Results 41 to 50 of about 6,554 (262)

The Difference Problem of Obtaining the Parameter of a Parabolic Equation

Abstract and Applied Analysis, 2012
The boundary value problem of determining the parameter 𝑝 of a parabolic equation 𝜐(𝑡)+𝐴𝜐(𝑡)=𝑓(𝑡)+𝑝(0≤𝑡≤1),𝜐(0)=𝜑,𝜐(1)=𝜓 in an arbitrary Banach space 𝐸 with the strongly positive operator 𝐴 is considered.
Charyyar Ashyralyyev, Oznur Demirdag
doaj   +1 more source

Effect of Optical Illumination on Bubble Nanodomains

Advanced Functional Materials, EarlyView.
Stable surface‐confined nanoscale bubble domains are created and manipulated in PMN‐PT single crystals. Under above‐bandgap illumination, these bubble nanodomains remain unchanged. However, upon illumination cessation, they rapidly expand to switch the entire crystal surface, due to the accumulation of a large reservoir of electrons at the crystal ...
Haoze Zhang, Anju Ahlawat, Richard F. Webster, Yunlong Sun, Dinesh Shukla, Danyang Wang, Jan Seidel, Alexei Gruverman, Pankaj Sharma   +8 more
wiley   +1 more source

Physics of Ferroelectric Wurtzite Al1−xScxN Thin Films

Advanced Electronic Materials
Al1−xScxN emerges as a revolutionary ferroelectric material within the III‐N family. It combines exceptional switchable polarization (80–165 µC cm−2), highly tunable coercive fields (1.5–6.5 MV cm−¹), and a wide bandgap (4.9–5.6 eV).
Feng Yang
doaj   +1 more source

Polarization‐Dependent Synaptic‐Like Electro‐Optical Response in Ferroelectric Nematic Liquid Crystals

Advanced Functional Materials, EarlyView.
Ferroelectric nematic liquid crystals (FNLCs) offer fast, tunable polarization and low‐voltage operation but suffer from poor polarization retention at zero field. Semiconductor‐modified FNLCs enhance polarization retention and exhibit short‐ and long‐term electro‐optical responses, while also supporting spike‐type signal integrations.
Kutay Sagdic, Weiming Yao, Danqing Liu
wiley   +1 more source

Prophet Muhammad and the Market Governance of Medina: The Institutional Framework of Price Stability in Historical Perspective

Hamidah
Price instability and exploitative practices such as hoarding and monopoly characterized the Medina market during the early transitional phase of Islam.
Taufik Wahyu Nugroho, Wahyudhi Ramadhan, M. Septyan Rizky, Hendra Syahputra, Fahmi Syahab   +4 more
doaj   +1 more source

On the problem of determining the parameter of an elliptic equation in a Banach space

Nonlinear Analysis, 2014
The boundary value problem of determining the parameter of an elliptic equation -u''(t)+Au(t)=f(t)+p (0⩽t⩽T), u(0)=φ, u(T)=ψ, u(λ)=ξ ...
Allaberen Ashyralyev, Charyyar Ashyralyyev   +1 more
doaj   +1 more source

PIN–PMN–PT piezoelectric crystals with increased rhombohedral-to-tetragonal phase transition temperature [PDF]

Journal of Advanced Dielectrics, 2014
In this work, crystal growth and characterization of PIN–PMN–PT (29–59% PIN and 28–35% PT) were conducted to understand how PIN ratio in the PIN–PMN–PT system impacts its phase stability during crystallization.
Jun Luo, Shujun Zhang, Wesley Hackenberger, Thomas R. Shrout   +3 more
doaj   +1 more source

Thermally Robust Spin–Orbit Torque Switching in Low‐Resistivity Mo‐Alloyed β‐W Heterostructures

Advanced Functional Materials, EarlyView.
Mo‐alloyed β‐W heterostructures exhibit enhanced spin‐orbit torque efficiency, reduced resistivity and switching current density, and reliable operation from −50 to +150°C. The optimized W87.3Mo12.7 device achieves high spin Hall conductivity with thermal robustness, highlighting its potential for energy‐efficient magnetic memory and automotive ...
Han Seok Ko, Hyun Ju Lee, Jeong Kyu Lee, Han Sol Kim, Min Seok Kim, Quynh Anh T. Nguyen, Sonny H. Rhim, Young Keun Kim   +7 more
wiley   +1 more source

On well-posedness of the nonlocal boundary value problem for parabolic difference equations

Discrete Dynamics in Nature and Society, 2004
We consider the nonlocal boundary value problem for difference equations (uk−uk−1)/τ+Auk=φk, 1≤k≤N, Nτ=1, and u0=u[λ/τ]+φ ...
A. Ashyralyev, I. Karatay, P. E. Sobolevskii   +2 more
doaj   +1 more source

Ferroelectric Polarization Enabled Threshold Voltage Modulation in High Electron Mobility Transistor

Advanced Functional Materials, EarlyView.
A comprehensive model is developed to capture the coupled electrostatics of a ferroelectric capacitor and a metal‐insulator‐semiconductor high electron mobility transistor (MISHEMT) connected in ferroelectric‐metal high electron mobility transistor (FeMHEMT) configuration.
Wentian Gao, Andre Wachowiak, Thomas Mikolajick, Uwe Schroeder, Roberto Guido   +4 more
wiley   +1 more source