Absorption spectrum of manganous halides tetrahydrates in the antiferromagnetic states

1 January 1959

journal article
Published by EDP Sciences in Journal de Physique et le Radium

Vol. 20 (2-3) , 352-354
https://doi.org/10.1051/jphysrad:01959002002-3035200

Abstract

We have observed the absorption spectrum of MnCl2.4H2O and MnBr2.4H2O between 20 °K and 1,2 °K in order to study the antiferromagnetic states spectroscopically. The molecular fields which are deduced from the measurements of wave number as a function of temperature and of spectral polarisation as a function of field are in good agreement with Henry's results. The preferred direction for the two salts is found to be the c-axis or near to the c-axis. The critical field is between 2,500 Ø and 5,000 Ø for MnCl2.4H 2O and between 7,500 Ø and 10,000 Ø for MnBr2.4H2O at 1,2 °K respectively

Keywords

This publication has 2 references indexed in Scilit:

On the Absorption Spectra of Complex Ions II
Journal of the Physics Society Japan, 1954
Antiferromagnetic $H - T$ Boundaries and Apparent Molecular Fields for Mn ${Cl}_{2}$ ·4 $H_{2}$ O and Mn ${Br}_{2}$ ·4 $H_{2}$ O
Physical Review B, 1954