Penn State Team Makes Electrons Flow One Direction, No Magnet Needed
Researchers doped bismuth-antimony-telluride thin films to create a quantum anomalous Hall insulator, publishing in Science Advances on July 9.
- Penn State's Morteza Kayyalha led the study with Saint Louis University's Özdemir and El-Ganainy.
- Current confines itself to chiral edge channels, flowing one way with no outside field.
- The team cites Navy, NSF and Air Force funding, eyeing sensors and quantum-signal routing uses.
Why it matters: Matter now performs, on its own, what circuits and lenses were once built by hand to fake.
Penn State University news release ↗ · Jul 16, 20267/16/26 · ✓ Checked✓ Check