Characterization of Spin-Lattice Relaxation Times of Impurity Centers in Diamond with Superconducting Circuits

ORAL

Abstract

We present measurements of the T$_1$ relaxation times of impurity centers in diamond below 4 K obtained with both a nanobridge SQUID magnetometer and a superconducting resonator with an independent broadband excitation line. We show temperature, field and power dependence of the P1 center relaxation times, and discuss how these dependences fit within current models of spin-lattice relaxation and spin diffusion. These measurements are a step toward identifying the dominant spin-lattice relaxation processes in diamond at cryogenic temperatures, and optimizing such solid-state devices for quantum information processing.

*This research was supported by the National Science Foundation E3S center and the Air Force Office of Scientific Research.

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Authors

  • N. Antler

    • QNL, UC Berkeley

  • Shay Hacohen-Gourgy

    • QNL, UC Berkeley
    • QNL, University of California, Berkeley

  • D. Toyli

    • QNL, University of California, Berkeley
    • QNL, UC Berkeley

  • E. Levenson-Falk

    • QNL, UC Berkeley

  • A. Jarmola

    • Dept. of Physics, UC Berkeley

  • P. Kehayias

    • Dept. of Physics, UC Berkeley

  • D. Budker

    • Dept. of Physics, UC Berkeley

  • Irfan Siddiqi

    • QNL, University of California, Berkeley
    • University of California, Berkeley
    • QNL, UC Berkeley
    • Quantum Nanoelectronics Laboratory, Department of Physics, University of California, Berkeley