Observation of a Spin-Glass Transition in theS=1 Heisenberg Antiferromagnet Ni(C2H8N2)2NO2(ClO4)
摘要:
Dc, linear ac and nonlinear ac susceptibility measurements on a nominally pure single crystal of the S=1 linear chain Heisenberg antiferromagnet Ni(C2H8N2)(2)NO2ClO4 (NENP) show clearly that a spin-glass transition takes place in this sample. A possible origin of this spin-glass freezing is discussed.