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Pis'ma v Zhurnal Èksperimental'noi i Teoreticheskoi Fiziki, 2004, Volume 80, Issue 6, Pages 489–492
(Mi jetpl2128)
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This article is cited in 10 scientific papers (total in 10 papers)
CONDENSED MATTER
Transition of the near-surface $\delta$ layer in an Al/$\delta$(Si)–GaAs tunnel structure to the insulating state under pressure
E. M. Dizhura, A. N. Voronovskiia, A. V. Fedorova, I. N. Kotel’nikovb, S. E. Dizhurb a Institute for High Pressure Physics, Russian Academy of Sciences
b Kotel'nikov Institute of Radio Engineering and Electronics, Russian Academy of Sciences
Abstract:
The tunnel and lateral conductivities of an Al/GaAs tunnel structure with a surface Si $\delta$-doped layer are measured at liquid-helium temperatures under a hydrostatic pressure of up to 3 GPa. Transition of the $\delta$ layer to the insulating state at a pressure of about 2 GPa is revealed. During this transition, the tunnel resistance increases steadily (on a logarithmic scale) and the zero-bias anomaly in the tunnel resistance exhibits a sharp peak. These results are interpreted in terms of representations of the effect of pressure on the energy-band structure and behavior of DX levels.
Received: 12.08.2004
Citation:
E. M. Dizhur, A. N. Voronovskii, A. V. Fedorov, I. N. Kotel’nikov, S. E. Dizhur, “Transition of the near-surface $\delta$ layer in an Al/$\delta$(Si)–GaAs tunnel structure to the insulating state under pressure”, Pis'ma v Zh. Èksper. Teoret. Fiz., 80:6 (2004), 489–492; JETP Letters, 80:6 (2004), 433–435
Linking options:
https://www.mathnet.ru/eng/jetpl2128 https://www.mathnet.ru/eng/jetpl/v80/i6/p489
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