Impurities in quasi-one-dimensional Heisenberg systems: The effect of anisotropy

J. C. Schouten, F. Boersma, K. Kopinga, W.J.M. De Jonge

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Samenvatting

The effect of small concentrations of impurities on the magnetic behavior of quasi-one-dimensional Heisenberg systems with a small orthorhombic anisotropy has been studied both theoretically and experimentally. The predicted reduction of the ordering temperature TN as a function of impurity concentration x is compared with experimental data on (CH3)2NH2Mn1-xCdxCl3 (DMMC:Cd), (CH3)2NH2Mn1-xCuxCl3 (DMMC:Cu), and CsMn1-xCuxCl3 2H2O (CMC:Cu). We also measured the magnetic phase diagram of DMMC:Cd (x=0.77%) along each of the three principal directions. The observed behavior can be qualitatively explained by the theory presented in this paper.

Originele taal-2Engels
Pagina's (van-tot)4084-4089
Aantal pagina's6
TijdschriftPhysical Review B
Volume21
Nummer van het tijdschrift9
DOI's
StatusGepubliceerd - 1 jan. 1980

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