WebThe optical Stark e˙ect has been applied to manipulate the spin/pseudospin in quantum systems, such as atomic quantum gases19, quantum dots20,21, and III V quantum … WebNov 16, 2024 · Optical manipulation of layer-valley coherence via strong exciton-photon coupling in microcavities. Coherent control and manipulation of quantum degrees of …
Phys. Rev. B 101, 125401 (2024) - Manipulation of valley …
WebMing-Hui Chiu,4Lain-Jong Li,3,4Feng Wang1,2,5† The valley pseudospin is a degree of freedom that emerges in atomically thin two-dimensional transition metal dichalcogenides (MX 2).The capability to manipulate it, in analogy to the control of spin in spintronics, can open up exciting opportunities. WebOct 14, 2024 · Thus, the spin-valley locking and the interplay of two inequivalent valleys give rise to valley-dependent optical selection rules [17]. Manipulation of valley pseudospin thus becomes a central theme in the eld of valleytronics. Several methods have been proposed to achieve transient valley polarization such as optical excitations [18{20], by northbrook fireworks
Ultrafast generation of pseudo-magnetic field for valley …
WebMay 14, 2024 · The valley manipulation is realized via the optical control of the CrI 3 magnetization, which tunes the magnetic exchange field over a range of 20 T. Our results … WebThe valley pseudospin in transition metal dichalcogenide (TMDC) monolayers is a promising degree of freedom for such control, with the optical Stark effect allowing for valley-selective manipulation of energy levels in WS2 and WSe2 using ultrafast optical pulses. WebMar 2, 2024 · Removing valley degeneracy is a necessary condition for manipulating valley degrees of freedom and storing information in future spintronics. Magnetic proximity effect has been demonstrated to be an effective way to introduce exchange interactions, especially in the case of two-dimensional (2D) van der Waals (vdW) heterostructures. We have … northbrook fire prevention bureau