Abstract
Abstract We have measured the nuclear spin lattice relaxation time in liquid indium from 130°C to 300°C to be: 1/T 1=(1.98 × 0.0082T) × 103 sec-1. The relaxation rate consists of two significant parts: (1/T 1) K from the nuclear magnetic hyperfine interaction, and (1/T 1) Q from the nuclear quadrupole interaction. We calculate (1/T 1) K from the the modified Korringa relation using a correction factor of order unity for electron-electron interactions. The hyperfine term is linear in T and accounts for the second term in 1/T 1. Within experimental error the remaining rate, (1/T 1) Q , is temperature independent, and theoretically varies as the product of the square of the electric field gradient, q, and τc, a typical time between field gradient fluctuations. Making use of the x-ray RDF, we construct a simple model for liquid indium and calculate the ionic and electronic contributions, q I and q E, to the electric field gradient, to be q I=1.4 × 1024/cm3 and q E=8.5 × 1024/cm3. The calculation of q E assume...
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.
