Han, Seungyun Lee, Hyun-Woo Kim, Kyoung-Whan 2024-01-19T12:03:58Z 2024-01-19T12:03:58Z 2022-06-17 2022-04 0031-9007 https://pubs.kist.re.kr/handle/201004/115281 Orbital dynamics in time-reversal-symmetric centrosymmetric systems is examined theoretically. Contrary to common belief, we demonstrate that many aspects of orbital dynamics are qualitatively different from spin dynamics because the algebraic properties of the orbital and spin angular momentum operators are different. This difference generates interesting orbital responses, which do not have spin counterparts. For instance, the orbital angular momentum expectation values may oscillate even without breaking neither the time-reversal nor the inversion symmetry. Our quantum Boltzmann approach reproduces the previous result on the orbital Hall effect and reveals additional orbital dynamics phenomena, whose detection schemes are discussed briefly. Our work will be useful for the experimental differentiation of the orbital dynamics from the spin dynamics. English American Physical Society Orbital Dynamics in Centrosymmetric Systems Article 10.1103/PhysRevLett.128.176601 1 Physical Review Letters, v.128, no.17 Physical Review Letters 128 17 N scie scopus 000804592900002 Physics, Multidisciplinary Physics Article SPIN PRECESSION