Related Experiment Video
Updated: Jan 17, 2026
![Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate](/_next/image?url=https%3A%2F%2Fcloudfront.jove.com%2FCDNSource%2Fteasers%2F59399.jpg&w=3840&q=50)
Measuring the Spin-Lattice Relaxation Magnetic Field Dependence of Hyperpolarized [1-13C]pyruvate
Published on: September 13, 2019
Magnetic-field- and temperature-dependent spin relaxation of divacancy spins in SiC
Abstract:
In recent years, spin defects in SiC have become important systems for quantum information. In this work, the magnetic-field- and temperature-dependent spin relaxation of divacancy spins in 4H-SiC is experimentally studied. We first measure the spin relaxation time T1 as the magnetic field varies from 43 G to 640 G and find that T1 significantly decreases at magnetic field values near 482 G and 241 G due to the cross-relaxation with the electric and nuclear spin baths. We then investigate the temperature-dependent relaxation T1 and coherence time T2. The results show that both T1 and T2 decrease as the temperature increases from 295 K to 458 K. The experiments provide the basis for understanding the spin relaxation property of divacancy spins, which is useful for the spin relaxation-related quantum technologies.
Related Concept Videos
Atomic Nuclei: Nuclear Relaxation Processes
Atomic Nuclei: Nuclear Spin State Overview
Atomic Nuclei: Types of Nuclear Relaxation
In spin–lattice or longitudinal relaxation, the excited spins exchange energy with the surrounding lattice as they return to the lower energy level. Among several mechanisms that contribute to spin–lattice relaxation, magnetic dipolar interactions are significant. Here, the excited nucleus transfers...
Atomic Nuclei: Nuclear Spin State Population Distribution
Valence Bond Theory
Diamagnetism
Diamagnetism was discovered by Anton Brugmans in 1778 when he observed that bismuth gets repelled by magnetic fields, thus theorizing that diamagnets get repelled by magnets....

