Results 141 to 150 of about 63,592 (262)
Superconductivity in correlated wavefunctions
, 1988 We discuss variational approaches to the one band Hamiltonian in the projected subspace. This Hamiltonian has a kinetic energy term for charge degree of freedom and nearest neighbor antiferromagnetic spin-spin interactions.
Gros, C +3 more
core
High Cooling Rate for LRE123 Stoichiometry Control in Preparation of High‐Tc Bulk Superconductors
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.This review presents the cooling‐rate‐control melt‐growth (CRCMG) method as an effective strategy for regulating LRE123 cation stoichiometry. By accelerating the cooling rate during crystallization, oxygen vacancies are increased in the growing lattice, which suppresses LRE3+/Ba2+ substitution and yields near‐ideal 1:2:3 stoichiometry with enhanced ...
Yanhan Zhu, Xin Yao
wiley +1 more source
, 2013 The advent of high-temperature superconducting (HTS) materials has renewed interest in the possibilities for superconducting power apparatus offering real economic benefit, within power ratings typical of present system practice.
Sykulski, Jan K.
core +1 more source
Electron, EarlyView.Herein, a biomimetic, anisotropic, robust wood‐derived 3D conductive Bio‐C@YB2C2 framework was synthesized by in situ boron/carbon thermal reduction reaction on the carbonized wood template. The as‐obtained Bio‐C@YB2C2 composites accurately inherit the specific microstructure of natural wood, providing pathways for terahertz wave dissipation.
Yong‐Mei Hou +9 more
wiley +1 more source
Resonating-valence-bond superconductor from small Fermi surface in twisted bilayer graphene. [PDF]
Nat CommunZhao JY, Zhang YH.
europepmc +1 more source
Rotational Anisotropy Raman Spectrometer for High‐Sensitivity Crystallographic Symmetry Analysis
Laser &Photonics Reviews, EarlyView.We introduce rotational‐anisotropy Raman spectroscopy, an enhanced scheme that overcomes the limitations of traditional polarization‐resolved Raman techniques. This method reveals previously inaccessible phonon symmetries and resolves directional anisotropy of phonon‐polaritons in benchmark crystals, establishing a powerful new tool for characterizing ...
Di Cheng +4 more
wiley +1 more source
Emergent Superconductivity and Nonreciprocal Transport in a van der Waals Dirac Semimetal/Antiferromagnet Heterostructure. [PDF]
Nano LettIslam S +8 more
europepmc +1 more source
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 +9 more
wiley +1 more source
Design and optimisation of a coreless superconducting synchronous generator
, 2010 Constantly increasing demand for electrical power requires more efficient and more powerful machines to be built. The conventional technology cannot provide such machines.
Lukasik, Bartosz
core
Noncatalytic Synthesis of High‐Density and Small‐Diameter WS2 Nanotubes
National Materials, EarlyView.A noncatalytic strategy enables high‐density WO₂.₉ nanowire synthesis on engineered substrates. Subsequent sulfuration converts them into small‐diameter WS₂ nanotubes. Individual nanotube devices show superior photoresponse, highlighting a scalable route for optoelectronics.
Fengkai Zhou +10 more
wiley +1 more source