Uniaxial-strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study

@article{Tanatar2010UniaxialstrainDO,
  title={Uniaxial-strain detwinning of CaFe2As2 and BaFe2As2: optical and transport study},
  author={M. Tanatar and E. Blomberg and A. Kreyssig and M. Kim and N. Ni and A. Thaler and S. Bud’ko and P. Canfield and A. Goldman and I. Mazin and R. Prozorov},
  journal={Physical Review B},
  year={2010}
}
  • M. Tanatar, E. Blomberg, +8 authors R. Prozorov
  • Published 2010
  • Materials Science, Physics
  • Physical Review B
  • The parent compounds of iron-arsenide superconductors, AFe2As2 (A=Ca, Sr, Ba), undergo a tetragonal to orthorhombic structural transition at a temperature TTO in the range 135 to 205 K depending on the alkaline earth element. Below TTO the free standing crystals split into equally populated structural domains, which mask intrinsic, in-plane, anisotropic properties of the materials. Here we demonstrate a way of mechanically detwinning CaFe2As2 and BaFe2As2. The detwinning is nearly complete, as… CONTINUE READING
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