Physical and magnetic properties of Ba(Fe1xMnx)2As2 single crystals

A. Thaler, H. Hodovanets, M. S. Torikachvili, S. Ran, A. Kracher, W. Straszheim, J. Q. Yan, E. Mun, and P. C. Canfield
Phys. Rev. B 84, 144528 – Published 31 October 2011

Abstract

Single crystals of Ba(Fe1xMnx)2As2, 0<x<0.148, have been grown and characterized by structural, magnetic, electrical transport, and thermopower measurements. Although growths of single crystals of Ba(Fe1xMnx)2As2 for the full 0x1 range were made, we find evidence for phase separation (associated with some form of immiscibility) starting for x>0.1–0.2. Our measurements show that whereas the structural/magnetic phase transition found in pure BaFe2As2 at 134 K is initially suppressed by Mn substitution, superconductivity is not observed at any substitution level. Although the effect of hydrostatic pressure up to 20 kbar in the parent BaFe2As2 compound is to suppress the structural/magnetic transition at the approximate rate of 0.9 K/kbar, the effects of pressure and Mn substitution in the x=0.102 compound are not cumulative. Phase diagrams of transition temperature versus substitution concentration x based on electrical transport, magnetization, and thermopower measurements have been constructed and compared to those of the Ba(Fe1xTMx)2As2 (TM= Co and Cr) series.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
12 More
  • Received 9 September 2011

DOI:https://doi.org/10.1103/PhysRevB.84.144528

©2011 American Physical Society

Authors & Affiliations

A. Thaler1, H. Hodovanets1, M. S. Torikachvili1,2, S. Ran1, A. Kracher1, W. Straszheim1, J. Q. Yan1, E. Mun1,*, and P. C. Canfield1

  • 1Ames Laboratory and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
  • 2Department of Physics, San Diego State University, San Diego, California 92182, USA

  • *Present address: MPA-CMMS, Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 84, Iss. 14 — 1 October 2011

Reuse & Permissions
Access Options
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review B

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×