Measurement of the electron electric dipole moment using GdIG

Abstract

A new method for the detection of the electron edm using a solid is described. The method involves the measurement of a voltage induced across the solid by the alignment of the samples magnetic dipoles in an applied magnetic field, H. A first application of the method to GdIG has resulted in a limit on the electron edm of 5E-24 e-cm, which is a factor of 40 below the limit obtained from the only previous solid-state edm experiment. The result is limited by the imperfect discrimination of an unexpectedly large voltage that is even upon the reversal of the sample magnetization.

10 pages, 5 figures, v2:references corrected, submitted to PRL, v3:added labels to figure 1

References in corpus (1)

• The Supersymmetric Origin of Matter

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