Research work · 1979

Antiferromagnetism in MnxNi1-xCl2·nH2O

N. T. Lam, Harold Forstat

Journal of the Physical Society of Japan

Abstract

We report low-temperature specific heat measurements on four samples with chemical formulas Mn x Ni 1- x Cl 2 · n H 2 O ( n =4 or 6). Their compositions range from x =0.88 to x =0.16. They all show fairly well-defined antiferromagnetic-paramagnetic transitions in the liquid helium 4 region (1.68 K to 4.51 K). A simple random mean field theory fails to account for the variation of critical temperature with composition.

DOI: 10.1143/jpsj.47.481