Coherent spin dynamics in gadolinium-doped CaWO4 crystal

Abstract

We report the first observation of Rabi oscillations in the spin-7/2 ensemble of trivalent gadolinium ions hosted in CaWO${}_4$ single crystal. A number of transitions within the lowest electronic multiplet ${}^8{S}_{7/2}$ of Gd${}^{3+}$ ion are studied using a combination of continuous-wave and pulsed electron paramagnetic resonance spectroscopy. The corresponding Rabi damping curves and the spin coherence times are detected at varying strengths of the microwave field. These data are well reproduced by a theoretical model which accounts for the intrinsic inhomogeneity of the microwave field within the microwave resonator and the magnetic dipole interactions in the diluted spin ensemble. The results indicate that the studied 8-level ground manifold of Gd${}^{3+}$ ion can represent an effective three qubit quantum system.

References in corpus (5)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Direct Observation of Quantum Coherence in Single-Molecule Magnets
• Multiphoton coherent manipulation in large-spin qubits
• Arbitrary precision composite pulses for NMR quantum computing
• Coherent manipulation of dipolar coupled spins in an anisotropic environment

Cited by in corpus (1)

• Sensitive spin detection using an on-chip SQUID-waveguide resonator