TY - JOUR
T1 - Quantitative measurements of the thermal resistance of Andreev interferometers
AU - Jiang, Z.
AU - Chandrasekhar, V.
PY - 2005/7/1
Y1 - 2005/7/1
N2 - Using a local thermometry technique, we have been able to quantitatively measure the thermal resistance RT of diffusive Andreev interferometers. We find that RT is strongly enhanced from its normal-state value at low temperatures, and behaves nonlinearly as a function of the thermal current through the sample. We also find that RT oscillates as a function of magnetic flux with a fundamental period corresponding to one flux quantum Φ0=h 2e, demonstrating the phase-coherent nature of thermal transport in these devices. The magnitude of RT is larger than predicted by recent numerical simulations.
AB - Using a local thermometry technique, we have been able to quantitatively measure the thermal resistance RT of diffusive Andreev interferometers. We find that RT is strongly enhanced from its normal-state value at low temperatures, and behaves nonlinearly as a function of the thermal current through the sample. We also find that RT oscillates as a function of magnetic flux with a fundamental period corresponding to one flux quantum Φ0=h 2e, demonstrating the phase-coherent nature of thermal transport in these devices. The magnitude of RT is larger than predicted by recent numerical simulations.
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U2 - 10.1103/PhysRevB.72.020502
DO - 10.1103/PhysRevB.72.020502
M3 - Article
AN - SCOPUS:33749159056
SN - 1098-0121
VL - 72
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 2
M1 - 020502
ER -