Coherent spin dynamics in a gadolinium-doped CaWO4 crystal

E. I. Baibekov, M. R. Gafurov, D. G. Zverev, I. N. Kurkin, A. A. Rodionov, B. Z. Malkin, and B. Barbara
Phys. Rev. B 95, 064427 – Published 24 February 2017

Abstract

We report the first observation of Rabi oscillations in the spin-7/2 ensemble of trivalent gadolinium ions hosted in CaWO4 single crystal. A number of transitions within the lowest electronic multiplet 8S7/722 of Gd3+ 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 Gd3+ ion can represent an effective three-qubit quantum system.

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  • Received 26 December 2016

DOI:https://doi.org/10.1103/PhysRevB.95.064427

©2017 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied PhysicsQuantum Information, Science & TechnologyAtomic, Molecular & Optical

Authors & Affiliations

E. I. Baibekov1,*, M. R. Gafurov1, D. G. Zverev1, I. N. Kurkin1, A. A. Rodionov1, B. Z. Malkin1, and B. Barbara2

  • 1Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia
  • 2Institut Néel, CNRS, BP166, 38042 Grenoble Cedex 9 and Université Joseph Fourier, France

  • *edbaibek@gmail.com

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Vol. 95, Iss. 6 — 1 February 2017

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