Results 71 to 80 of about 57,852 (257)
Classical Antiferromagnetism in Kinetically Frustrated Electronic Models [PDF]
, 2014 We study the infinite U Hubbard model with one hole doped away half-filling, in triangular and square lattices with frustrated hoppings that invalidate Nagaoka's theorem, by means of the density matrix renormalization group.
Bravo, B. +4 more
core +3 more sources
Frontiers in PhysicsIn this research work, the Co-occurrence of superconductivity and antiferromagnetism in Ca0.74 1 La0.26 1 Fe1−xCox As2 iron-based high-temperature superconductors have been investigated.
Gebru Tesfaye Sherka +1 more
doaj +1 more source
Crystals, 2019 Thermodynamic picture induced by π-d interaction in a molecular magnetic superconductor κ-(BETS)2FeX4 (X = Cl, Br), where BETS is bis(ethylenedithio)tetraselenafulvalene, studied by single crystal calorimetry is reviewed.
Shuhei Fukuoka +4 more
doaj +1 more source
Materials Research Express, 2020 Magnetic phase transitions under high pressure are reported for the diamond lattice antiferromagnet Co _3−x Rh _x O _4 in the range of 0 ≤ x ≤ 2.0, which is an isostructural S = 3/2 system for the well-known frustrated antiferromagnet CoAl _2 O _4 ...
T Naka +9 more
doaj +1 more source
, 2006 We analyze the competition between antiferromagnetism and superconductivity in the two-dimensional Hubbard model by combining a functional renormalization group flow with a mean-field theory for spontaneous symmetry breaking.
Metzner, W., Reiss, J., Rohe, D.
core +1 more source
Inorganics, 2019 Molecular systems containing magnetically interacting (exchange-coupled) manganese ions are important in catalysis, biomimetic chemistry, and molecular magnetism. The reliable prediction of exchange coupling constants with quantum chemical methods is key
Dimitrios A. Pantazis
doaj +1 more source
Antiferromagnetic magnonic crystals [PDF]
Physical Review B, 2015 We describe the features of magnonic crystals based upon antiferromagnetic elements. Our main results are that with a periodic modulation of either magnetic fields or system characteristics, such as the anisotropy, it is possible to tailor the spin wave spectra of antiferromagnetic systems into a band-like organization that displays a segregation of ...
Troncoso Coña, Roberto +3 more
openaire +5 more sources
Low-dimensional Magnetism in Compounds with Different Dimensions of Magnetic Interaction
Doklady Belorusskogo gosudarstvennogo universiteta informatiki i radioèlektroniki, 2022 The results of a comparison of the exchange interaction mechanisms in low dimensional magnetic systems are presented. It has been shown that ZnO crystal may be used as a semiconductor non-magnetic matrix for the formation of quasi-one-dimensional and ...
M. S. Baranava
doaj +1 more source
Diluted Graphene Antiferromagnet [PDF]
Physical Review Letters, 2007 We study RKKY interactions between local magnetic moments for both doped and undoped graphene. We find in both cases that the interactions are primarily ferromagnetic for moments on the same sublattice, and antiferromagnetic for moments on opposite sublattices.
Luis Brey +3 more
openaire +4 more sources
Non-local coupling between antiferromagnets and ferromagnets in cavities [PDF]
Phys. Rev. Lett. 121, 087204 (2018), 2018 Microwaves couple to magnetic moments in both ferromagnets and antiferromagnets. Although the magnons in ferromagnets and antiferromagnets radically differ, they can become entangled via strong coupling to the same microwave mode in a cavity. The equilibrium configuration of the magnetic moments crucially governs the coupling between the different ...
arxiv +1 more source