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Quantum magnetometry of transient signals with a time resolution of 1.1 nanoseconds
Published 2025-01-01“…Abstract Quantum magnetometers based on spin defects in solids enable sensitive imaging of various magnetic phenomena, such as ferro- and antiferromagnetism, superconductivity, and current-induced fields. …”
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22
Resolving the electronic ground state of La3Ni2O7-δ films
Published 2025-02-01“…By evaluating the reflection’s azimuthal angle dependence, we confirm the presence of collinear antiferromagnetic spin ordering and charge-like anisotropy ordered with the same periodicity. …”
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23
Synthesis, Magnetization, and Electrical Transport Properties of Mn3Zn0.9Cu0.1N
Published 2013-01-01“…It is found that Mn3Zn0.9Cu0.1N exhibits a first-order antiferromagnetism (AFM) to paramagnetic (PM) transition with the Néel temperature TN ~163 K, and substitution of Cu for Zn would favor ferromagnetism (FM) state and weaken AFM ground state, leading to a convex curvature character of M(T) curve. …”
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24
On the Validity of the Dynamical Mean-Field Approximation for Studying the Two-Dimensional Hubbard Model on a Square Lattice
Published 2010-01-01“…In this situation, we calculate the specific heat and find that when the filling decreases, that is, antiferromagnetic correlations become less important, the agreement between DMFA and QMC results increases. …”
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25
Manipulation by magnetic frustration in ferrotoroidal spin chains via curvature and torsion
Published 2025-01-01“…Considering the cases of easy- and hard-axis anisotropy in ferro- and antiferromagnetic samples, we determine their ground states and analyze the related magnetoelectric multipoles. …”
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26
Direct observation of chiral edge current at zero magnetic field in a magnetic topological insulator
Published 2025-01-01“…The van der Waals antiferromagnet MnBi2Te4 is theorized to be a QAH in odd-layers but has shown Hall resistivity below the quantization value at zero magnetic field. …”
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27
High-Coercivity Ferrimagnet Co₂FeO₂BO₃: XMCD Insights into Charge-Ordering and Cation Distribution
Published 2025-01-01“…A complex magnetic structure in Co<sub>2</sub>FeO<sub>2</sub>BO<sub>3</sub>, with infinite Co²⁺O<sub>6</sub> layers in the <b>bc</b>-plane and strong antiferromagnetic coupling through Fe<sup>3</sup>⁺ ions, is suggested by element-selective hysteresis data, which revealed that Co²⁺ ions contribute both antiferromagnetic and ferromagnetic components to the total magnetization. …”
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28
Composite Operator Method Analysis of the Underdoped Cuprates Puzzle
Published 2014-01-01“…The resulting scenario envisages a smooth crossover between an ordinary weakly interacting metal sustaining weak, short-range antiferromagnetic correlations in the overdoped regime to an unconventional poor metal characterized by very strong, long-but-finite-range antiferromagnetic correlations leading to momentum-selective non-Fermi liquid features as well as to the opening of a pseudogap and to the striking differences between the nodal and the antinodal dynamics in the underdoped regime.…”
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29
XPS-Characterization of Heterometallic Coordination Compounds with Optically Active Ligands
Published 2013-01-01“…In comparison with the homotrinuclear copper(II) compound [Cu3(S,S(+)cpse)3(H2O)3]·8H2O reported previously, the substitution of a copper(II) atom by one cobalt(II) ion gave place to a heterotrinuclear compound 1, which presents ferromagnetic-antiferromagnetic behaviour. When substituting a copper(II) by a nickel(II) ion, the trinuclear compound 2 showed an antiferromagnetic coupling. …”
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30
Electronic Structure and Magnetic Coupling of Pure and Mg-Doped KCuF3
Published 2018-01-01“…Both materials are correctly predicted as being 1D antiferromagnetic insulators, and the superexchange parameters in the crystallographic ab planes and along the c direction measure +10 and -600 K, respectively. …”
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31
Octagonal Defects at Carbon Nanotube Junctions
Published 2013-01-01“…The inclusion of Coulomb interaction splits the localized states in the junction with two octagons, yielding an antiferromagnetic system.…”
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32
Manifestations of the Electron-Phonon Coupling in the Spectroscopy of High-Temperature Superconductors
Published 2010-01-01“…The models where hole doped into antiferromagnet interacts both with magnetic subsystem and with phonons are considered. …”
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33
Large exciton binding energy in a bulk van der Waals magnet from quasi-1D electronic localization
Published 2025-01-01“…Here, we report an exceptionally large exciton binding energy in single crystals of the bulk van der Waals antiferromagnet CrSBr. Utilizing state-of-the-art angle-resolved photoemission spectroscopy and self-consistent ab-initio GW calculations, we present direct spectroscopic evidence supporting electronic localization and weak dielectric screening as mechanisms contributing to the amplified exciton binding energy. …”
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34
Robust quantum spin liquid state in the presence of giant magnetic isotope effect in D3LiIr2O6
Published 2025-01-01“…The structural refinements indicate the different character of the interlayer OH and OD bonds, which results in a giant isotope effect on the magnetic interactions; the antiferromagnetic Curie-Weiss temperature |θ CW| of D3LiIr2O6 increases to ~ 170 K from ~ 100 K of H3LiIr2O6. …”
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35
Recent Advances of Colossal Magnetoresistance in Versatile La-Ca-Mn-O Material-Based Films
Published 2025-01-01“…Hole-doped manganese oxides exhibit a gigantic negative magnetoresistance, referred to as colossal magnetoresistance (CMR), owing to the interplay between double-exchange (DE) ferromagnetic metal and charge-ordered antiferromagnetic insulator/semiconductor phases. Magnetoresistive manganites display a sharp resistivity drop at the metal–insulator transition temperature (T<sup>MI</sup>). …”
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36
Pressure-dependent magnetism of the Kitaev candidate Li2RhO3
Published 2025-01-01“…Magnetic frustration in Li2RhO3 is mainly related to the interplay between ferromagnetic K 1 and antiferromagnetic Γ1, along with the weakness of the third-neighbor coupling J 3 that would otherwise stabilize zigzag order. …”
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37
Gapless topological behaviors in a long-range quantum spin chain
Published 2025-01-01“…Here we explore a cluster-Ising chain with long-range antiferromagnetic interactions that decay as a power law with distance. …”
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38
Voltage Control of Exchange Bias via Magneto-Ionic Approaches
Published 2025-01-01“…The exchange bias (EB) effect denotes a magnetic bias phenomenon originating from the interfacial exchange coupling at the ferromagnetic/antiferromagnetic materials, which plays an indispensable role in the functionality of various devices, such as magnetic random-access memory (MRAM) and sensors. …”
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39
Topological Excitations in Quantum Spin Systems
Published 2013-01-01“…Moreover, an interesting symmetry property is predicted between the excitations from a ferromagnetic model and an antiferromagnetic model. Through a novel approach of ours, a bridge is established between field theoretical formalism and the well-known statistical mechanical treatment of Berezinskii-Kosterlitz-Thouless (BKT) transition involving these topological excitations. …”
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Syntheses, Crystal Structures, Magnetic Behaviours, and Thermal Properties of Three Hydrogen-Bonding Networks Containing Dicyanamide and 4-Hydroxypyridine
Published 2013-01-01“…The variable temperature magnetic susceptibilities measurement of compounds 1 and 3 shows the existence of weak antiferromagnetic interactions between the metal centers. …”
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