The Semiconductor-Semimetal Transition Bypassing Excitonic Phases (Selected Topics in Semiconductor Physics<特集>) -- (Phase Transition)

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概要

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• The condition for the occurrence of excitonic phases is examined. It is shown that even for a simple band structure of two isotropic conduction band minima and a single isotropic valence band maximum the excitonic phase occurs only when the effective mass of an electron is 0.7 times heavier than that of a hole and that the condition for occurrence of excitonic phases becomes more severe for more complicated band structures. It is suggested that the first order semiconductor-semimetal transition bypassing excitonic phases is likely to occur in many real indirect gap semiconductors when one reduces the energy gap continuously.

• 理論物理学刊行会の論文
• 1975-11-29

著者

• 上村 洸

  Department Of Applied Physics Science University Of Tokyo

• Kamimura Hiroshi

  Department Of Applied Physics . Faculty Of Science Tokyo University Of Science

• Kuramoto Yoshio

  Cavendish Laboratory

• Kamimura Hiroshi

  Department Of Physics University Of Tokyo : Department Of Physics University Of Tokyo

• KAMIMURA Hiroshi

  Department of Physics, University of Tokyo : Department of Physics, University of Tokyo

• Kamimura Hiroshi

  Department of Physics Faculty of Science,University of Tokyo

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