A.K. Dutta

TL;DR: In this paper, the principal magnetic susceptibilities, electrical conductivities and thermoelectric powers of Sb2S3 single crystals have been studied in the temperature range 100-550 K.

TL;DR: In this article, a comparison of the emission and exciation spectra of nonamphiphilic p-terphenyl (TP) in solution, in Langmuir-Blodgett (LB) films, and in ethanol-water mixtures was made.

TL;DR: In this article, the magnetic susceptibility in the three principal crystallographic directions, and the electrical conductivity and thermoelectric power parallel and perpendicular to the basal plane of Sb 2 Se 3 single crystals, have been measured over the temperature range 100-550 K. The different results obtained from the magnetic and electric studies have been accounted for on the basis of non-stoichiometry of the compound and localized lone electrons.

TL;DR: In this article, a mechanism of carrier excitation was proposed to explain the apparent contradiction in the electric and magnetic behavior of the antimony telluride single crystals, and the values of the carrier parameters have also been obtained.

Abstract: Mono- and multiayers of curysene mixed with stearic acid have been incorporated into Langmuir-Blodgett (LB) films. This is itself of interest due tho the conamphiphilec nature of chrysene. Repulsive interaction between chrysece and the fatty acid have been observed. Absorption spectra of chrysene films have beeb completed with that of solution. A striking similarity between emission spectra of chrysene in LB film and in an ethanol-water mixture has been observed and compared with chrysene microcrystal emission spectra. The repulsive interaction along with the spectroscopic studies have been discussed in the framework of aggregates of two-dimensional crystals of chrysene in LB films. The possibility of any structural phase transition has been ruled outn from the exciation spectra.