@inproceedings{6012042b3b134db0bfff450c4d145781,
title = "Crystal growth and characterization of FeAs-based superconductors",
abstract = "FeAs-based single crystals of Ba1-xKxFe 2As2 and Sr1-xKxFe 2As2 were grown in a Mo capsule at the temperatures from 1200°C down to 850°C by a FeAs-self-flux method. Most of their sizes were approximately 0.2-0.5 mm. A larger single crystal of Sr Fe 2As2 about 7mm in diameter was obtained by the same procedure, as appeared in a round-shape. Most of the time, potassium-doped crystals tends to be smaller than undoped ones. An example of Tc for a Ba1-xKxFe2As2 single crystal measured with a SQUID magnetometer, which indicates Tc at 38 K. Tc s are sometimes lower dependent on the potassium composition. The substitution reaction between SrFe2As2 and potassium was examined. An undoped crystal absorbed potassium at around 600°C and showed superconductivity by the reaction.",
keywords = "Crystal growth, Iron-arsenides, Superconductor",
author = "Hiroyuki Takeya and Shigeru Kasahara and Kazuto Hirata",
year = "2010",
doi = "10.4028/www.scientific.net/MSF.638-642.1412",
language = "English",
isbn = "0878492941",
series = "Materials Science Forum",
publisher = "Trans Tech Publications Ltd",
pages = "1412--1415",
editor = "Tara Chandra and Tara Chandra and Tara Chandra and N. Wanderka and N. Wanderka and N. Wanderka and Walter Reimers and Walter Reimers and Walter Reimers and M. Ionescu and M. Ionescu and M. Ionescu",
booktitle = "THERMEC 2009",
note = "6th International Conference on Processing and Manufacturing of Advanced Materials - THERMEC'2009 ; Conference date: 25-08-2009 Through 29-08-2009",
}