Prospects for an electron electric-dipole-moment search with ferroelectric (Eu,Ba)TiO{sub 3} ceramics

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.81.022104· OSTI ID:21408179

Sushkov, A O; Eckel, S; Lamoreaux, S K ^[1]

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1. Yale University, Department of Physics, P. O. Box 208120, New Haven, Connecticut 06520-8120 (United States)

We propose to use ferroelectric (Eu,Ba)TiO{sub 3} ceramics just above their magnetic ordering temperature for a sensitive electron electric-dipole-moment search. We have synthesized a number of such ceramics with various europium concentrations and measured their properties relevant for such a search: permeability, magnetization noise, and ferroelectric hysteresis loops. We also identify and estimate the likely systematics: the magnetoelectric effect, hysteresis-loop heating, and ferroelectric relaxation currents. Our measurements and estimates indicate that a search for the electron electric dipole moment with Eu{sub 0.5}Ba{sub 0.5}TiO{sub 3} could lead to an order of magnitude improvement on the current best limit, if the systematic effects can be controlled.

• OSTI ID: 21408179
• Journal Information: Physical Review. A, Vol. 81, Issue 2; Other Information: DOI: 10.1103/PhysRevA.81.022104; (c) 2010 The American Physical Society; ISSN 1050-2947
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
CERAMICS
ELECTRIC DIPOLE MOMENTS
ELECTRICAL PROPERTIES
ELECTRONS
EUROPIUM
FERROELECTRIC MATERIALS
HYSTERESIS
MAGNETIC PROPERTIES
MAGNETIZATION
NOISE
PERMEABILITY
RELAXATION
TITANATES
TITANIUM OXIDES
CHALCOGENIDES
DIELECTRIC MATERIALS
DIPOLE MOMENTS
ELECTRIC MOMENTS
ELEMENTARY PARTICLES
ELEMENTS
FERMIONS
LEPTONS
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RARE EARTHS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS