Results 21 to 30 of about 3,492,750 (294)

Coherent spin dynamics and magnetization transport in nanoscale magnetism [PDF]

open access: yes, 2003
In this dissertation, we present a detailed theoretical analysis of the spin dynam- ics in small antiferromagnetic systems in view of macroscopic quantum phenom- ena, possible applications in quantum information processing, and transport of the ...
Meier, Florian
core   +1 more source

Ionic liquid gating control of RKKY interaction in FeCoB/Ru/FeCoB and (Pt/Co)2/Ru/(Co/Pt)2 multilayers

open access: yesNature Communications, 2018
Energy efficient control of magnetization in antiferromagnetic materials is one of the key ingredients for antiferromagnetic spintronics. Here the authors demonstrate voltage control of RKKY interaction and magnetization switching in synthetic ...
Qu Yang   +12 more
doaj   +1 more source

Ultrafast activation of the double-exchange interaction in antiferromagnetic manganites

open access: yesAPL Materials, 2023
In doped manganite systems, strong electronic correlations result in rich phase diagrams where electron delocalization strongly affects the magnetic order.
J. R. Hortensius   +5 more
doaj   +1 more source

Antiferromagnetism and superconductivity in a model with extended pairing interactions [PDF]

open access: yesThe European Physical Journal B, 2001
The competition between antiferromagnetism and the $d+id$ superconducting state is studied in a model with near and next near neighbour interactions in the absence of any on-site repulsion. A mean field study shows that it is possible to have simultaneous occurrence of an antiferromagnetic and a singlet $d+id$ superconducting state in this model.
Maitra, Tulika, Beck, H., Taraphder, A.
openaire   +2 more sources

Chain Compounds Based on Paddle-wheel Copper(II) Carboxylate Bearing Four Nitroxide Radicals

open access: yesMagnetochemistry, 2018
Chain compounds of paddle-wheel Cu2-clusters of 3-carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy (Hcaproxy) and 4-carboxy-2,2,6,6-tetramethylpiperidinyloxy (Hcatempo) and N,N’-bidentate ligands (L = 4,4′-bipyridine (4,4′-bpy), 1,2-bis(4 ...
Masahiro Mikuriya   +8 more
doaj   +1 more source

Ferromagnetic kinetic exchange interaction in magnetic insulators

open access: yesPhysical Review Research, 2020
The superexchange theory predicts dominant antiferromagnetic kinetic interaction when the orbitals accommodating magnetic electrons are covalently bonded through diamagnetic bridging atoms or groups.
Zhishuo Huang   +5 more
doaj   +1 more source

S=1 Antiferromagnetic Heisenberg Spin Chain with Alternating Interaction [PDF]

open access: yes, 2010
application/pdfThe S=1 antiferromagnetic Heisenberg spin chain with alternating interaction is analyzed. Two phases are found. It is shown that the two phases are distinguished with respect to the string correlations.紀要類(bulletin)289770 bytesdepartmental
Hatano, Naomichi   +3 more
core   +1 more source

Synthesis, Crystal Structures, and Magnetic Properties of Mixed-Valent Tetranuclear Complexes with Y-Shaped MnII2MnIII2 Core

open access: yesMagnetochemistry, 2019
Tetranuclear MnII2MnIII2 complexes with 1,3-bis(5-bromo-3-metoxysalicylidenaminomethyl)-2-propanol (H3bmsap) and 1,3-bis(5-chloro-3-methoxysalicylidenaminomethyl)-2-propanol (H3cmsap), [Mn4(bmsap)2(CH3CO2)3(CH3O)] (3) and [Mn4(cmsap)2(CH3CO2)3(CH3O)] (4),
Masahiro Mikuriya   +6 more
doaj   +1 more source

Coexistence and Interaction of Spinons and Magnons in an Antiferromagnet with Alternating Antiferromagnetic and Ferromagnetic Quantum Spin Chains [PDF]

open access: yesPhysical Review Letters, 2020
In conventional quasi-one-dimensional antiferromagnets with quantum spins, magnetic excitations are carried by either magnons or spinons in different energy regimes: they do not coexist independently, nor could they interact with each other. In this Letter, by combining inelastic neutron scattering, quantum Monte Carlo simulations and Random Phase ...
H. Zhang   +12 more
openaire   +3 more sources

Spin susceptibility and superexchange interaction in the antiferromagnet CuO [PDF]

open access: yesPhysical Review B, 2003
7 pages including 4 tables and 9 ...
Shimizu, T.   +5 more
openaire   +2 more sources

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