Results 51 to 60 of about 9,264 (254)

Dissipation of Spin Angular Momentum in Magnetic Switching [PDF]

Physical Review Letters, 2005
Applying one ultrashort magnetic field pulse, we observe up to 10 precessional switches of the magnetization direction in single crystalline Fe films of 10 and 15 atomic layers. We find that the rate at which angular momentum is dissipated in uniform large angle spin precession increases with time and film thickness, surpassing the intrinsic ...
Stamm, C., Tudosa, I., Siegmann, H. C., Stöhr, J., Dobin, A. Y., Woltersdorf, Georg, Heinrich, B., Vaterlaus, A.   +7 more
openaire   +3 more sources

Indirect Band Edge and Chain‐Locked Linear Dichroism in the Quasi‐1D Van der Waals Antiferromagnet AgCrP2S6

Advanced Functional Materials, EarlyView.
AgCrP2S6 reveals a momentum‐indirect band edge (≈1.35 eV) and chain‐locked linear dichroism: the first direct transitions emerge at 1.6–1.8 eV for E||a. Resonant Raman and photoemission corroborate this assignment. In ACPS/graphene heterostructures, photocurrent turns on above ≈1.5 eV and follows the same polarization selection rules (anisotropy ≈0.53),
Oleksandr Volochanskyi, Sabrina Juergensen, Václav Valeš, Kumari Surbhi, Martin Mergl, Kseniia Mosina, Zdeněk Sofer, Jan Honolka, Patryk Kusch, Martin Kalbáč   +9 more
wiley   +1 more source

Gravitational orbital Hall effect of vortex light in Lense–Thirring metric

European Physical Journal C: Particles and Fields
Vortex light, characterized by an intrinsic orbital angular momentum aligned with its propagation direction, is described through vortex electromagnetic waves.
Wei-Si Qiu, Dan-Dan Lian, Peng-Ming Zhang   +2 more
doaj   +1 more source

Geometric-phase-based shearing interferometry for broadband vortex state decoding

Scientific Reports, 2022
Given that spin and orbital angular momenta of photons have been widely investigated in optical communication and information processing systems, efficient decoding of optical vortex states using a single element is highly anticipated.
Ziyao Lyu, Changshun Wang
doaj   +1 more source

Spin–Orbital-Angular-Momentum Coupled Bose-Einstein Condensates [PDF]

Physical Review Letters, 2018
We demonstrate coupling between the atomic spin and orbital-angular-momentum (OAM) of the atom's center-of-mass motion in a Bose-Einstein condensate (BEC). The coupling is induced by Raman-dressing lasers with a Laguerre-Gaussian beam, and creates coreless vortices in a $F=1$ $^{87}$Rb spinor BEC.
Chen, H. -R., Lin, K. -Y., Chen, P. -K., Chiu, N. -C., Wang, J. -B., Chen, C. -A., Huang, P. -P., Yip, S. -K., Kawaguchi, Yuki, Lin, Y. -J.   +9 more
openaire   +3 more sources

Self‐Powered Permeable Electronic Dressing for Exudate Management, Electrostimulation and Drug Delivery in Chronic Wound Healing

Advanced Functional Materials, EarlyView.
This study develops a self‐powered permeable electronic dressing (SPED) that synergistically integrates exudate management, electrical stimulation, and on‐demand drug delivery. The dressing effectively absorbs exudate while demonstrating potent antibacterial activity and accelerated tissue regeneration in diabetic mouse models, thereby promoting ...
Jiaheng Liang, Jingjing Fu, Jin Chai, Hongyu Jiang, Fan Chen, Yufei Zhang, Weihao Zhao, Xian Song, Zhihao Zhou, Lingtao Fang, Qiyao Huang, Peng Li, Zijian Zheng   +12 more
wiley   +1 more source

The Hall Effects of Vortex Light in Optical Materials

Advanced Photonics Research
For light, its spin can be independent of the spatial distribution of its wave function, whereas its intrinsic orbital angular momentum does depend on this distribution.
Wei‐Si Qiu, Li‐Li Yang, Dan‐Dan Lian, Peng‐Ming Zhang   +3 more
doaj   +1 more source

Unconventional spin currents in magnetic films

Physical Review Research, 2020
A spin current—a flow of spin angular momentum—can be carried either by spin-polarized free electrons or by magnons, the quanta of a moving collective oscillation of localized electron spins, i.e., a spin wave.
Dmytro A. Bozhko, Halyna Yu. Musiienko-Shmarova, Vasyl S. Tiberkevich, Andrei N. Slavin, Ihor I. Syvorotka, Burkard Hillebrands, Alexander A. Serga   +6 more
doaj   +1 more source

Dynamical and topological properties of the spin angular momenta in general electromagnetic fields

Communications Physics, 2023
Spin angular momenta play important roles in light–matter interactions, leading to the emergence of the spin Hall effect and topological quasiparticles in modern optics.
Peng Shi, Luping Du, Aiping Yang, Xiaojin Yin, Xinrui Lei, Xiaocong Yuan   +5 more
doaj   +1 more source

Intrinsic Spin and Orbital Angular Momentum Hall Effect [PDF]

Physical Review Letters, 2005
References ...
Zhang, S., Yang, Z.
openaire   +3 more sources