Oscillations of the Electric-Dipole Echo in Glasses in a Magnetic Field

Abstract

Using a simple diagram technique we derive the electric-dipole echo amplitude from two-level systems with a quadrupole nuclear moment in glasses in an external magnetic field. We show, that due to the quadrupole moment interaction of a tunneling particle with a gradient of an internal electric field, the echo amplitude experiences oscillations in rather weak magnetic fields. With an increase of the magnetic field, when the Zeeman energy becomes larger than the quadrupole energy splitting, the average echo amplitude increases and saturates (for high magnetic fields) at some level which is above the average level of echo oscillations for small magnetic fields.

arXiv comment11 pages, 4 figures

References in corpus (2)

• Dephasing of Atomic Tunneling by Nuclear Quadrupoles
• Evidence for Magnetic Field Induced Changes of the Phase of Tunneling States: Spontaneous Echoes in (KBr)${}_{1-x}$(KCN)${}_x$ in Magnetic Fields

Cited by in corpus (4)

• The effect of Aharanov-Bohm phase on the magnetic-field dependence of two-pulse echos in glasses at low temperatures
• Effect of a Magnetic Field on the Dipole Echo in Glasses with Nuclear Quadrupole Moments
• Oscillations of Echo Amplitude in Glasses in a Magnetic Field Induced by Nuclear Dipole-Dipole Interaction
• A theory of the three-pulse electric-dipole echo in glasses in a magnetic field