Results 71 to 80 of about 27,190 (260)

Anomalous diffusion in velocity space [PDF]

Physics Letters A, 2009
The problem of anomalous diffusion in the momentum space is considered on the basis of the appropriate probability transition function (PTF). New general equation for description of the diffusion of heavy particles in the gas of the light particles is formulated on basis of the new approach similar to one in coordinate space (S. Trigger et al.).
openaire   +2 more sources

Thermally Robust Room‐Temperature Interlayer Excitons in a Hybrid van der Waals Heterostructure

Advanced Functional Materials, EarlyView.
We report an optically active interlayer exciton in a hybrid van der Waals (PEA)2PbBr4/MoS2 heterostructure that remains thermally stable up to 400 K. The emission exhibits polarization anisotropy consistent with an out‐of‐plane optical transition‐dipole component and shows lifetime extension indicative of electron–hole separation.
Seoyeon Ko, Hyeon Jun Jeong, Soungmin Bae, Jieun Jo, Chan Kwon, Hayoung Ko, Dong Hyeon Kim, Hyunjung Shin, Mun Seok Jeong, Seokhyun Yoon   +9 more
wiley   +1 more source

A Physics-Informed Surrogate Model for the Bi-Flux Bevilacqua–Galeão Anomalous Diffusion Equation

Eng
Accurate modeling of bi-flux anomalous diffusion presents significant computational challenges in engineering. This paper investigates the effectiveness of physics-informed neural networks as surrogate models for the bi-flux anomalous diffusion equation.
Douglas Ferraz Corrêa, Cláudio Motta Toledo, David A. Pelta, Antônio Silva Neto   +3 more
doaj   +1 more source

Gaussian Processes in Complex Media: New Vistas on Anomalous Diffusion

Frontiers in Physics, 2019
Normal or Brownian diffusion is historically identified by the linear growth in time of the variance and by a Gaussian shape of the displacement distribution.
Francesco Di Tullio, Francesco Di Tullio, Paolo Paradisi, Paolo Paradisi, Renato Spigler, Gianni Pagnini, Gianni Pagnini   +6 more
doaj   +1 more source

Anomalous diffusion-controlled evaporation [PDF]

Journal of the Chemical Society, Faraday Transactions 2, 1973
Diffusion-controlled, steady-state evaporation through certain membranes has been reported to proceed anomalously faster into a humid than into a dry atmosphere. The diffusion coefficient of such a membrane depends explicitly on both concentration and location within the membrane.
openaire   +2 more sources

Ferromagnetism of Molecular Beam Epitaxy‐grown Ultra‐thin Cr2Ge2Te6 Films Down to the Monolayer Limit on Si Substrates

Advanced Materials, EarlyView.
Uniform monolayer Cr2Ge2Te6 films are achieved on Si substrates by molecular beam epitaxy. Intrinsic ferromagnetism with perpendicular magnetic anisotropy is established in the films by anomalous Hall effect and superconducting quantum interference device measurements, albeit with strong magnetic fluctuations characteristic of its 2D nature.
Pengfei Ji, Ruixuan Liu, Tianchen Zhu, Yang Chen, Yitian Tong, Jinxuan Liang, Yunhe Bai, Yunyi Zang, Zuhan Geng, Fangting Chen, Xiyu Hong, Jiatong Zhang, Luyi Yang, Qi‐Kun Xue, Ke He, Xiao Feng   +15 more
wiley   +1 more source

Accelerating and retarding anomalous diffusion [PDF]

Journal of Physics A: Mathematical and Theoretical, 2012
18 page, 1 ...
Eab, Chai Hok, Lim, S C
openaire   +3 more sources

Giant Orbital Rashba–Edelstein Effect in Crystalline Cu2O/Cu Heterostructures

Advanced Materials, EarlyView.
An enhanced orbital Rashba–Edelstein effect is demonstrated in a crystalline Cu2O/Cu heterostructure, compared to naturally oxidized CuOx structures, highlighting the critical role of crystallinity and interface control in orbital torque generation. The resulting spin torque conductivity exceeds that of Pt, indicating the potential of orbital torque ...
San Ko, Jaimin Kang, Su Jae Kim, Hanhwi Jang, Do‐Kyeong Nam, Minseok Kang, Sunghoon Kim, Yeon Sik Jung, Se‐Young Jeong, Kab‐Jin Kim, Byong‐Guk Park   +10 more
wiley   +1 more source

Fractal model of anomalous diffusion [PDF]

European Biophysics Journal, 2015
An equation of motion is derived from fractal analysis of the Brownian particle trajectory in which the asymptotic fractal dimension of the trajectory has a required value. The formula makes it possible to calculate the time dependence of the mean square displacement for both short and long periods when the molecule diffuses anomalously.
openaire   +2 more sources

Thickness‐Defined Transport Regime Toward Near‐Ideal Area‐Type Switching

Advanced Materials, EarlyView.
By thinning the oxide layer, memristors pass from diode‐like and battery‐effect‐dominated behavior toward eventual short‐circuit failure. Within the intermediate 5–6 nm window, they reach a near‐ideal analog area‐type switching regime, featuring symmetric hysteresis, area‐dependent conductance, and continuous linear programming of HRS and LRS with ...
Cuo Wu, Junjie Zhao, Richard Schroedter, Jason Vincent, Hampus Hoffman, Leif Riemenschneider, Abdallh Herbawe, Hao Shen, Ronald Tetzlaff, Stefan Slesazeck, Gianaurelio Cuniberti, Thomas Mikolajick, Benjamin Max   +12 more
wiley   +1 more source