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Microwave electrical resistivity of moderately high Tc superconductor, Y2C3

“…The purpose of this paper is to clarify the electrical properties of Y 2 C 3 by using a microwave cavity perturbation technique. This technique was found to be a very powerful probe to investigate the electrical properties for materials for which a conventional dc resistivity measurement is impossible [3][4][5], because this technique is a contactless technique. Polycrystalline sample of Y 2 C 3 was prepared by using a high pressure equipment.…”

Gauge Mediation in Supergravity and Gravitino Dark Matter

“…It has been studied that dark matter with free-streaming scales of O(0.1 − 1) Mpc may resolve these issues because it can smear out the density fluctuation in small scale [35,36]. (See also [37] for recent proposals of particle physics models which realize large λ FS via non-thermally produced dark matter. )…”