High Temperature Behaviour of Strontium Uranates

192-19

Enhancement of the Power Output of Photogalvanic Cells

342-34

Crystallographic and magnetic phase transition in TlMnCl<SUB>3</SUB>

The results of our NMR, EPR and magnetic susceptibility measurements in the paramagnetic state of TlMnCl3 are reported here. The NMR paramagnetic shift of thallium is found to be small but positive. Mn2+ EPR line is exchange narrowed. The susceptibility measurements indicate an antiferromagnetic transition. The heat of crystallographic phase transition &#916;H, in TlMnCl3 has been measured using differential scanning calorimetry. The crystallographic phase transition appears to be first order and &#916;H is unusually low viz. 10 cal mole&#8722;1. In the case of KMnF3 &#916;H, which is reported here for the first time, is determined to be 2 cal mole&#8722;1

Study of Ferrous- Thionine System : Part II-Power Output in Homogeneous & Heterogeneous Type Photogalvanic Cells

210-21

Study of Ferrous-Thionine System Part I-Photogalvanic Effect in Homogeneous Type Cells

206-20

Study of Polarisatiou in Ferrous-Thionine Photogalvanic Cell

718-72