The estimation of coherence length for electron-doped superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$

التفاصيل البيبلوغرافية
العنوان: The estimation of coherence length for electron-doped superconductor Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$
المؤلفون: Charikova, T. B., Harus, G. I., Shelushinina, N. G., Sochinskaya, O. E.
سنة النشر: 2010
المجموعة: Condensed Matter
مصطلحات موضوعية: Condensed Matter - Superconductivity
الوصف: Results of low-temperature upper critical field measurements for Nd$_{2-x}$Ce$_x$CuO$_{4+\delta}$ single crystals with various $x$ and nonstoichiometric disorder ($\delta$) are presented. The coherence length of pair correlation $\xi$ and the product $k_F$$\xi$, where $k_F$ is the Fermi wave vector, are estimated. It is shown that for investigated single crystals parameter $k_F$$\xi$ $\cong$ 100 and thus phenomenologically NdCeCuO - system is in a range of Cooper-pair-based (BCS) superconductivity.
Comment: 8 pages, 3 figures, 2 tables
نوع الوثيقة: Working Paper
DOI: 10.1063/1.3592218
URL الوصول: http://arxiv.org/abs/1010.4365
رقم الانضمام: edsarx.1010.4365
قاعدة البيانات: arXiv