Magnetic and thermodynamic properties of Mn(NH4)2(SO4)2⋅6H2O below 1°K and at fields up to 24000 G parallel to the b axis
- 1 January 1975
- journal article
- research article
- Published by AIP Publishing in The Journal of Chemical Physics
- Vol. 62 (1) , 200-207
- https://doi.org/10.1063/1.430263
Abstract
The heat capacity of Mn(NH4)2(SO4)2⋅6H2O has been measured directly in fields of 0, 1400, 2800, 6800, 12600, 16800, and 22300 G, from 0.4 to 1°K, along with observation of magnetization both isothermally and isentropically. Temperatures, entropies, and heat capacities have been derived for the region between 0.1 and 0.4°K, where direct measurements were not possible. Deviations from ideal behavior have been interpreted in terms of nuclear spin polarization of 55Mn and of (electronic spin) exchange.Keywords
This publication has 6 references indexed in Scilit:
- Magnetic behavior of Mn(NH4)2(SO4)2 · 6H2O in its Curie region in fields directed along theb-axisJournal of Low Temperature Physics, 1970
- Heat Capacity, Entropy, and Intensity of Magnetization of MN(NH4)2(SO4)2·6H2O from 1 to 4°K in Fields up to 24 000 Oe Parallel to the b AxisThe Journal of Chemical Physics, 1970
- Heat Capacity of Mn·6O near Its Critical PointPhysical Review B, 1968
- Heat Capacity and Entropy of Mn(NH4)2(SO4)2·6H2O from 1° to 4°K in Fields up to 24 000 Oe Perpendicular to the b Axis; Direct Observation of Magnetic ImperfectionThe Journal of Chemical Physics, 1967
- Measurements of the Specific Heats of Three Magnetic Salts at Low TemperaturesPhysical Review B, 1966
- Polarization and Alignment of NucleiPhysical Review B, 1951