Measurement of mesoscopic High-$T_c$ superconductors using Si mechanical micro-oscillators

Details Measurement of mesoscopic High-$T_c$ superconductors using Si mechanical micro-oscillators Measurement of mesoscopic High-$T_c$ superconductors using Si mechanical micro-oscillators

2007-02-26

arxiv.org/abs/cond-mat/0702597v1

Physics

Condensed Matter

Superconductivity

4 pages, 6 figures

Scientific paper

10.1016/j.physb.2007.04.037

In a superconducting mesoscopic sample, with dimensions comparable to the London penetration depth, some properties are qualitatively different to those found in the bulk material. These properties include magnetization, vortex dynamics and ordering of the vortex lattice. In order to detect the small signals produced by this kind of samples, new instruments designed for the microscale are needed. In this work we use micromechanical oscillators to study the magnetic properties of a Bi$_2$Sr$_2$CaCu$_2$O$_{8 + \delta}$ disk with a diameter of 13.5 microns and a thickness of 2.5 microns. The discussion of our results is based on the existence and contribution of inter and intra layer currents.

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