title: Tunable Weyl Points in Periodically Driven Nodal Line Semimetals.
abstract: Weyl semimetals and nodal line semimetals are characterized by linear band touching at zero-dimensional points and one-dimensional lines, respectively. We predict that a circularly polarized light drives nodal line semimetals into Weyl semimetals. The Floquet Weyl points thus obtained are tunable by the incident light, which enables investigations of them in a highly controllable manner. The transition from nodal line semimetals to Weyl semimetals is accompanied by the emergence of a large and tunable anomalous Hall conductivity. Our predictions are experimentally testable by transport measurement in film samples or by pump-probe angle-resolved photoemission spectroscopy.
authors: Institute for Advanced Study, Tsinghua University, Beijing 100084, China.
authors: Zhongbo
authors: Z
authors: Yan
authors: Institute for Advanced Study, Tsinghua University, Beijing 100084, China.|Collaborative Innovation Center of Quantum Matter, Beijing 100871, China.
authors: Zhong
authors: Z
authors: Wang