Abstract
The susceptibility of (CH3)2NH2Mn 1-xCdxCl3, a good quasi-1d Heisenberg system, has been measured along the three principal crystallographic directions for 1.5<T<4.2K and x=0.067. The experimental data are compared successively with the susceptibility of the exactly soluble isotropic Heisenberg chain, the predictions based on numerical calculations of a Heisenberg chain with orthorhombic anisotropy, and a newly developed short-chain approximation. The effective anisotropy per spin is found to decrease by dilution, which is supported by measurement of the spin-flop transition field versus temperature for x=0.004 and 0.008.
Original language | English |
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Article number | 024 |
Pages (from-to) | 783-793 |
Number of pages | 11 |
Journal | Journal of Physics C: Solid State Physics |
Volume | 15 |
Issue number | 4 |
DOIs | |
Publication status | Published - 1 Dec 1982 |