1999/10/25 by Nir S. Gov, N. Gov, Gov, N. +2
Earth and Planetary Sciences · Physics and Astronomy · #Atomic and Subatomic Physics Research #Condensed Matter (cond-mat) #FOS: Physical sciences #High-pressure geophysics and materials #Quantum, superfluid, helium dynamics #cond-mat
paper · pdf · doi:10.48550/arxiv.cond-mat/9910392
4 pages, 3 figures. Submitted to Phys. Rev. lett
arxiv created 1999/10/25 · openalex publication_date 1999/10/25 · arxiv updated 2016/08/31 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
We propose a new way to treat nuclear magnetism of solid 3He. We argue that the magnetic interaction arises indirectly as a consequence of correlated zero-point motion of the ions. This motion lowers the energy of the ground state, and results in a coherent state of oscillating electric dipoles. Distortion of the electronic wavefunctions leads to hyperfine magnetic interactions with the nuclear spin. Our model describes both the phonon spectra and the nuclear magnetic ordering of bcc 3He using a single parameter, the dipolar interaction energy E0. The model yields correctly both the u2d2 symmetry of the ordered phase and the volume dependence of the magnetic interaction.