Random interactions and spin-glass thermodynamic transition in the hole-doped Haldane system Y${}_{2-x}$Ca${}_x$BaNiO${}_5$

E. Janod, C. Payen, F. -X. Lannuzel +1

Magnetization, DC and AC bulk susceptibility of the $S$=1 Haldane chain system doped with electronic holes, Y${}_{2-x}$Ca${}_x$BaNiO${}_5$ (0$\le$x$\le$0.20), have been measured and an…