Spin Flopping in LiCuCl3·2H2O

Abstract
Single crystal magnetic measurements of LiCuCl3·2H2O in the liquid‐helium temperature region revealed the presence of a spin‐flop state above 9 kG. By means of the magneto‐caloric effect it has been possible to trace out the antiferromagnetic‐spin‐flop boundary. A least squares fit of the data indicated that this boundary could be represented by Hc=9.36+0.078T+0.173T2 with Hc in kG. The spin‐flop‐paramagnetic and antiferromagnetic‐paramagnetic boundaries were obtained by specific‐heat measurements. Calculations gave the anisotropy field (HA) as 3.0 kG, and the exchange field (HE) as 11.0 kG. All of the above measurements were made with the external field parallel to the easy axis of magnetization.

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