Novel magnetic phases in a Gd2Ti2O7 pyrochlore for a field applied along   the [100] axis
  We report on longitudinal and transverse magnetisation measurements performed on single crystal samples of Gd2Ti2O7 for a magnetic field applied along the [100] direction. The measurements reveal the presence of previously unreported phases in fields below 10 kOe in an addition to the higher-field-induced phases that are also seen for H//[111], [110], and [112]. The proposed H-T phase diagram for the [100] direction looks distinctly different from all the other directions studied previously. 
O. A. Petrenko, M. R. Lees, G. Balakrishnan, V. N. Glazkov, S. S.   Sosin
cond-mat.str-el cond-mat.mtrl-sci