2010年11月
Local transport properties of PrFeAsO0.7 using FIB micro-fabrication technique
PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS
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- 巻
- 470
- 号
- 20
- 開始ページ
- 1473
- 終了ページ
- 1476
- 記述言語
- 英語
- 掲載種別
- DOI
- 10.1016/j.physc.2010.05.141
- 出版者・発行元
- ELSEVIER SCIENCE BV
To evaluate the anisotropy of single crystals with a size of several tens of micrometers, we develop a technique for measuring the local transport properties along both the ab-plane and the c-axis using microsize devices fabricated by a focused ion beam process. We applied this technique to identify the resistivity anisotropy (gamma(rho) = rho(c)/rho(ab),) of the iron-pnictide superconductor PrFeAsO0.7 synthesized under high-pressure. The obtained value of gamma(rho) similar to 120 at 50 K indicates the presence of strong anisotropy, which is comparable to the anisotropy measured by other methods. The weak temperature dependence detected for the normalized resistivity along the c-axis (less than 10% difference at 280 K and 50 K) suggests a peculiar interlayer transport mechanism for PrFeAsO0.7. (C) 2010 Elsevier B.V. All rights reserved,
- リンク情報
- ID情報
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- DOI : 10.1016/j.physc.2010.05.141
- ISSN : 0921-4534
- eISSN : 1873-2143
- Web of Science ID : WOS:000282241800131