Measurement and Comparison of Dielectric Constants for Variations in the Superconductor YBa2Cu3O6+x

Location

CSU

Student's Major

Physics and Astronomy

Student's College

Science, Engineering and Technology

Mentor's Name

Youwen Xu

Mentor's Department

Physics and Astronomy

Mentor's College

Science, Engineering and Technology

Description

A belter understanding of the electric properties of YBa2Cu3O6+x, in particular its polarization, can be gained by examining its dielectric constant (K) and the K of similar compounds. Initially a sample was made of YBa2CU3O6+x. Subsequent samples consisted of changing the Y to Gd, Ho, and Nd. Samples of Nd1.5Ba1.5Cu3 and YBa2Cu27Fe0.3O6+x were also prepared and underwent a reducing heat treatment such that 0 < x < 0.1. Dielectric constants were measured using a parallel plate capacitor followed by an X-ray diffraction to determine the lattice constants and also check for impurities.

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Measurement and Comparison of Dielectric Constants for Variations in the Superconductor YBa2Cu3O6+x

CSU

A belter understanding of the electric properties of YBa2Cu3O6+x, in particular its polarization, can be gained by examining its dielectric constant (K) and the K of similar compounds. Initially a sample was made of YBa2CU3O6+x. Subsequent samples consisted of changing the Y to Gd, Ho, and Nd. Samples of Nd1.5Ba1.5Cu3 and YBa2Cu27Fe0.3O6+x were also prepared and underwent a reducing heat treatment such that 0 < x < 0.1. Dielectric constants were measured using a parallel plate capacitor followed by an X-ray diffraction to determine the lattice constants and also check for impurities.