Results 21 to 30 of about 65,692 (330)

The Experimentalist's Guide to the Cycloid, or Noncollinear Antiferromagnetism in Epitaxial BiFeO3

open access: yesAdvances in Materials, 2020
Bismuth ferrite (BiFeO3) is one of the most widely studied multiferroics. The coexistence of ferroelectricity and antiferromagnetism in this compound has driven an intense search for electric‐field control of the magnetic order.
Stuart R. Burns   +4 more
semanticscholar   +1 more source

Triangular antiferromagnetism on the honeycomb lattice of twisted bilayer graphene [PDF]

open access: yesPhysical review B, 2018
We present the electronic band structures of states with the same symmetry as the three-sublattice planar antiferromagnetic order of the triangular lattice.
A. Thomson   +3 more
semanticscholar   +1 more source

High-pressure synthesis and magnetic properties of tetragonal R2BaCuO5 (R = Sm and Eu)

open access: yesFrontiers in Chemistry, 2023
We report the experimental discovery of a new structural phase of well-known orthorhombic R2BaCuO5 (R = Sm and Eu), exhibiting a tetragonal crystal structure with space group P4∕mbm.
Swarnamayee Mishra   +4 more
doaj   +1 more source

Anomalous Antiferromagnetism in Metallic RuO_{2} Determined by Resonant X-ray Scattering. [PDF]

open access: yesPhysical Review Letters, 2018
We studied the magnetic ordering of thin films and bulk crystals of rutile RuO_{2} using resonant x-ray scattering across the Ru L_{2} absorption edge. Combining polarization analysis and azimuthal angle dependence of the magnetic Bragg signal, we have ...
Zheng Zhu   +10 more
semanticscholar   +1 more source

Coexistence of superconductivity and antiferromagnetism in the Hubbard model for cuprates [PDF]

open access: yesPhysical review B, 2018
Antiferromagnetism and $d$-wave superconductivity are the most important competing ground-state phases of cuprate superconductors. Using cellular dynamical mean-field theory for the Hubbard model, we revisit the question of the coexistence and ...
A. Foley   +3 more
semanticscholar   +1 more source

Field Induced Multiple Reentrant Quantum Phase Transitions in Randomly Dimerized Antiferromagnetic S=1/2 Heisenberg Chains [PDF]

open access: yes, 2006
The multiple reentrant quantum phase transitions in the $S=1/2$ antiferromagnetic Heisenberg chains with random bond alternation in the magnetic field are investigated by the density matrix renormalization group method combined with the interchain mean ...
Cabra D. C.   +16 more
core   +4 more sources

Itinerant Antiferromagnetism in RuO_{2}. [PDF]

open access: yesPhysical Review Letters, 2016
Bulk rutile RuO_{2} has long been considered a Pauli paramagnet. Here we report that RuO_{2} exhibits a hitherto undetected lattice distortion below approximately 900 K. The distortion is accompanied by antiferromagnetic order up to at least 300 K with a
T. Berlijn   +11 more
semanticscholar   +1 more source

The frustration of being odd: how boundary conditions can destroy local order

open access: yesNew Journal of Physics, 2020
A central tenant in the classification of phases is that boundary conditions cannot affect the bulk properties of a system. In this work, we show striking, yet puzzling, evidence of a clear violation of this assumption. We use the prototypical example of
Vanja Marić   +3 more
doaj   +1 more source

Antiferromagnetism Emerging in a Ferromagnet with Gain. [PDF]

open access: yesPhysical Review Letters, 2018
We present a theoretical mapping to show that a ferromagnet with gain (loss) is equivalent to an antiferromagnet with an equal amount of loss (gain). Our findings indicate a novel first-order ferromagnet-antiferromagnet phase transition by tuning the ...
Huanhuan Yang   +4 more
semanticscholar   +1 more source

Cluster:Theoretical Study on the Paramagnetic Properties of Cluster CrPS4

open access: yesJournal of Harbin University of Science and Technology, 2023
In order to explore the paramagnetic properties of CrPS4 at a temperature of 298.15K, and to contribute theoretical basis for subsequent research and applications. The article is based on density functional theory, using B3LYP functional and def2-tzvp
LIU Li′e   +5 more
doaj   +1 more source

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