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Issue: April 2009, page: 3
Future for electronics opened up with domain walls that conduct electricity
Researchers at the Lawrence Berkeley National Laboratory, University of California (UC), USA, have discovered a property of domain walls never seen before in bismuth ferrite (BiFe03), an oxide compound. Although BiFe03 is an insulator, the researchers found that between domains having different electrical polarization, the domain walls themselves – just 2 nm wide – conduct electricity at room temperature.
