Superconductivity of FeSe0.5Te0.5 Thin Films Grown by Pulsed Laser Deposition

被引：49

作者：

Imai, Yoshinori ^{[1
,3
]}

Tanaka, Ryo ^{[1
,3
]}

Akiike, Takanori ^{[1
,3
]}

Hanawa, Masafumi ^{[2
,3
]}

Tsukada, Ichiro ^{[2
,3
]}

Maeda, Atsutaka ^{[1
,3
]}

机构：

[1] Univ Tokyo, Dept Basic Sci, Meguro Ku, Tokyo 1538902, Japan

[2] Cent Res Inst Elect Power Ind, Kanagawa 2400196, Japan

[3] Japan Sci & Technol Agcy, Transformat Res Project Iron Pnictides, Chiyoda Ku, Tokyo 1020075, Japan

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS | 2010年 / 49卷 / 02期

关键词：

FESE;

D O I：

10.1143/JJAP.49.023101

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

FeSe0.5Te0.5 thin films with a PbO-type structure are successfully grown on MgO(100) and LaSrAlO4(001) substrates from FeSe0.5Te0.5 or FeSe0.5Te0.75 polycrystalline targets by pulsed laser deposition. The film deposited on the MgO substrate (film thickness: similar to 55 nm) shows superconductivity at 10.6 K (onset) and 9.2 K (zero resistivity). On the other hand, the film deposited on the LaSrAlO4 substrate (film thickness: similar to 250 nm) exhibits superconductivity at 5.4 K (onset) and 2.7 K (zero resistivity). This suggests the strong effect of substrate materials and/or the c-axis length on the superconducting properties of FeSe0.5Te0.5 thin films. (C) 2010 The Japan Society of Applied Physics

引用

收藏

页数：5

相关论文

共 22 条

[1] High quality epitaxial FeSe0.5Te0.5 thin films grown on SrTiO3 substrates by pulsed laser deposition [J].

Bellingeri, E. ;

Buzio, R. ;

Gerbi, A. ;

Marre, D. ;

Congiu, S. ;

Cimberle, M. R. ;

Tropeano, M. ;

Siri, A. S. ;

Palenzona, A. ;

Ferdeghini, C. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2009, 22 (10)

[2] Superconductivity close to magnetic instability in Fe(Se1-xTex)0.82 [J].

Fang, M. H. ;

Pham, H. M. ;

Qian, B. ;

Liu, T. J. ;

Vehstedt, E. K. ;

Liu, Y. ;

Spinu, L. ;

Mao, Z. Q. .

PHYSICAL REVIEW B, 2008, 78 (22)

[3] Preparation and superconductivity of iron selenide thin films [J].

Han, Y. ;

Li, W. Y. ;

Cao, L. X. ;

Zhang, S. ;

Xu, B. ;

Zhao, B. R. .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2009, 21 (23)

[4] First Investigation of Pressure Effects on Transition from Superconductive to Metallic Phase in FeSe0.5Te0.5 [J].

Horigane, Kazumasa ;

Takeshita, Nao ;

Lee, Chul-Ho ;

Hiraka, Haruhiro ;

Yamada, Kazuyoshi .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2009, 78 (06)

[5] Superconductivity in the PbO-type structure α-FeSe [J].

Hsu, Fong-Chi ;

Luo, Jiu-Yong ;

Yeh, Kuo-Wei ;

Chen, Ta-Kun ;

Huang, Tzu-Wen ;

Wu, Phillip M. ;

Lee, Yong-Chi ;

Huang, Yi-Lin ;

Chu, Yan-Yi ;

Yan, Der-Chung ;

Wu, Maw-Kuen .

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA, 2008, 105 (38) :14262-14264

[6] CRITICAL-FIELD ANISOTROPY OF A SINGLE-CRYSTAL GDBA2CU3OX AND HOBA2CU3OX [J].

IYE, Y ;

TAMEGAI, T ;

TAKEYA, H ;

TAKEI, H .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, 1987, 26 (11) :L1850-L1852

[7] Iron-based layered superconductor La[O1-xFx]FeAs (x=0.05-0.12) with Tc=26 K [J].

Kamihara, Yoichi ;

Watanabe, Takumi ;

Hirano, Masahiro ;

Hosono, Hideo .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2008, 130 (11) :3296-+

[8] Critical microwave-conductivity fluctuations across the phase diagram of superconducting La2-xSrxCuO4 thin films [J].

Kitano, H ;

Ohashi, T ;

Maeda, A ;

Tsukada, I .

PHYSICAL REVIEW B, 2006, 73 (09)

[9] Superconducting Fe1+δSe1-xTex thin films: growth, characterization and properties [J].

Kumary, T. Geetha ;

Baisnab, Dipak Kumar ;

Janaki, J. ;

Mani, Awadhesh ;

Satya, A. T. ;

Sarguna, R. M. ;

Ajikumar, P. K. ;

Tyagi, A. K. ;

Bharathi, A. .

SUPERCONDUCTOR SCIENCE & TECHNOLOGY, 2009, 22 (09)

[10] Pnictogen height as a possible switch between high-Tc nodeless and low-Tc nodal pairings in the iron-based superconductors [J].

Kuroki, Kazuhiko ;

Usui, Hidetomo ;

Onari, Seiichiro ;

Arita, Ryotaro ;

Aoki, Hideo .

PHYSICAL REVIEW B, 2009, 79 (22)