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Titolo:
UNITY RESONANCE AND UNDER-UNITY RESONANCE CONDITIONS IN ASYMMETRICAL DOUBLE-BARRIER STRUCTURES
Autore:
ZHAO XD; YAMAMOTO H; TANIGUCHI K;
Indirizzi:
FUKUI UNIV,DEPT INFORMAT SCI,3-9-1 BUNKYO FUKUI 910 JAPAN
Titolo Testata:
International journal of modern physics b
fascicolo: 17, volume: 9, anno: 1995,
pagine: 2119 - 2137
SICI:
0217-9792(1995)9:17<2119:URAURC>2.0.ZU;2-A
Fonte:
ISI
Lingua:
ENG
Soggetto:
QUANTUM-WELL STRUCTURES; TRANSMISSION COEFFICIENT; HETEROSTRUCTURES; PHYSICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
18
Recensione:
Indirizzi per estratti:
Citazione:
X.D. Zhao et al., "UNITY RESONANCE AND UNDER-UNITY RESONANCE CONDITIONS IN ASYMMETRICAL DOUBLE-BARRIER STRUCTURES", International journal of modern physics b, 9(17), 1995, pp. 2119-2137

Abstract

Resonant tunneling is studied theoretically in asymmetrical double-barrier structures with arbitrary potential profile. Analytical expressions of the transmission coefficient and resonance condition are derived by taking into account the mass difference between the well and barrier layers. It is confirmed that resonant tunneling with unity resonant transmission or under-unity resonant transmission may occur in asymmetrical double-barrier structures. Two independent conditions are required for unity resonant transmission: one is the Phase Difference Condition for Resonance (PDCR) and the other is the Maximum Condition for the Peak Value (MCPV). The under-unity resonant transmission occurs when only PDCR holds. Furthermore, wave functions of an electron at resonance level are calculated and the confining phenomenon is studied.

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Documento generato il 26/01/20 alle ore 00:53:07