2007/01/17 by S. K. Lamoreaux, Steve K. Lamoreaux, Lamoreaux, Steve K.
Engineering · Physics and Astronomy · #Atomic Physics (physics.atom-ph) #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #Magneto-Optical Properties and Applications #Materials Science (cond-mat.mtrl-sci) #Optical Polarization and Ellipsometry #cond-mat.mtrl-sci #hep-ex #physics.atom-ph
paper · pdf · doi:10.48550/arxiv.physics/0701198
this isn't high energy experiment. 15 pages, three figures
openalex publication_date 2007/01/17 · arxiv created 2007/03/16 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The possibility of a solid state electron electric dipole moment (EDM) experiment based on Gadolinium Iron Garnet (GdIG) is investigated. GdIG appears to exhibit superparamagnetism and this effect can be used to enhance the electric-field-induced EDM signal at relatively a high temperatures, as compared to a simple paramagnetic system such as Gadolinium Gallium Garnet. The sensitivity of a GdIG based experiment might be large enough that an improvement by over three orders of magnitude, compared to the existing electron EDM limit, could be obtained at a modest temperature of 4 K, assuming that the superparamagnetic effect is not suppressed at this temperature, and that the spin relaxation time remains sufficiently rapid.