An electrodynamic balance has been constructed in which the perturbative forces from applied magnetic fields are used to probe the superconducting properties of single levitated charged grains of high Tc superconductors with diameters ≲10 μm. The low‐temperature magnetization of selected Ba2YCu3O7 grains has been observed to exhibit a flux exclusion near 80% of the theoretical maximum. Hysteresis, flux creep, and the lower critical field are identified.
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Research Article| November 28 1988
Magnetization measurements of single levitated grains of Ba2YCu3O7
G. S. Grader;
A. F. Hebard;
G. S. Grader, A. F. Hebard, R. H. Eick; Magnetization measurements of single levitated grains of Ba2YCu3O7. Appl. Phys. Lett. 28 November 1988; 53 (22): 2238–2240. https://doi.org/10.1063/1.100513
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