Cover Image

Single crystal growth and physical properties of superconducting ferro-pnictides Ba(Fe, Co)2As2 grown using self-flux and Bridgman techniques

We have employed the high temperature solutions growth technique and the Bridgman technique to grow cm-size high-quality single crystals of pristine BaFe2As2 (Ba122) and its Co-doped superconducting variants. In the first approach, self-flux (Fe, Co)As was used to achieve a homogeneous melt of compo...

Full description

Saved in:
Bibliographic Details
Main Authors: Aswartham, Saicharan (Author) , Nacke, C. (Author) , Friemel, G. (Author) , Leps, N. (Author) , Wurmehl, S. (Author) , Wizent, N. (Author) , Hess, C. (Author) , Klingeler, Rüdiger (Author) , Behr, G. (Author) , Singh, S. (Author) , Büchner, B. (Author)
Format: Article (Journal)
Language:English
Published: 2011
In: Journal of crystal growth
Year: 2011, Volume: 314, Issue: 1, Pages: 341-348
DOI:10.1016/j.jcrysgro.2010.11.149
Online Access:Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.jcrysgro.2010.11.149
Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0022024810011309
Get full text
Author Notes:S. Aswartham, C. Nacke, G. Friemel, N. Leps, S. Wurmehl, N. Wizent, C. Hess, R. Klingeler, G. Behr, S. Singh, B. Büchner
Description
Summary:We have employed the high temperature solutions growth technique and the Bridgman technique to grow cm-size high-quality single crystals of pristine BaFe2As2 (Ba122) and its Co-doped superconducting variants. In the first approach, self-flux (Fe, Co)As was used to achieve a homogeneous melt of composition Ba(Fe, Co)3.1As3.1 at T=1463K. The melt was then cooled slowly under a temperature gradient in a double-wall crucible assembly to obtain large and flux-free single crystals of Ba(Fe, Co)2As2. In the second approach, single crystals were grown directly from a stoichiometric Ba(Fe, Co)2As2 melt at T=1723K employing the Bridgman technique associated with a vertical tube furnace. Using both techniques single crystals with lateral dimensions up to 25×10mm2 and thickness up to 1mm were obtained. Details of the two methods are given and a comparative study of the magnetic and transport properties of the single crystals obtained using the two methods is presented.
Item Description:Available online 3 December 2010
Im Titel ist die Zahl 2 tiefgestellt
Gesehen am 23.03.2022
Physical Description:Online Resource
DOI:10.1016/j.jcrysgro.2010.11.149

Similar Items