Low-energy atomic tunneling has been observed by acoustic methods in the superconductor YBa2Cu3O7 at very low temperature. An estimate of the tunneling-system density of states yields a magnitude sufficient to account for the linear term observed in recent heat-capacity measurements.
|Original language||English (US)|
|Number of pages||3|
|Journal||Physical Review B|
|State||Published - 1987|
All Science Journal Classification (ASJC) codes
- Condensed Matter Physics