Searches for violation of fundamental time reversal and space reflection symmetries in solid state experiments

Abstract

The electric dipole moment (EDM) of a particle violates both time reversal (T) and space reflection (P) symmetries. There have been recent suggestions for searches of the electron EDM using solid state experiments [1,2]. These experiments could improve the sensitivity compared to present atomic and molecular experiments by several orders of magnitude. In the present paper we calculate the expected effect. We also suggest that this kind of experiment is sensitive to T,P-violation in nuclear forces and calculate effects caused by the nuclear Schiff moment. The compounds under consideration contain magnetic Gd${}^{3+}$ ions and oxygen O${}^{2-}$ ions. We demonstrate that the main mechanism for the T,P-odd effects is related to the penetration of the Oxygen 2p-electrons to the Gd core. All the effects are related to the deformation of the crystal lattice.

13 pages, 6 figures

References in corpus (1)

• Solid State Systems for Electron Electric Dipole Moment and other Fundamental Measurements

Cited by in corpus (12)

• Violations of fundamental symmetries in atoms and tests of unification theories of elementary particles
• Cosmic Axion Spin Precession Experiment (CASPEr)
• Electric dipole moments of actinide atoms and RaO molecule
• A suggested search for 207Pb nuclear Schiff moment in PbTiO3 ferroelectric
• New Experimental Limit on the Electric Dipole Moment of the Electron in a Paramagnetic Insulator
• The prospects for a new search for the electron electric dipole moment in solid Gadolinium iron garnet ceramics
• Energy levels and lifetimes of Nd IV, Pm IV, Sm IV, and Eu IV
• Magnetic susceptibility and magnetization fluctuation measurements of mixed Gadolinium-Yttrium Iron Garnets
• Enhancement of the electron electric dipole moment in gadolinium garnets
• Energies, transition rates, and electron electric dipole moment enhancement factors for Ce IV and Pr V
• Investigating the nuclear Schiff moment of ${}^{207}$Pb in ferroelectric PbTiO${}_3$
• Manifestations of nuclear anapole moments in solid state NMR