Ontology highlight
ABSTRACT:
SUBMITTER: Liu Y
PROVIDER: S-EPMC6750063 | biostudies-literature | 2019
REPOSITORIES: biostudies-literature
Liu Yizhou Y Xu Yong Y Duan Wenhui W
Research (Washington, D.C.) 20190731
Efficient control of phonons is crucial to energy-information technology, but limited by the lacking of tunable degrees of freedom like charge or spin. Here we suggest to utilize crystalline symmetry-protected pseudospins as new quantum degrees of freedom to manipulate phonons. Remarkably, we reveal a duality between phonon pseudospins and electron spins by presenting Kramers-like degeneracy and pseudospin counterparts of spin-orbit coupling, which lays the foundation for "pseudospin phononics". ...[more]