Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device
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Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device. / Ménard, G. C.; Anselmetti, G. L.R.; Martinez, E. A.; Puglia, D.; Malinowski, F. K.; Lee, J. S.; Choi, S.; Pendharkar, M.; Palmstrøm, C. J.; Flensberg, K.; Marcus, C. M.; Casparis, L.; Higginbotham, A. P.
In: Physical Review Letters, Vol. 124, No. 3, 036802, 22.01.2020.Research output: Contribution to journal › Journal article › Research › peer-review
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TY - JOUR
T1 - Conductance-Matrix Symmetries of a Three-Terminal Hybrid Device
AU - Ménard, G. C.
AU - Anselmetti, G. L.R.
AU - Martinez, E. A.
AU - Puglia, D.
AU - Malinowski, F. K.
AU - Lee, J. S.
AU - Choi, S.
AU - Pendharkar, M.
AU - Palmstrøm, C. J.
AU - Flensberg, K.
AU - Marcus, C. M.
AU - Casparis, L.
AU - Higginbotham, A. P.
PY - 2020/1/22
Y1 - 2020/1/22
N2 - We present conductance-matrix measurements of a three-terminal superconductor-semiconductor hybrid device consisting of two normal leads and one superconducting lead. Using a symmetry decomposition of the conductance, we find that antisymmetric components of pairs of local and nonlocal conductances qualitatively match at energies below the superconducting gap, and we compare this finding with symmetry relations based on a noninteracting scattering matrix approach. Further, the local charge character of Andreev bound states is extracted from the symmetry-decomposed conductance data and is found to be similar at both ends of the device and tunable with gate voltage. Finally, we measure the conductance matrix as a function of magnetic field and identify correlated splittings in low-energy features, demonstrating how conductance-matrix measurements can complement traditional single-probe measurements in the search for Majorana zero modes.
AB - We present conductance-matrix measurements of a three-terminal superconductor-semiconductor hybrid device consisting of two normal leads and one superconducting lead. Using a symmetry decomposition of the conductance, we find that antisymmetric components of pairs of local and nonlocal conductances qualitatively match at energies below the superconducting gap, and we compare this finding with symmetry relations based on a noninteracting scattering matrix approach. Further, the local charge character of Andreev bound states is extracted from the symmetry-decomposed conductance data and is found to be similar at both ends of the device and tunable with gate voltage. Finally, we measure the conductance matrix as a function of magnetic field and identify correlated splittings in low-energy features, demonstrating how conductance-matrix measurements can complement traditional single-probe measurements in the search for Majorana zero modes.
UR - http://www.scopus.com/inward/record.url?scp=85079082558&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.124.036802
DO - 10.1103/PhysRevLett.124.036802
M3 - Journal article
C2 - 32031865
AN - SCOPUS:85079082558
VL - 124
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 3
M1 - 036802
ER -
ID: 242667958