Upper critical field, hall effect and magnetoresistance in the iron-based layered superconductor lafeaso(0.9)f(0.1-delta)
文献类型：期刊论文
| 作者 | Zhu, Xiyu1; Yang, Huan; Fang, Lei; Mu, Gang; Wen, Hai-Hu |
| 刊名 | Superconductor science & technology
 |
| 出版日期 | 2008-10-01 |
| 卷号 | 21期号:10页码:5 |
| ISSN号 | 0953-2048 |
| DOI | 10.1088/0953-2048/21/10/105001 |
| 通讯作者 | Zhu, xiyu() |
| 英文摘要 | By using a two-step method, we successfully synthesized the new iron-based superconductor lafeaso(0.9)f(0.1-delta). the resistive transition curves under different magnetic fields were measured, leading to the determination of the upper critical field h(c2)(t) of this new superconductor. the value of h(c2) at zero temperature is estimated to be about 50 t roughly. in addition, the hall effect and magnetoresistance were measured in a wide temperature region. a negative hall coefficient r(h) has been found, implying a dominant conduction mainly by electron-like charge carriers in this material. the charge carrier density determined at 100 k is about 9.8 x 10(20) cm(-3), which is close to the cuprate superconductors. it is further found that the magnetoresistance does not follow kohler's law. meanwhile, the different temperature-dependent behaviors of resistivity, hall coefficient and magnetoresistance have anomalous properties at about 230 k, which may be induced by some exotic scattering mechanism. |
| WOS关键词 | QUATERNARY COMPOUND |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied ; Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000259699500002 |
| 出版者 | IOP PUBLISHING LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2373668 |
| 专题 | 物理研究所 |
| 通讯作者 | Zhu, Xiyu |
| 作者单位 | 1.Natl Lab Superconduct, Inst Phys, Beijing 100190, Peoples R China 2.Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhu, Xiyu,Yang, Huan,Fang, Lei,et al. Upper critical field, hall effect and magnetoresistance in the iron-based layered superconductor lafeaso(0.9)f(0.1-delta)[J]. Superconductor science & technology,2008,21(10):5. |
| APA | Zhu, Xiyu,Yang, Huan,Fang, Lei,Mu, Gang,&Wen, Hai-Hu.(2008).Upper critical field, hall effect and magnetoresistance in the iron-based layered superconductor lafeaso(0.9)f(0.1-delta).Superconductor science & technology,21(10),5. |
| MLA | Zhu, Xiyu,et al."Upper critical field, hall effect and magnetoresistance in the iron-based layered superconductor lafeaso(0.9)f(0.1-delta)".Superconductor science & technology 21.10(2008):5. |
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来源：物理研究所
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