Phonon-Assisted Tunneling in Metal-Oxide-Pb1-xSnxTe Junctions

Autor:	Akihiro Moritani, Chihiro Hamaguchi, Masamichi Yokogawa, Junkichi Nakai, Tsuguru Shirakawa
Rok vydání:	1977
Předmět:	Physics Condensed matter physics Antisymmetric relation Phonon Oxide General Physics and Astronomy Metal chemistry.chemical_compound chemistry visual_art visual_art.visual_art_medium Zero bias Atomic physics Quantum tunnelling
Zdroj:	Journal of the Physical Society of Japan. 43:108-113
ISSN:	1347-4073 0031-9015
DOI:	10.1143/jpsj.43.108
Popis:	Electron tunneling effects of Pb 1- x Sn x Te are investigated in M-I-S junctions. Phonon-assisted tunneling effects are observed in the d 2 I /d V 2 - V characteristics. Assignments of four peaks which appear antisymmetric with respect to zero bias in the d 2 I /d V 2 - V characteristics are made by measuring the composition-dependence of energy positions of these peaks. These assignments are examined from the group theoretical point of view. The energies of the LO phonons at \(\varGamma\) point are 14.3±0.5 meV for PbTe and 17.1±0.5 meV for SnTe, which are in good agreement with the results obtained by the other methods.
Databáze:	OpenAIRE
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