Nanoscale phase separation in the iron chalcogenide superconductor K0.8Fe1.6Se2 as seen via scanning nanofocused x-ray diffraction
Journal article published in 2011 by
A. Ricci,
N. Poccia,
G. Campi,
B. Joseph,
G. Arrighetti,
L. Barba 
,
M. Reynolds,
M. Burghammer,
H. Takeya,
Y. Mizuguchi,
Y. Takano,
M. Colapietro,
N. L. Saini,
A. Bianconi
,
M. Reynolds,
M. Burghammer,
H. Takeya,
Y. Mizuguchi,
Y. Takano,
M. Colapietro,
N. L. Saini,
A. Bianconi
Abstract
Advanced synchrotron radiation focusing down to a size of 300 nm has been used to visualize nanoscale phase separation in the K0.8Fe1.6Se2 superconducting system using scanning nanofocus single-crystal X-ray diffraction. The results show an intrinsic phase separation in K0.8Fe1.6Se2 single crystals at T