Temperature and Magnetic field dependent relaxation dynamics of Boron-Vacancy centers in Hexagonal Boron Nitride

ORAL

Abstract

The negatively charged boron-vacancy center (VB-) in hexagonal boron nitride (hBN) has garnered substantial interest in recent years. The two-dimensional structure of hBN and its seamless integration with other van der Waals materials offer exciting possibilities for ultrathin, in-situ quantum sensors. To harness the unique properties of (VB-) centers, it is crucial to understand the physical characteristics of these defects. In this presentation, we explore the temperature and magnetic field-dependent spin relaxation times of (VB-) centers and their implications for practical quantum sensing. We further investigate the underlying phonon-related processes that influence the spin-relaxation rates. Additionally, we also discuss the impact of spin-spin interactions in a dense ensemble of spin defects.

*This work was supported by the U.S. Department of Energy (DOE), Office of Science, through the Quantum Science Center (QSC), DE-AC05-00OR22725, Air Force Office of Scientific Research Award FA9550-22-1-0372 and the National Science Foundation Award ECCS-1944635

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Presenters

  • Abhishek Bharatbhai Solanki

    • Purdue University

Authors

  • Abhishek Bharatbhai Solanki

    • Purdue University

  • Hamza Ather

    • Purdue University

  • Aravindh Shankar

    • Purdue University

  • Owen Matthiessen

    • Elmore Family School of Electrical and Computer Engineering, Birck Nanotechnology Center,Purdue University
    • Purdue University

  • Xingyu Gao

    • Purdue University

  • Demid Sychev

    • Purdue University

  • Alexei S Lagoutchev

    • Purdue University

  • Tongcang Li

    • Purdue University

  • Yong P Chen

    • Purdue University; Aarhus University
    • Purdue University

  • Vladimir M Shalaev

    • Purdue University
    • Elmore Family School of Electrical and Computer Engineering,Birck Nanotechnology Center, Purdue University
    • Elmore Family School of Electrical and Computer Engineering, Purdue Quantum Science and Engineering Institute,Birck Nanotechnology Center, Purdue University

  • Benjamin J Lawrie

    • Oak Ridge National Laboratory

  • Pramey Upadhyaya

    • Purdue University