Modeling nonlinearity and hysteresis due to critical - state ux penetration in hard superconductors
نویسندگان
چکیده
|The nonlinear surface impedance of a thin superconducting strip carrying a microwave current was calculated numerically from rst principles based upon ux penetration due to a current-induced critical state. Our results approaches the analytical results in the appropriate limit. The technique is useful for design of passive superconducting microwave circuits. Keywords| Critical state, Hysteresis, Nonlinearity, Microwave Transmission Lines
منابع مشابه
Modeling nonlinearity and hysteresis due to critical-state flux penetration in hard superconductors
The nonlinear surface impedance of a thin superconducting strip carrying a microwave current has been calculated numerically from first principles based upon flux penetration due to a current-induced critical state. The calculations approach analytic results in the appropriate limit. The technique is useful for design of passive superconducting microwave circuits. Keywords— Critical state, Hyst...
متن کاملAnalytical Study of Optical Bi-Stability of a Single-Bus Resonator Based on InGaAs Micro-Ring Array
In this paper, for the first time to our knowledge, we investigate the optical bi-stability in a compact parallel array of micro- ring resonators with 5μm radius, induced by optical nonlinearity. Due to the nature of perfect light confinement, resonance and accumulation process in a ring resonator, optical nonlinear effects, even at small optical power of a few milliwatts in this structure are ...
متن کاملThe critical state stability and oscillations in hard superconductors
The limited thermomagnetic instabilities in the critical state have been investigated in hard superconductors under an incomplete penetration of the magnetic flux into the sample and under different external cooling conditions. A flat plate is considered in an external magnetic field parallel to the plate surface. Conditions have been found under which it is possible to observe the electric fie...
متن کاملModeling and Cancellation of Pivot Nonlinearity in Hard Disk Drives
This paper considers the issue of modeling the pivot nonlinearity in a typical hard disk drive, taking into account viscous friction, Coulomb friction and hysteresis effects. It presents a nonlinear compensator design, based on a proposed model, to make the compensated system behave like a double integrator regardless of the magnitude of the input current. It describes extensive experiments, ca...
متن کاملSandpiles and Superconductors: Dual Variational Formulations for Critical-State Problems
Similar evolutionary variational inequalities appear as convenient formulations for continuous models for sandpile growth, magnetization of type-II superconductors, and evolution of some other dissipative systems characterized by the multiplicity of metastable states, long-range interactions, avalanches, and hysteresis. The origin of this similarity is that these are quasistationary models of e...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 1999