Results 51 to 60 of about 57,476 (265)

Reorientation Transition Between Square and Hexagonal Skyrmion Lattices near the Saturation into the Homogeneous State in Quasi-Two-Dimensional Chiral Magnets

Nanomaterials
I revisit the well-known phase transition between the hexagonal skyrmion lattice and the homogeneous state within the phenomenological Dzyaloshinskii theory for chiral magnets, which includes only the exchange, Dzyaloshinskii–Moriya, and Zeeman energy ...
Andrey O. Leonov
doaj   +1 more source

Micromechanical Insights into Sinter‐Based Additively Manufactured NiTi with Nb as a Sintering Aid

Advanced Engineering Materials, EarlyView.
This study investigates the microstructural and micromechanical behavior of NiTiNb made through filament‐based materials extrusion via chemically correlated nanoindentation. B19' remnants from the original powder lead to Nb gradients within NiTiNb grains due to the short sintering times required in liquid‐phase sintering.
Nerea Abando, Rebecca A. Gallivan, Nensi Toncich, Arnold Müller, Ralph Spolenak   +4 more
wiley   +1 more source

Programmable Reconfiguration of Hybrid 4D Chiral Metamaterials via Mechanical and Thermal Stimuli

Advanced Engineering Materials, EarlyView.
A class of hybrid chiral mechanical metamaterials is designed to achieve programmable reconfiguration through soft networks, hinges, and bilayer joints integrated with rigid units. Responsive to mechanical and thermal stimuli, these structures exhibit large volume changes, tunable deformation pathways, and both positive and negative thermal expansion ...
Yunyao Jiang, Siyao Liu, Yaning Li
wiley   +1 more source

Cobalt Tungstate Characterization Using Matryoshka‐Structure Filter

Advanced Engineering Materials, EarlyView.
The green synthesis of cobalt tungstate (CoWO4) using natural polymerizing agents from agar–agar and commercial produces environmentally friendly materials with tunable structural and electromagnetic properties. X‐ray diffraction and Rietveld refinement correlate crystal structure with microwave transmission losses in Matryoshka‐type filters.
Amanda Gomes Barboza, Camila da Silva Cavalcanti, Abid Raza, Marina de Oliveira Alencar, Evanimek Bernardo Sabino da Silva, Guilherme Nunes de Melo, Marcos Tavares de Melo   +6 more
wiley   +1 more source

Linking Heat Treatment to Plastic Deformation in Pearlitic Steels Through Mesoscale Modeling

Advanced Engineering Materials, EarlyView.
Surface wear on rail and wheel steels results from surface deformation during use. This research uses mathematical models to forecast the plastic behavior of pearlitic steels, connected to the microstructure formed during heat treatment. While the cooling rate impacts the steels’ strength, the size of prior austenite grains and blocks does not ...
Saham Sadat Sharifi, Hamed Davoodi Jooneghani, Maria Domankova, Klaus Six, Gerald Trummer, Maria Cecilia Poletti   +5 more
wiley   +1 more source

Generation of Localized Surface Plasmon Resonance Using Hybrid Au–Ag Nanoparticle Arrays as a Sensor of Polychlorinated Biphenyls Detection

Sensors, 2016
In this study, the hybrid Au–Ag hexagonal lattice of triangular and square lattice of quadrate periodic nanoparticle arrays (PNAs) were designed to investigate their extinction spectra of the localized surface plasmon resonances (LSPRs).
Jing Liu, Haoyuan Cai, Chaoyang Chen, Guangsong Yang, Cheng-Fu Yang   +4 more
doaj   +1 more source

Improved Strength and Corrosion Resistance of Ti–50Zr Alloy Through Heat Treatment

Advanced Engineering Materials, EarlyView.
This work systematically analyzes the effects of heat treatment on mechanical properties and corrosion behavior of Ti‐50Zr alloy produced via vacuum arc melting. Microstructure transforms from coarse lamellar α phase in as‐cast condition to fine and uniformly distributes acicular α′ phase in heat‐treatment state.
Yuhua Li, Qian Zhang, Rong Zhao, Haojie Wang, Yujing Liu, Zibo Zhao, Chengliang Yang, Lai‐Chang Zhang   +7 more
wiley   +1 more source

Mutually attracting spin waves in the square-lattice quantum antiferromagnet

SciPost Physics, 2018
The Heisenberg model for S=1/2 describes the interacting spins of electrons localized on lattice sites due to strong repulsion. It is the simplest strong-coupling model in condensed matter physics with wide-spread applications.
Michael Powalski, Kai P. Schmidt, Götz S. Uhrig
doaj   +1 more source

Stabilized Intermediate Phase Via Pseudo‐Halide Anions Toward Highly Efficient and Light‐Soaking Stable Perovskite Solar Cells

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
The formate pseudo‐halide anion is strategically introduced at the buried interface to stabilize the intermediate phases formed during perovskite crystallization. The controlled crystallization enhances crystallinity and alleviates tensile strain, eliminating residual PbI2 near the buried interface.
Jongdeuk Seo, Yun Seop Shin, Dong Gyu Lee, Jaehwi Lee, Jina Roe, Jung Geon Son, Woojin Lee, Yeonjeong Lee, Dongmin Lee, Ji Won Song, Tae Kyung Lee, Dong Suk Kim, Jin Young Kim   +12 more
wiley   +1 more source

Emergent superconductivity in an iron-based honeycomb lattice initiated by pressure-driven spin-crossover

Nature Communications, 2018
Up to now, all iron-based high-T c superconductors contain a square iron lattice. Here, Wang et al. report the observation of superconductivity in an iron honeycomb lattice accompanied with pressure-driven spin-crossover, in-plane lattice collapse and ...
Yonggang Wang, Jianjun Ying, Zhengyang Zhou, Junliang Sun, Ting Wen, Yannan Zhou, Nana Li, Qian Zhang, Fei Han, Yuming Xiao, Paul Chow, Wenge Yang, Viktor V. Struzhkin, Yusheng Zhao, Ho-kwang Mao   +14 more
doaj   +1 more source