Localized rotating-modes in capacitively coupled intrinsic Josephson junctions: Systematic study of branching structure and collective dynamical instability

M. Machida; T. Koyama

doi:10.1103/PhysRevB.70.024523

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Localized rotating-modes in capacitively coupled intrinsic Josephson junctions: Systematic study of branching structure and collective dynamical instability

M. Machida, T. Koyama

DOI 10.1103/PhysRevB.70.024523 · Physical Review B

T1

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Abstract

A variety of the I–V characteristics observed in a stack of intrinsic Josephson junctions is systematically explained in terms of the dynamics of the localized rotating mode in the discrete nonlinear systems. We clarify the effect of the capacitive coupling constant on the I–V characteristics, using the capacitively coupled Josephson junction model. The branch structure in the I–V characteristics changes from an assembly of equidistance branches to a single hysteresis-loop-like structure as the capacitive coupling constant increases. This behavior is in accordance with experiments. We predict that dynamical transitions between collective rotating states take place in the resistive state of a stack of intrinsic Josephson junctions in the strong capacitive coupling regime. These transitions create step-like structure in the I–V characteristics, which is observed in La1−xSrxCuO4−δ.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Bi2Sr2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Tl2Ba2CaCu2O8 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
Tl2Ba2CuO6 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
SmLa1-xSrxCuO4-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown
YBa2CaCu3O7-δ Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown