| dc.contributor | 應物所 | en_US |
| dc.creator (作者) | 郭光宇 | zh_TW |
| dc.creator (作者) | Hsu, Ya-Fen ; Chiang, Tien-Wei ; Guo, Guang-Yu ; Lee, Shang-Fan ; Liang, Jun-Jih | en_US |
| dc.date (日期) | 2012.07 | en_US |
| dc.date.accessioned | 24-Jan-2014 12:53:58 (UTC+8) | - |
| dc.date.available | 24-Jan-2014 12:53:58 (UTC+8) | - |
| dc.date.issued (上傳時間) | 24-Jan-2014 12:53:58 (UTC+8) | - |
| dc.identifier.uri (URI) | http://nccur.lib.nccu.edu.tw/handle/140.119/63547 | - |
| dc.description.abstract (摘要) | We investigate the transport properties of a ferromagnet–superconductor interface within the framework of a modified three-dimensional Blonder–Tinkham–Klapwijk formalism. In particular, we propose that charge inhomogeneity forms via two unique transport mechanisms, namely, evanescent Andreev reflection and evanescent quasiparticle transmission. Furthermore, we take into account the influence of charge inhomogeneity on the interfacial barrier potential and calculate the conductance as a function of bias voltage. Point-contact Andreev reflection (PCAR) spectra often show dip structures, large zero-bias conductance enhancement, and additional zero-bias conductance peak. Our results indicate that transport-induced charge inhomogeneity could be a source of all these anomalous characteristics of the PCAR spectra. ©2012 The Physical Society of Japan | en_US |
| dc.format.extent | 380068 bytes | - |
| dc.format.mimetype | application/pdf | - |
| dc.language.iso | en_US | - |
| dc.relation (關聯) | Journal of the Physical Society of Japan, 81, 084704 | en_US |
| dc.subject (關鍵詞) | Andreev reflection; point contact; spin-polarization; ferromagnet; superconductor | en_US |
| dc.title (題名) | Effect of transport-induced charge inhomogeneity on point-contact Andreev reflection spectra at ferromagnet-superconductor interfaces | en_US |
| dc.type (資料類型) | article | en |
| dc.identifier.doi (DOI) | 10.1143/JPSJ.81.084704 | en_US |
| dc.doi.uri (DOI) | http://dx.doi.org/10.1143/JPSJ.81.084704 | - |
