TY - JOUR
T1 - Collective charge density wave motion in inhomogeneous mesoscopic systems
AU - Visscher, M. I.
AU - Rejaei, B.
AU - Bauer, G. E.W.
N1 - Funding Information:
This work is part of the research program of the “Stichting voor Fundamenteel Onderzoek der Materie (FOM)”, which is financially supported by the “Nederlandse Organisatie voor Wetenschappelijk Onderzoek (NWO)”. It is a pleasure to acknowledge Yuli Nazarov for useful discussions.
PY - 1998/6/17
Y1 - 1998/6/17
N2 - We investigate theoretically the collective charge density wave (CDW) motion in two inhomogeneous mesoscopic systems. Using the Keldysh formalism, we first show that the sliding motion in a superconductor/charge density wave/superconductor (S/C/S) junction acts as a non-linear shunting resistance parallel to the Josephson channel. Internal harmonic and sub-harmonic mode-locking of the CDW and Josephson frequencies causes sharp oscillations in the current-voltage characteristics and plateaus in the CDW conductance. Secondly, we show that the sliding motion in an ensemble of small Aharonov-Bohm rings is modulated by a half-flux quantum periodicity Φ0/2 = h/2e, consistent with recent experiments.
AB - We investigate theoretically the collective charge density wave (CDW) motion in two inhomogeneous mesoscopic systems. Using the Keldysh formalism, we first show that the sliding motion in a superconductor/charge density wave/superconductor (S/C/S) junction acts as a non-linear shunting resistance parallel to the Josephson channel. Internal harmonic and sub-harmonic mode-locking of the CDW and Josephson frequencies causes sharp oscillations in the current-voltage characteristics and plateaus in the CDW conductance. Secondly, we show that the sliding motion in an ensemble of small Aharonov-Bohm rings is modulated by a half-flux quantum periodicity Φ0/2 = h/2e, consistent with recent experiments.
KW - Aharonov-Bohm effect
KW - Charge density waves
KW - Josephson effect
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U2 - 10.1016/S0921-4526(98)00171-9
DO - 10.1016/S0921-4526(98)00171-9
M3 - Article
AN - SCOPUS:0032093946
SN - 0921-4526
VL - 249-251
SP - 490
EP - 495
JO - Physica B: Condensed Matter
JF - Physica B: Condensed Matter
ER -