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在上直接培养的超薄膜中增强的铁电性

Suraj S Cheema1, Daewoong Kwon2,3, Nirmaan Shanker4,2

  • 1Department of Materials Science and Engineering, University of California, Berkeley, CA, USA. s.cheema@berkeley.edu.

Nature
|May 21, 2020
PubMed
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Intrinsic semiconductors are highly pure materials with no impurities. At absolute zero, these semiconductors behave as perfect insulators because all the valence electrons are bound, and the conduction band is empty, disallowing electrical conduction. The Fermi level is a concept used to describe the probability of occupancy of energy levels by electrons at thermal equilibrium. In intrinsic semiconductors, the Fermi level is positioned at the midpoint of the energy gap at absolute zero. When...
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