Showing papers by "Somnath Ghosh published in 1988"
TL;DR: In this paper, the dependence of the Einstein relation on carrier concentration in heavily doped compensated semiconductors with broadened tail states, both in the presence and absence of a quantizing magnetic field, taking n-InSb as an example, was investigated.
Abstract: An attempt is made to study the dependence of the Einstein relation on carrier concentration in heavily doped compensated semiconductors with broadened tail states, both in the presence and absence of a quantizing magnetic field, taking n-InSb as an example. It is found that, corresponding to a given free electron concentration, the broadening of the tail states modifies the Einstein relation by enhancing the diffusivity–mobility ratio in the absence of magnetic quantization while the reverse is observed in the presence of a quantizing magnetic field. Besides, the rate of decrease of the ratio with increasing magnetic field in the quantum limit is found to be independent of such broadening effects.
Es wird die Abhangigkeit der Einsteinrelation von der Ladungstragerkonzentration in starkdotierten kompensierten Halbleitern mit verbreiterten Auslauferzustanden sowohl mit als auch ohne quantisierendes Magnetfeld mit n-InSb als Beispiel untersucht. Es wird gefunden, das entsprechend einer vorgegebenen Konzentration freier Elektronen die Verbreiterung der Auslauferzustande die Einsteinrelation durch Erhohung des Diffusions–Beweglichkeits-Verhaltnis ohne magnetische Quantisierung erhoht, wahrend mit einem quantisierenden Magnetfeld das Umgekehrte beobachtet wird. Zusatzlich wird gefunden, das die Verringerungsrate des Verhaltnisses mit steigendem Magnetfeld im Quantengrenzzustand unabhangig von solchen Verbreiterungseffekten ist.
6 citations
TL;DR: In this article, the synthesis of N-(E)- (4-methoxystyryl)benzamide (alatamide) has been achieved through the decarboxylation of the enamido-ester.
Abstract: The synthesis of N-(E)- (4-methoxystyryl)benzamide (alatamide) (1), an alkamide constituent of P. alatum (Rutaceae) has been achieved through the decarboxylation of the enamido-ester (9).
TL;DR: In this paper, the photolysis of N-aroyl carbazoles along with the formation of carbazole and the rearranged product ratio is wavelength-dependent.
Abstract: The synthesis of 1- and 3-aroylcarbazoles has been achieved by the photolysis of N-aroylcarbazoles alongwith the formation of carbazole and the rearranged product ratio is wavelength dependent.