Related Experiment Video
Updated: Jun 25, 2026

Scanning SQUID Study of Vortex Manipulation by Local Contact
Published on: February 1, 2017
Coherent manipulation and decoherence of s=10 single-molecule magnets
Susumu Takahashi1, Johan van Tol, Christopher C Beedle
1Department of Physics and Center for Terahertz Science and Technology, University of California, Santa Barbara, California 93106, USA. susumu@iqcd.ucsb.edu
Abstract:
We report coherent manipulation of S=10 Fe8 single-molecule magnets. The temperature dependence of the spin decoherence time T2 measured by high-frequency pulsed electron paramagnetic resonance indicates that strong spin decoherence is dominated by Fe8 spin bath fluctuations. By polarizing the spin bath in Fe8 single-molecule magnets at magnetic field B=4.6 T and temperature T=1.3 K, spin decoherence is significantly suppressed and extends the spin decoherence time T2 to as long as 712 ns. A second decoherence source is likely due to fluctuations of the nuclear spin bath. This hints that the spin decoherence time can be further extended via isotopic substitution to smaller nuclear magnetic moments.
Related Concept Videos
Double Resonance Techniques: Overview
Spin decoupling is usually achieved by...
Atomic Nuclei: Nuclear Relaxation Processes
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.
Atomic Nuclei: Nuclear Spin State Overview
Paramagnetism
Atomic Nuclei: Magnetic Resonance

