Results 51 to 60 of about 3,137,706 (214)

Extracting the differential phase in dual atom interferometers by modulating magnetic fields

, 2016
We present a new scheme for measuring the differential phase in dual atom interferometers. The magnetic field is modulated in one interferometer, and the differential phase can be extracted without measuring the amplitude of the magnetic field by ...
Chen, Xi, Li, Da-Wei, Li, Run-Bing, Song, Hong-Wei, Wang, Jin, Wang, Yu-Ping, Zhan, Ming-Sheng, Zhong, Jia-Qi, Zhu, Lei   +8 more
core   +1 more source

Effect of Nb and B on the Precipitation Behaviors in Al-Ti-Nb Balanced-Ratio Ni-Based Superalloy: A Phase-Field Study

Crystals
In this paper, quantitative two-dimensional (2-D) phase-field simulations were performed to gain insight into the effects of B and Nb for Al-Ti-Nb balanced-ratio GH4742 alloys.
Na Ta, Hongguang Zhou, Cong Zhang, Ruijie Zhang, Lijun Zhang   +4 more
doaj   +1 more source

PIC Simulations of the Temperature Anisotropy-Driven Weibel Instability: Analyzing the perpendicular mode

, 2010
An instability driven by the thermal anisotropy of a single electron species is investigated in a 2D particle-in-cell (PIC) simulation. This instability is the one considered by Weibel and it differs from the beam driven filamentation instability.
A Stockem, Borodachev L V, Dieckmann M E, Dieckmann M E, M E Dieckmann, Medvedev M V, Palodhi L, Pétri J, R Schlickeiser, Rowlands G, Schlickeiser R, Silva L O, Stockem A, Stockem A   +13 more
core   +1 more source

Phase Field Simulation of Al-Fe-Mn-Si Quaternary Eutectic Solidification

Metals
This study investigates the eutectic equilibrium phases in a multicomponent system through 3-D multi-phase-field simulations. Emphasizing the directional solidification process, the work examines the growth dynamics of intermetallic phase Al13Fe4, a ...
Kimiya NouraniNiaki, Murali Uddagiri, Daysianne Isidorio, Oleg Shchyglo, Ingo Steinbach   +4 more
doaj   +1 more source

Ferroelectric Memory Based on Topological Domain Structures: A Phase Field Simulation

Crystals, 2022
The low storage density of ferroelectric thin film memory currently limits the further application of ferroelectric memory. Topologies based on controllable ferroelectric domain structures offer opportunities to develop microelectronic devices such as ...
Jing Huang, Pengfei Tan, Fang Wang, Bo Li   +3 more
doaj   +1 more source

Accelerating fracture simulation with phase field methods based on Drucker-Prager criterion

Frontiers in Physics, 2023
The paper presents a framework for accelerating the phase field modeling of compressive failure of rocks. In this study, the Drucker-Prager failure surface is taken into account in the phase field model to characterize the tension-compression asymmetry ...
Bin Liu, Zhenghe Liu, Lusheng Yang
doaj   +1 more source

Controlled spontaneous emission

, 2007
The problem of spontaneous emission is studied by a direct computer simulation of the dynamics of a combined system: atom + radiation field. The parameters of the discrete finite model, including up to 20k field oscillators, have been optimized by a ...
A K Khitrin, Braginsky V B, Breuer H-P, Craig D P, Jae-Seung Lee, Jaynes F W, Mary A Rohrdanz, Nielsen M A, Sansonetti J E, Vedral V   +9 more
core   +1 more source

Research on polarization switching dynamics in barium titanate ferroelectric tunnel junctions

Gongneng cailiao yu qijian xuebao
To address the high energy consumption and low efficiency caused by the data transfer bottleneck between processors and memory in von Neumann architectures, this study explores a neuromorphic computing solution based on ferroelectric tunnel junctions ...
Zhan-feng ZHANG, Cao-zhuang DENG, Chen-xi WANG, Min-min ZHU   +3 more
doaj   +1 more source

Quantitative isothermal phase-field simulations of peritectic phase transformation in FeMn system

Journal of Materials Research and Technology, 2016
The present investigation shows quantitative results for the peritectic phase transformation of FeMn alloys utilizing phase-field simulations in 1-D and 2-D. The phase-field method used was based on an adaptation of the proposal of Folch and Plapp [Phys.
Celso Luiz Moraes Alves, Joao Luiz Lopes Rezende, Dieter Senk, Julia Kundin   +3 more
doaj   +1 more source

Topological Defects in the Random-Field XY Model and the Pinned Vortex Lattice to Vortex Glass Transition in Type-II Superconductors

, 1996
As a simplified model of randomly pinned vortex lattices or charge-density waves, we study the random-field XY model on square ($d=2$) and simple cubic ($d=3$) lattices.
A. E. Koshelev, A. Fukuyama, A.I. Larkin, A.I. Larkin, B. Khaykovich, C. Bernhard, D. Cule, D. W. Braun, D.A. Huse, D.A. Huse, David A. Huse, E. Zeldov, G. Blatter, G.G. Batrouni, G.S. Iannacchione, H. Obara, H. Pastoriza, H. Rieger, H. Safar, H. Safar, H.J. Jensen, H.S. Bokil, J. Villain, J.A. Fendrich, J.D. Reger, J.M. Kosterlitz, K. Biljakovíc, L. Balents, L.J. Glazman, M. Guo, M.J.P. Gingras, M.P.A. Fisher, Michel J. P. Gingras, P.A. Lee, R. Cubitt, R. Fisch, R. Fisch, R. Fisch, R. Fisch, R. Fisch, R. Gupta, R. Liang, S. Bhattacharya, S.R. Lee, T. Giamarchi, T. Giamarchi, T. Giamarchi, T. Nattermann, T.K. Worthington, Y. Imry, Y.H. Li   +50 more
core   +1 more source