanov, R., Shengelaya, A., Conder, K., Jang, D. -J., Park, M. -S., Lee, S. -I., Keller, H. |
| المصدر: | J. Phys.: Condens. Matter 21, N. 27, 275701 (2009). |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity |
| الوصف: | The effect of pressure on the magnetic penetration depth $\lambda$ was tested in the hole-doped superconductor YBa2Cu3O(7-d) and in the electron-doped one Sr0.9La0.1CuO2 by means of magnetization measurements. Whereas a large change of $\lambda$ was found in YBa2Cu3O(7-d), confirming the non-adiabatic character of the electron-phonon coupling in hole-doped superconductors, the same quantity is not affected by pressure in the electron-doped Sr0.9La0.1CuO2, suggesting a close similarity of the latter to conventional adiabatic BCS superconductors. The present results imply a remarkable difference between the electronic properties of hole-doped cuprates and the electron-doped Sr0.9La0.1CuO2, giving a strong contribution to the long debated asymmetric consequences of hole- and electron-doping in cuprate superconductors. Comment: 9 pages, 3 figures |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1003.3628 |
| رقم الأكسشن: | edsarx.1003.3628 |
| قاعدة البيانات: | arXiv |
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