2024 Spin-photogalvanic effect

Spin-photogalvanic effect

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August undefined, 2024

WebJan 25, 2007 · We study the spin photogalvanic effect in a two-dimensional electron system with structure-inversion asymmetry by means of solution of the semiconductor optical … WebJul 18, 2024 · The photogalvanic effect (PGE) occurring in noncentrosymmetric materials enables the generation of a dc photocurrent at zero bias with a high polarization sensitivity, which makes it very attractive in photodetection.

Voltage-tunable circular photogalvanic effect in silicon nanowires

WebApr 16, 2024 · The short timescale spin dynamics in antiferromagnets is an attractive feature from the standpoint of ultrafast spintronics. Yet generating highly polarized spin currents at room temperature remains a fundamental challenge for antiferromagnets. We propose a spin circular photogalvanic effect (spin-CPGE), in which circularly polarized … WebNov 7, 2024 · Photogalvanic effect induced fully spin polarized current and pure spin current in zigzag SiC nanoribbons Using nonequilibrium Green's function combined with density … the australian one party

Photogalvanic effect induced fully spin polarized current …

WebJan 1, 2024 · Photogalvanic effect in spin-polarized zigzag antimonene nanoribbon with Cr and Co edge-modification. Author links open overlay panel Lei Yang a, Mingyan Chen b, Changpeng Chen a c, Qingwen Lan a. Show more. Add to Mendeley. ... The photogalvanic effect (PGE) enables materials to generate photocurrent under zero bias and has a high … WebSep 10, 2024 · Temperature dependence measurements show that pronounced variations in the spin photocurrent emerge at temperatures that coincide with the onset of anomalies in their transport and optical properties. The decreasing trend in the temperature dependence starting below ∼150K is attributed to the temperature-induced Lifshitz transition. WebThe pure spin current and fully spin-polarized current induced by the photogalvanic effect and spin-Seebeck effect in halogen-decorated phosphorene† Zibin Zheng,a Lin Zhu, *a Zenglin Cao,a Xiaohui Guo,a Yin Wangb and Kailun Yaoa Author affiliations the greater cumberland committee

PT-symmetry enabled spin circular photogalvanic effect in ...

WebJan 25, 2007 · We study the spin photogalvanic effect in a two-dimensional electron system with structure-inversion asymmetry by means of solution of the semiconductor optical Bloch equations. It is shown that linearly polarized light may inject a pure spin current into spin-splitting conduction bands due to Rashba spin-orbit coupling, while circularly polarized … WebJan 17, 2024 · In the work, we demonstrate the spin-photogalvanic effect for (R-MBA)2PbI4 and (S-MBA)2PbI4 polycrystalline films based lateral devices (100 µm channel length). The light helicity dependence of ... the australian online subscriptionWebMay 14, 2024 · The photogalvanic effect (PGE) is induced under vertical illumination of elliptically polarized light, giving rise to a robust photocurrent in a broad visible range at … the greater community

"WebHere, we investigate the tunable circular photoelectric responses in 2D Te field-effect transistors with different chirality, including the longitudinal circular photogalvanic effect induced by the radial spin texture (electron-spin polarization parallel to the electron momentum direction) and the circular photovoltaic effect induced by the ... " - Spin-photogalvanic effect

Spin-photogalvanic effect

Voltage-tunable circular photogalvanic effect in silicon nanowires

WebDec 16, 2024 · We investigate the photogalvanic effect in nitrogen-doped monolayer molybdenum disulfide (MoS 2) under the perpendicular irradiation, using first-principles calculations combined with non-equilibrium Green function formalism.We provide a detailed analysis on the behavior of photoresponse based on the band structure and in particular … WebDec 4, 2011 · Although a photo-induced inverse spin Hall effect has been observed in GaAs and related materials, the exceptionally short spin lifetime of bulk optically spin-oriented carriers will make...

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WebApr 16, 2024 · We propose a spin circular photogalvanic effect (spin-CPGE), in which circularly polarized light can produce a spin current without net charge current at room … Webphotogalvanic effect is hence expected if coherent spin transport takes place on a length scale large enough for spin-polarized cur-rents to be driven through a device. We report measurements of the resulting spin-polarized photocurrents in devices made from single crystals of (CH 3NH 3)PbI 3, the most important LHP material. Results and Discussion

WebIn the circular photogalvanic effect (CPGE), the polarity and magnitude of photocurrents can be controlled by the chirality of elliptically polarized optical excitation ( Pcirc) in a certain class of materials known as gyrotropic media. Web2 Spin-photogalvanic effect in chiral lead halide perovskites. 来源：NANOSCALE( P 2040-3364 E 2040-3372 ) 发表时间: 2024/01 ... 3 Spin dependent polaron pair dissociation at charge transfer states enables low driving force for non.. 来源：APPL PHYS LETT( P 0003-6951 E 1077-3118 ) 发表时间: 2024/06.

WebQuasi-one-dimensional structures, possessing marked anisotropy gives more choice for the manipulation of the spin DOF since the concrete SOC form varies along with crystallographic directions. The anisotropy of the Dresselhaus SOC in cadmium selenide (CdSe) nanobelt and nanowire was studied by circular photogalvanic effect. WebWe investigate the magnetic, thermoelectric transport, and photogalvanic effect (PGE) properties of two nano-devices based on sawtooth edged graphene nanoribbons (SGNRs). It is found that a robust spin-semiconducting property exists in SGNRs. When SGNRs are arranged in a configuration, a large spin Seebeck

WebNov 7, 2024 · Using nonequilibrium Green's function combined with density functional theory, we investigate the spin-related current generated by the photogalvanic effect (PGE) in monolayer zigzag SiC nanoribbons (ZSiCNRs) by first-principles calculations. Due to its unique atomic structure and band structure pro …

WebIn this paper we review both theoretical and experimental studies on spin-related photogalvanic effects. A short phenomenological introduction is followed by the … the greater columbus fairWebAug 18, 2024 · Abstract. We propose a new idea to generate pure spin current with photogalvanic effect (PGE) by designing devices with spatial inversion symmetry based … the australian open 2017WebJun 18, 2024 · This revealed spin photogalvanic effect can generate the long-time pursued intrinsic pure spin current (PSC) in non-centrosymmetric nonmagnetic insulators. Different from the spin and valley Hall ... the greater cumberland raceway facebookWebJan 23, 2024 · When excited carriers also have net in-plane momentum, spin-polarized photocurrents can be generated at ambient temperature without magnetic fields or materials. The behavior of these spin-polarized photocurrents in monolayer TMDC remains largely unexplored. the greater curve tofflemire bandWebApr 6, 2024 · Here we show that the spin photogalvanic effect (SPGE), which has been predicted in three-dimensional (3D) antiferromagnets, can intrinsically emerge in 2D antiferromagnets for promising ... We would like to show you a description here but the site won’t allow us. the australian online subscription costWebHere, we study the transport properties of the spin-polarized photocurrent in the flexible Ni–phosphorene–Ni photodetector, which is driven by the photogalvanic effect (PGE) under mechanical tension stress and bending. the australian payroll specialists tapsWebWe propose nano-constriction engineering of armchair graphene nanoribbons (AGNRs) to construct photoelectric nanodevices aiming to generate pure spin currents through the photogalvanic effect (PGE) using first-principles calculations. Two devices with different symmetries were designed, one by introducing on 2024 PCCP HOT Articles the greater common good arundhati roy