TY - JOUR
T1 - Phase dependent thermopower in andreev interferometers
AU - Eom, Jonghwa
AU - Chien, Chen Jung
AU - Chandrasekhar, Venkat
PY - 1998/7/13
Y1 - 1998/7/13
N2 - We report measurements of the thermopower S of mesoscopic Andreev interferometers, which are hybrid loops with one arm fabricated from a superconductor (Al), and one arm from a normal metal (Au).S depends on the phase of electrons in the interferometer, oscillating as a function of magnetic flux with a period of one flux quantum Φ0=h/2e.The magnitude of S increases as the temperature T is lowered, reaching a maximum at T ∼0.14K, and decreases at lower temperatures. The symmetry of S oscillations with respect to magnetic flux depends on the topology of the sample.
AB - We report measurements of the thermopower S of mesoscopic Andreev interferometers, which are hybrid loops with one arm fabricated from a superconductor (Al), and one arm from a normal metal (Au).S depends on the phase of electrons in the interferometer, oscillating as a function of magnetic flux with a period of one flux quantum Φ0=h/2e.The magnitude of S increases as the temperature T is lowered, reaching a maximum at T ∼0.14K, and decreases at lower temperatures. The symmetry of S oscillations with respect to magnetic flux depends on the topology of the sample.
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U2 - 10.1103/PhysRevLett.81.437
DO - 10.1103/PhysRevLett.81.437
M3 - Article
AN - SCOPUS:0000504286
SN - 0031-9007
VL - 81
SP - 437
EP - 440
JO - Physical review letters
JF - Physical review letters
IS - 2
ER -