A limit on the electron electric dipole moment using paramagnetic ferroelectric Eu${}_{0.5}$Ba${}_{0.5}$TiO${}_3$

Abstract

We report on the results of a search for the electron electric dipole moment $d_e$ using paramagnetic ferroelectric Eu${}_{0.5}$Ba${}_{0.5}$TiO${}_3$. The electric polarization creates an effective electric field that makes it energetically favorable for the spins of the seven unpaired $4f$ electrons of the Eu${}^{2+}$ to orient along the polarization, provided that $d_e\ne 0$. This interaction gives rise to sample magnetization, correlated with its electric polarization, and is therefore equivalent to a linear magnetoelectric effect. A SQUID magnetometer is used to search for the resulting magnetization. We obtain $d_e = (-1.07\pm3.06_\text{stat}\pm 1.74_\text{sys})\times10^{-25}\ecm$, implying an upper limit of $|d_e|<6.05\times10^{-25}\ecm$ (90% confidence).

arXiv comment5 pages, 4 figures

References in corpus (8)

• Improved limit on the permanent electric dipole moment of 199Hg
• Baryon Asymmetry of the Universe in the Standard Model
• First-principles design and subsequent synthesis of a material to search for the permanent electric dipole moment of the electron
• Measurement of the electron electric dipole moment using GdIG
• On the sensitivity of condensed-matter P- and T-violation experiments
• The prospects for an electron electric dipole moment search with ferroelectric (Eu,Ba)TiO${}_3$ ceramics
• The prospects for a new search for the electron electric dipole moment in solid Gadolinium iron garnet ceramics
• Enhancement of the electron electric dipole moment in gadolinium garnets

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