تقرير
Anomalous Enhancement of the Superconducting Transition Temperature in Electron-Doped Cuprate Heterostructures
| العنوان: | Anomalous Enhancement of the Superconducting Transition Temperature in Electron-Doped Cuprate Heterostructures |
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| المؤلفون: | Jin, K., Bach, P., Zhang, X. H., Grupel, U., Zohar, E., Diamant, I., Dagan, Y., Smadici, S., Abbamonte, P., Greene, R. L. |
| المصدر: | Physical Review B 83, 060511(R) (2011) |
| سنة النشر: | 2011 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Superconductivity, Condensed Matter - Materials Science |
| الوصف: | The superconducting transition temperature $T_{c}$ of multilayers of electron-doped cuprates, composed of underdoped (or undoped) and overdoped La% $_{2-x}$Ce$_{x}$CuO$_{4}$ (LCCO) and Pr$_{2-x}$Ce$_{x}$CuO$_{4}$ (PCCO) thin films, is found to increase significantly with respect to the $T_{c}$ of the corresponding single-phase films. By investigating the critical current density of superlattices with different doping levels and layer thicknesses, we find that the $T_{c}$ enhancement is caused by a redistribution of charge over an anomalously large distance. Comment: 4 figures. To appear in PRB as a Rapid Communication |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.83.060511 |
| URL الوصول: | http://arxiv.org/abs/1102.0727 |
| رقم الأكسشن: | edsarx.1102.0727 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.83.060511 |
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