Supercurrent control in a multi-terminal Nb-InGaAs/InP junction with Nb injector electrodes
作者： Th Sch pers , V A Guzenko , O Zimmermann , A van der Hart , H Hardtdegen
DOI: 10.1088/0953-2048/16/6/310
关键词:
摘要: We experimentally studied the effect of an injection current on Josephson in a superconductor/two-dimensional electron gas/superconductor junction. The two-dimensional gas is realized by using InGaAs/InP heterostructure while Nb taken for superconducting electrodes. suppression supercurrent injecting hot carriers from additional electrode explained modification carrier distribution function. differential conductance between injector and junction found to be enhanced if state. This interference quasi-particles which are phase-coherently Andreev reflected dependence this enhancement external magnetic field detail.
harvard.edu
sci-hub.se 参考文章(33)
Andreas Richter, Nb/InAs(2DEG)/Nb hybrid quantum structures AdSSP. ,vol. 40, pp. 321- 332 ,(2000) , 10.1007/BFB0108363
H.X. Tang, Z.D. Wang, Yuheng Zhang, Normal reflection effect on the critical current in a clean-limit superconductor-normal-metal-superconductor junction European Physical Journal B. ,vol. 101, pp. 359- 366 ,(1997) , 10.1007/S002570050220
A. F. Morpurgo, T. M. Klapwijk, B. J. van Wees, Hot electron tunable supercurrent Applied Physics Letters. ,vol. 72, pp. 966- 968 ,(1998) , 10.1063/1.120612
A.F Morpurgo, B.J van Wees, T.M Klapwijk, G Borghs, Energy spectroscopy of Andreev levels between two superconductors Physical Review Letters. ,vol. 251, pp. 4010- 4013 ,(1998) , 10.1016/S0921-4526(98)00163-X
Li-Fu Chang, Philip F. Bagwell, Control of Andreev-level occupation in a Josephson junction by a normal-metal probe Physical Review B. ,vol. 55, pp. 12678- 12690 ,(1997) , 10.1103/PHYSREVB.55.12678
P. Samuelsson, V. S. Shumeiko, G. Wendin, Long-range Josephson effect in mesoscopic T-shaped superconductor–normal-metal–superconductor junctions Physical Review B. ,vol. 56, ,(1997) , 10.1103/PHYSREVB.56.R5763
B. J. van Wees, K.-M. H. Lenssen, C. J. P. M. Harmans, Transmission formalism for supercurrent flow in multiprobe superconductor-semiconductor-superconductor devices Physical Review B. ,vol. 44, pp. 470- 473 ,(1991) , 10.1103/PHYSREVB.44.470
G. E. Blonder, M. Tinkham, T. M. Klapwijk, Transition from metallic to tunneling regimes in superconducting microconstrictions: Excess current, charge imbalance, and supercurrent conversion Physical Review B. ,vol. 25, pp. 4515- 4532 ,(1982) , 10.1103/PHYSREVB.25.4515
C. W. J. Beenakker, J. A. Melsen, P. W. Brouwer, Giant backscattering peak in angle-resolved Andreev reflection Physical Review B. ,vol. 51, pp. 13883- 13886 ,(1995) , 10.1103/PHYSREVB.51.13883
H. A. Blom, A. Kadigrobov, A. M. Zagoskin, R. I. Shekhter, M. Jonson, Dissipative Electron Transport through Andreev Interferometers Physical Review B. ,vol. 57, pp. 9995- 10016 ,(1998) , 10.1103/PHYSREVB.57.9995