Results 111 to 120 of about 340,959 (272)

Lorenz gauged vector potential formulations for the time-harmonic eddy-current problem with L∞-regularity of material properties [PDF]

, 2006
In this paper we consider some Lorenz gauged vector potential formulations of the eddy-current problem for the time-harmonic Maxwell equations with material properties having only L1-regularity.
Fernandes, Paolo, Valli, Alberto
core  

Eigenvalue problems for the complex PT-symmetric potential V(x)= igx

, 2006
The spectrum of complex PT-symmetric potential, $V(x)=igx$, is known to be null. We enclose this potential in a hard-box: $V(|x| \ge 1) =\infty $ and in a soft-box: $V(|x|\ge 1)=0$.
Ahmed, Ahmed, Ahmed, Ahmed, Ahmed, Ahmed, Bagchi, Bender, Bender, Bender, Bender, Cooper, Heiss, Japaridze, Kato, Khare, Lee, Mondal, Mostafazadeh, Reed, Sudarshan, Zafar Ahmed, Znojil   +22 more
core   +2 more sources

Domain Wall Rebounds Driven by Competing Entropic and Spin‐Transfer Torques in Cylindrical Nanowires

Advanced Functional Materials, EarlyView.
Domain‐wall motion in cylindrical magnetic nanowires driven by nanosecond current pulses. Low current densities efficiently displace domain walls, whereas higher currents cause rebound at the wire ends. The effect results from the interplay between spin‐transfer torque and thermally induced processes, highlighting the role of thermal gradients in ...
Elias Saugar, Jorge Marqués‐Marchán, Sara Catalano, Agustina Asenjo, Michael Foerster, Miguel Angel Niño, Manuel Vazquez, Fèlix Casanova, Arantxa Fraile Rodríguez, Rafael P. Del Real, Oksana Chubykalo‐Fesenko, Cristina Bran   +11 more
wiley   +1 more source

Flavor dependent critical endpoint from holographic QCD through machine learning

Journal of High Energy Physics
QCD phase diagram in the T − μ plane and the equation of state for pure gluon, 2-flavor, 2+1-flavor systems, and 2+1+1-flavor systems have been investigated using the Einstein-Maxwell-Dilaton (EMD) framework at finite temperature and chemical potential ...
Xun Chen, Mei Huang
doaj   +1 more source

Stacking‐Engineered Magnonic Topology and Transport in Honeycomb Homobilayers

Advanced Functional Materials, EarlyView.
ABSTRACT Topological magnons have emerged as a promising platform for dissipationless bosonic transport. However, a straightforward and effective strategy to engineer such topological states in real materials has yet to be fully realized. Here, a general scheme for controlling magnonic topological states via stacking engineering in van der Waals ...
Xiaoran Feng, Yingxi Bai, Bo Yuan, Ying Dai, Baibiao Huang, Chengwang Niu, Xiaotian Wang   +6 more
wiley   +1 more source

Asymmetric Contact Engineering for Bottleneck‐Free Transport in 2D MoS2 Field‐Effect Transistor

Advanced Functional Materials, EarlyView.
Performance of 2D semiconductor transistors is limited by carrier transport bottlenecks arising from specific device geometries. By identifying this structural limitation, a bottleneck‐free asymmetric transistor architecture (BATA) is introduced to improve carrier transport.
Jinhyeok Pyo, Junsung Byeon, Jungmoon Lim, Sohyeon Park, Sungsan Kang, Byeongchan Kim, Gyuhwi Jeong, Haerim Kim, Bongjun Kim, SeungNam Cha, Sangyeon Pak   +10 more
wiley   +1 more source

Asymptotically linear Schrödinger–Poisson systems with potentials vanishing at infinity

Journal of Mathematical Analysis and Applications, 2011
The author studies the Schrödinger-Poisson system \[ \begin{cases} -\Delta u+V(x)u+\lambda\varphi(x)u= K(x)f(u),\quad x\in{\mathbb R}^3, \\ -\Delta\varphi=u^2, \lim\limits_{|x|\to\infty} \varphi(x)=0, \end{cases} \] where \(\lambda > 0\) is a parameter, the potential \(V(x)\) is continuous, radial and may be vanishing at infinity, \(f(s)\) is ...
openaire   +1 more source

Copper‐Based Crystalline‐Metallic Glass Composite Thin Films: A Novel Material with Enhanced Strength and Thermally Stable Nanotwins

Advanced Functional Materials, EarlyView.
A Cu‐based crystal‐glass composite with high‐density twins is identified by a fast screening technique using combinatorial sputtering together with XRD and nanoindentation mapping. This bamboo‐like structure demonstrates homogenous plastic flow and retains high strength during in situ high temperature tests, up to 1 GPa at 550°C, owing to those ...
Chunhua Tian, Amit Sharma, Krzysztof Wieczerzak, Alexander Groetsch, Manish Jain, Nicolò Maria della Ventura, Remo Widmer, Fedor F. Klimashin, Johann Michler, Jakob Schwiedrzik, Xavier Maeder   +10 more
wiley   +1 more source

Fate of inflation and the natural reduction of vacuum energy

EPJ Web of Conferences, 2014
In the standard cosmology, an artificial fine tuning of the potential is inevitable for vanishing cosmological constant, though slow-rolling uniform scalar field easily causes cosmic inflation.
Nakamichi Akika, Morikawa Masahiro
doaj   +1 more source

Pixelation‐Free, Monolithic Iontronic Pressure Sensors Enabling Large‐Area Simultaneous Pressure and Position Recognition via Machine Learning

Advanced Functional Materials, EarlyView.
A pixelation‐free, monolithic iontronic pressure sensor enables simultaneous pressure and position sensing over large areas. AC‐driven ion release generates spatially varying impedance pathways depending on the pressure. Machine learning algorithms effectively decouple overlapping pressure–position signals from the multichannel outputs, achieving high ...
Juhui Kim, Junseo Lee, Kwang‐Hun Choi, Seongil Im, Jae Hong Kim, Changsoon Choi, Junghwan Byun, Changhwan Shin, Ho Won Jang, Hyunsu Ju, Jung Ah Lim   +10 more
wiley   +1 more source