Structural phase transitions in the kagome lattice based materials   Cs2-xRbxSnCu3F12 (x = 0, 0.5, 1.0, 1.5)
  The solid solution Cs2-xRbxSnCu3F12 (x = 0, 0.5, 1.0, 1.5) has been investigated crystallographically between 100 and 300 K using synchrotron X-ray powder diffraction and, in the case of x = 0, neutron powder diffraction. 
L. J. Downie, C. Black, E. I. Ardashnikova, C. C. Tang, A. N.   Vasiliev, A. N. Golovanov, P. S. Berdonosov, V. A. Dolgikh, ...
cond-mat.str-el cond-mat.mtrl-sci