Results 131 to 140 of about 2,678,219 (375)

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

Double-Q Instability in Noncentrosymmetric Tetragonal Magnets with Bond-Dependent Magnetic Anisotropy Under an In-Plane Magnetic Field

Magnetism
We investigate the instability toward a double-Q state, which consists of a superposition of two spin density waves at different wave vectors, on a two-dimensional noncentrosymmetric square lattice in an in-plane external magnetic field.
Satoru Hayami
doaj   +1 more source

Fate of the Wigner crystal on the square lattice [PDF]

Journal de Physique IV (Proceedings), 2005
ECRYS-2005 ...
Baeriswyl, Dionys, Fratini, S.
openaire   +4 more sources

Achieving Large and Anisotropic Spin‐Mediated Thermal Transport in Textured Quantum Magnets

Advanced Functional Materials, Volume 35, Issue 12, March 18, 2025.
An advanced solvent‐cast cold pressing method is developed to synthesize highly textured quantum magnets. By aligning spin chains in Ca2CuO3 perpendicular to the pressing direction, a spin‐mediated thermal conductivity of 10 ± 1 W m⁻¹ K⁻¹ is achieved, the highest reported for polycrystalline quantum materials.
Shucheng Guo, Xue Bai, Boqun Liang, Thomas Hoke, Ming Liu, Rafal E. Dunin‐Borkowski, Xi Chen   +6 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

Magnetocaloric effect in two-dimensional spin-1/2 antiferromagnets

, 2005
The magnetocaloric effect is studied at the transition to saturation in the antiferromagnetic spin-1/2 Heisenberg model on the simplest two-dimensional lattices, namely the square and the triangular lattice.
A. Honecker, Honecker, Misguich, Richter, S. Wessel, Sosin, Troyer, Zhitomirsky, Zhu   +8 more
core   +2 more sources

Square roots and lattices

L’Enseignement Mathématique
We construct a point set in the Euclidean plane that elucidates the relationship between the fine-scale statistics of the fractional parts of \sqrt{n} and directional statistics for a shifted lattice.
openaire   +3 more sources

Dynamic Micromechanical Characterization of 3D Printed Bone In Vitro Models Manufactured via Vat Photopolymerization

Advanced Functional Materials, EarlyView.
This study presents a novel approach to designing and fabricating high‐porosity 3D‐printed scaffolds using a customized resin. Scaffold geometry, cellular interactions, and mechanical properties are analyzed to demonstrate these engineered bone models.
Sera Choi, Elizabeth Hunt, Edward A. Shangin, Zahra Bahranifard, Emma Nguyen, Caitlyn J. Collins, Abby R. Whittington   +6 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

Bose-Einstein Condensates in Rotating Lattices

, 2006
Strongly interacting bosons in 2D in a rotating square lattice are investigated via a modified Bose-Hubbard Hamiltonian. Such a system corresponds to a rotating lattice potential imprinted on a trapped Bose-Einstein condensate. Second-order quantum phase
J. R. Abo-Shaeer, L. D. Carr, L. D. Landau, M. J. Holland, Rajiv Bhat, S. Sachdev   +5 more
core   +1 more source