Analysis of Observed Voltage Oscillations in Silver Doped High Temperature Superconductor YBCO

• Authors: A. Altinkok , M. Olutas , H. Yetis , A. Kiliç , K. Kiliç
• Languages of publication: EN

Abstracts

EN

The effect of square wave current was investigated by the voltage-time (V-t curves) measurements at various external magnetic fields and periods (P) in silver doped YBCO. The general sinusoidal behavior of V-t curves was mainly interpreted as a dynamic competition between driving and pinning forces. It is observed that as the period of square wave current is increased, the amplitude of oscillation is also increased. The observed oscillations in the voltage was fitted by an common sinusoidal equation V(t)ımın(ω t+φ). It is also found that there is different phase angle φ values for each cycle. Fast Fourier transform measurements is applied to oscillation period (P_{I}) of the square wave current. The results give us that a physical mechanism is related with charge density waves. Intrinsically, in Ag doped YBCO, the pinned flux line system evokes the general behavior of charge density waves. Due to properties of the converting the square wave current to sinusoidal voltage oscillations, Ag doped YBCO sample can behave as double-integrator for the defined period, amplitude of square wave current and magnetic field values in time.

Keywords

EN

74.25.F-; 74.72.-h

Discipline

• 74.25.F-: Transport properties
• 74.72.-h: Cuprate superconductors

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2018
• Volume: 133
• Issue: 4
• Pages: 1030-1034

Dates

published

2018-04

Contributors

author

A. Altinkok

• Giresun University, Engineering Faculty, Department of Electrical and Electronics, 28200 Giresun, Turkey

author

M. Olutas

• Abant Izzet Baysal University, Department of Physics, Turgut Gulez Research Laboratory 14280 Bolu, Turkey

author

H. Yetis

• Abant Izzet Baysal University, Department of Physics, Turgut Gulez Research Laboratory 14280 Bolu, Turkey

author

A. Kiliç

• Abant Izzet Baysal University, Department of Physics, Turgut Gulez Research Laboratory 14280 Bolu, Turkey

author

K. Kiliç

• Abant Izzet Baysal University, Department of Physics, Turgut Gulez Research Laboratory 14280 Bolu, Turkey

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Identifiers

DOI

10.12693/APhysPolA.131.1030