Abstract
We study macroscopic quantum tunneling and coherence in small ferromagnetic particles in the presence of magnetic fields with a general direction. Different structures of the tunnel barriers can be generated by the magnitude and direction of the magnetic field. We calculate the tunneling rate via instanton method and give the approximate analytic forms of the rate for the hexagonal and cubic symmetries. We also present the numerical results of the WKB exponent for cubic symmetry in a wide range of angles, and discuss their different features.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
