Sticky Goos-Hanchen effect at normal/superconductor interface
Apstrakt
We study the quantum Goos-Hanchen (GH) effect for wave-packet dynamics at a normal/superconductor (NS) interface. We find that the effect is amplified by a factor (E-F/Delta), with E-F the Fermi energy and Delta the gap. Interestingly, the GH effect appears only as a time delay delta t without any lateral shift, and the corresponding delay length is about (E-F/Delta)lambda(F), with lambda(F) the Fermi wavelength. This makes the NS interface sticky when Delta LT LT E-F, since typically GH effects are of wavelength order. This sticky behavior can be further enhanced by a resonance mode in the NSNS interface. Finally, for a large Delta, the resonance-mode effect makes a transition from the Andreev to the specular reflection as the width of the sandwiched superconductor is reduced. Copyright (C) EPLA, 2013
Izvor:
Europhysics Letters / EPL, 2013, 103, 2Finansiranje / projekti:
- Fotonika mikro i nano strukturnih materijala (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45010)
DOI: 10.1209/0295-5075/103/20004
ISSN: 0295-5075
WoS: 000323934500004
Scopus: 2-s2.0-84883150928
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Lee, Soo-Young AU - Goussev, Arseni AU - Georgiou, Orestis AU - Gligorić, Goran AU - Lazarides, Achilleas PY - 2013 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5658 AB - We study the quantum Goos-Hanchen (GH) effect for wave-packet dynamics at a normal/superconductor (NS) interface. We find that the effect is amplified by a factor (E-F/Delta), with E-F the Fermi energy and Delta the gap. Interestingly, the GH effect appears only as a time delay delta t without any lateral shift, and the corresponding delay length is about (E-F/Delta)lambda(F), with lambda(F) the Fermi wavelength. This makes the NS interface sticky when Delta LT LT E-F, since typically GH effects are of wavelength order. This sticky behavior can be further enhanced by a resonance mode in the NSNS interface. Finally, for a large Delta, the resonance-mode effect makes a transition from the Andreev to the specular reflection as the width of the sandwiched superconductor is reduced. Copyright (C) EPLA, 2013 T2 - Europhysics Letters / EPL T1 - Sticky Goos-Hanchen effect at normal/superconductor interface VL - 103 IS - 2 DO - 10.1209/0295-5075/103/20004 ER -
@article{ author = "Lee, Soo-Young and Goussev, Arseni and Georgiou, Orestis and Gligorić, Goran and Lazarides, Achilleas", year = "2013", abstract = "We study the quantum Goos-Hanchen (GH) effect for wave-packet dynamics at a normal/superconductor (NS) interface. We find that the effect is amplified by a factor (E-F/Delta), with E-F the Fermi energy and Delta the gap. Interestingly, the GH effect appears only as a time delay delta t without any lateral shift, and the corresponding delay length is about (E-F/Delta)lambda(F), with lambda(F) the Fermi wavelength. This makes the NS interface sticky when Delta LT LT E-F, since typically GH effects are of wavelength order. This sticky behavior can be further enhanced by a resonance mode in the NSNS interface. Finally, for a large Delta, the resonance-mode effect makes a transition from the Andreev to the specular reflection as the width of the sandwiched superconductor is reduced. Copyright (C) EPLA, 2013", journal = "Europhysics Letters / EPL", title = "Sticky Goos-Hanchen effect at normal/superconductor interface", volume = "103", number = "2", doi = "10.1209/0295-5075/103/20004" }
Lee, S., Goussev, A., Georgiou, O., Gligorić, G.,& Lazarides, A.. (2013). Sticky Goos-Hanchen effect at normal/superconductor interface. in Europhysics Letters / EPL, 103(2). https://doi.org/10.1209/0295-5075/103/20004
Lee S, Goussev A, Georgiou O, Gligorić G, Lazarides A. Sticky Goos-Hanchen effect at normal/superconductor interface. in Europhysics Letters / EPL. 2013;103(2). doi:10.1209/0295-5075/103/20004 .
Lee, Soo-Young, Goussev, Arseni, Georgiou, Orestis, Gligorić, Goran, Lazarides, Achilleas, "Sticky Goos-Hanchen effect at normal/superconductor interface" in Europhysics Letters / EPL, 103, no. 2 (2013), https://doi.org/10.1209/0295-5075/103/20004 . .