6533b7ddfe1ef96bd127527b
RESEARCH PRODUCT
Spatial development of multiple-gap states in nonequilibrium superconductors
Helmut KinderPaul LeidererH. SchreyerWerner Dietschesubject
SuperfluiditySuperconductivityPhysicsTunnel effectHelium-4Condensed matter physicsBand gapPhononCondensed Matter::SuperconductivityQuasiparticleddc:530Condensed Matter::Mesoscopic Systems and Quantum Hall EffectSuperfluid helium-4description
We have studied the gap instability in a superconductor under tunneling injection at high voltages by probing the spatial distribution of the phonon emission. A high sensitivity was achieved by using the fountain pressure of superfluid helium for detecting the phonons. Spatial structures were observed at gap depressions as small as 2%. From their spatial development we find that the quasiparticles diffuse into regions where their density is higher.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1985-02-01 | Physical Review B |