Thermal evolution of antiferromagnetic correlations and tetrahedral bond angles in superconducting FeTe1−xSex

Zhijun Xu,1,2 J. A. Schneeloch,3,4 Jinsheng Wen,5 E. S. Božin,3 G. E. Granroth,6 B. L. Winn,7 M. Feygenson,8 R. J. Birgeneau,1,2 Genda Gu,3 I. A. Zaliznyak,3 J. M. Tranquada,3 and Guangyong Xu3,* 1Physics Department, University of California, Berkeley, California 94720, USA 2Materials Science Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 3Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, New York 11973, USA 4Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794, USA 5Center for Superconducting Physics and Materials, National Laboratory of Solid State Microstructures and Department of Physics, Nanjing University, Nanjing 210093, China 6Neutron Data Analysis and Visualization Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 7Quantum Condensed Matter Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA 8Chemical and Engineering Materials Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA (Received 25 December 2015; revised manuscript received 24 February 2016; published 14 March 2016)