ECRYS - 93
J. Phys. IV France 03 (1993) C2-129-C2-132
LT-structural changes of the (NbSe4)10I3 compound, a quasi-one dimensional charge density wave systemZ. VUCIC1, A. MEETSMA2 and J.L. DE BOER2
1 Permanent nddress fiom septeinber 1 1993): Institute of Physics of the University, Zagreb) Bijenicka 46, P.O. Box 304, 4100 Zagreb, Republic of Croatia
2 University of Groningen, Laboratory of Chemical Physics, Materials Science Center, Nyenborgh 4, 9747 AG Groningen, The Netherlands
In order to study the structural background of the giant thermal hysteresis observed in the thermopower measurements  of the CDW system (NbSe4)10I3, zeroth-order Weissenberg and oscillation photographs were taken at temperatures below Peierls transition. A reversible transformation of the room temperature tetragonal lattice into four symmetricaly equivalent monoclinic domains was observed with the monoclinic angle behaving like an order parameter.
© EDP Sciences 1993