Results 131 to 140 of about 1,217,161 (237)

Emergence of Rashba Spin‐Orbit Coupling in Staggered‐Gyromagnetic Photonic Crystals

Laser &Photonics Reviews, EarlyView.
Rashba spin‐orbit coupling emerges in a staggered‐gyromagnetic photonic crystal under a uniform out‐of‐plane magnetic bias. The staggered magnetization splits a four‐fold Dirac point into a Rashba band structure carrying helical spin textures, verified by a four‐band k‐p model.
Yao‐Ting Wang, Wenlong Gao
wiley   +1 more source

Generalized Composition Operators Between Weighted Dirichlet Type Spaces and Bloch Type Spaces

Journal of Mathematical Extension, 2012
We characterize bounded and compact generalized composition operators between Bloch type spaces and weighted Dirichlet type spaces. Then, we show that these results can be employed to characterize bounded and compact Volterra type operators between ...
Sh. Rezaei∗, H. Mahyar
doaj  

Spin‐Polarized Magnetic Metal Electrodes for Magnetic Tunnel Junctions

MetalMat, EarlyView.
This perspective surveys spin‐polarized magnetic metal electrodes for magnetic tunnel junctions, systematically covering conventional ferromagnets, collinear/noncollinear antiferromagnets, and emergent altermagnets. It compares tunneling polarization origins across these classes and emphasizes that effective electrode polarization is a momentum ...
Zhiyuan Duan, Peixin Qin, Li Liu, Guojian Zhao, Sixu Jiang, Xiaoyang Tan, Jingyu Li, Xiaoning Wang, Ziang Meng, Zhiqi Liu   +9 more
wiley   +1 more source

Optimal Experimental Design for Fast and Accurate Relaxation Time Measurements in Magnetic Resonance

Magnetic Resonance in Chemistry, EarlyView.
We apply D‐optimal experimental design to relaxation constant estimation in NMR relaxometry. The resulting sampling schedules concentrate measurements where the signal is most sensitive to the relaxation constant. Compared with conventional linear or logarithmic spacing, D‐optimal designs achieve better estimation accuracy and precision with fewer ...
Natalie E. Klein, Adam R. Altenhof, Amber J. Day, Michelle A. Espy, Michael W. Malone   +4 more
wiley   +1 more source

A Study on Square-Mean S-Asymptotically Bloch Type Periodic Solutions for Some Stochastic Evolution Systems with Piecewise Constant Argument

Mathematics
This work is mainly focused on square-mean S-asymptotically Bloch type periodicity and its applications. The main aim of the paper is to introduce the definition of square-mean S-asymptotically Bloch type periodic processes with values in complex Hilbert
Mamadou Moustapha Mbaye, Amadou Diop, Gaston Mandata N’Guérékata   +2 more
doaj   +1 more source

Self‐calibrated B1+ and B0 Field Inhomogeneities Estimation (SAFE) in 3D Magnetic Resonance Fingerprinting

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop SAFE, a self‐calibrated framework to estimate B1+ and B0 field inhomogeneities directly from conventional magnetic resonance fingerprinting (MRF) acquisitions and improve its quantification accuracy. Methods SAFE utilized a two‐step approach. First, two physics‐informed image markers are extracted from the MRF data to create
Mengze Gao, Xiaozhi Cao, Daniel Raz Abraham, Zihan Zhou, Nan Wang, Congyu Liao, Yang Yang, Hanlin Sun, Hongwei Li, Yan Bai, Yu Shen, Yaping Wu, Meiyun Wang, Kawin Setsompop   +13 more
wiley   +1 more source

MÜNTZ SPACES AND SPECIAL BLOCH TYPE INEQUALITIES

, 2017
In this paper, we are interested in classical Müntz spaces and their properties. We first reprove Müntz theorem and obtain the Clarkson-Erdös-Schwartz expansion in the non dense case for some general abstract Müntz spaces without invoking any blow up ...
Lefèvre, Pascal
core   +1 more source

Differences of weighted composition operators between weighted Banach spaces of holomorphic functions and weighted Bloch type spaces

Cubo, 2010
We consider analytic self-maps ø‑1,ø ‑2 of the open unit disk as well as analytic mapsψ 1, ψ2. These maps induce differences of weighted composition operators acting between weighted Banach spaces of holomorphic functions and ...
Elke Wolf
doaj  

The Bergman space, the Bloch space, and commutators of multiplication operators

Duke Mathematical Journal, 1986
Let \(L^ 2_ a\) denote the Bergman space of functions analytic in the unit disc \({\mathbb{D}}\) and square summable with respect to the area measure. For \(f\in L^{\infty}({\mathbb{D}})\) the Hankel operator \(H_ f\) on \(L^ 2_ a\) is defined by \[ (1)\quad H_ f(g)=(I-{\mathbb{P}})(fg), \] where \({\mathbb{P}}\) is the orthogonal projection from \(L ...
openaire   +2 more sources

Toward Inter‐Sonication Monitoring of Skull and Brain Temperatures in Transcranial MRgFUS Using a 3D Stack‐of‐Spirals Sequence

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose To develop an MRI approach for simultaneous skull and brain temperature monitoring between sonications in transcranial MR‐guided focused ultrasound (MRgFUS) surgeries. Methods A 3D stack‐of‐spirals dual‐echo ultra‐short TE (UTE) sequence incorporating fat suppression, spiral deblurring, trajectory measurement, and B1 correction was ...
Sheng Chen, Steven P. Allen, John P. Mugler III, G. Wilson Miller, Craig H. Meyer   +4 more
wiley   +1 more source