Ultrafast pseudomagnetic fields from electron-nuclear quantum geometry
arxiv(2024)
摘要
Recent experiments demonstrate precise control over coherently excited phonon
modes using high-intensity terahertz lasers, opening new pathways towards
dynamical, ultrafast design of magnetism in functional materials. In this work,
we put forward a coupling mechanism based on electron-nuclear quantum geometry.
This effect is rooted in the phase accumulation of the electronic wavefunction
under a circular evolution of nuclear coordinates. An excitation pulse then
induces a transient level splitting between electronic orbitals that carry
angular momentum. When converted to effective magnetic fields, values on the
order of tens of Teslas are easily reached.
更多查看译文
AI 理解论文
溯源树
样例
生成溯源树,研究论文发展脉络
Chat Paper
正在生成论文摘要