Extinction of the long-range order on site diluted quantum two-dimensional antiferromagnet in Bose–Einstein condensation
Sign Up to like & getrecommendations! Published in 2019 at "Physica A: Statistical Mechanics and its Applications"
DOI: 10.1016/j.physa.2019.122208
Abstract: Abstract We study the two-dimensional Heisenberg antiferromagnet with ion single anisotropy in the square lattice in the presence of nonmagnetic impurities at T = 0 using the SU(3) Schwinger boson theory. In particular we discuss… read more here.
Keywords: antiferromagnet; site; range order; long range ... See more keywords
Electric field control of Néel spin–orbit torque in an antiferromagnet
Sign Up to like & getrecommendations! Published in 2019 at "Nature Materials"
DOI: 10.1038/s41563-019-0424-2
Abstract: Electric field control of spin–orbit torque in ferromagnets1 has been intensively pursued in spintronics to achieve efficient memory and computing devices with ultralow energy consumption. Compared with ferromagnets, antiferromagnets2,3 have huge potential in high-density information… read more here.
Keywords: electric field; orbit torque; spin orbit; antiferromagnet ... See more keywords
Localized magnetic non-uniformities in an antiferromagnet with a system of dislocations
Sign Up to like & getrecommendations! Published in 2019 at "Low Temperature Physics"
DOI: 10.1063/10.0000205
Abstract: In the crystal lattice of an antiferromagnet, dislocations are the origin of specific lines in the field of antiferromagnetic vector I, resembling disclinations in the field of the vector-director for nematic liquid crystals. A single… read more here.
Keywords: dislocation; spin; system dislocations; plane ... See more keywords
Spin-current dissipation in a thin-film bilayer ferromagnet/antiferromagnet
Sign Up to like & getrecommendations! Published in 2020 at "Low Temperature Physics"
DOI: 10.1063/10.0001547
Abstract: Ferromagnetic resonance in multilayer metal nanostructures containing an antiferromagnetic layer of variable thickness is studied. The contribution to the linewidth of the ferromagnetic resonance that is caused by spin-pumping current dissipation in an exchange-coupled antiferromagnetic/ferromagnetic… read more here.
Keywords: current dissipation; dissipation; bilayer; ferromagnet ... See more keywords
S=12 kagome Heisenberg antiferromagnet revisited
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review B"
DOI: 10.1103/physrevb.100.155142
Abstract: We examine the perennial quantum spin-liquid candidate $S=1/2$ Heisenberg antiferromagnet on the kagome lattice. Our study is based on achieving Lanczos diagonalization of the Hamiltonian on a $48$ site cluster in sectors with dimensions as… read more here.
Keywords: antiferromagnet; heisenberg antiferromagnet; antiferromagnet revisited; kagome heisenberg ... See more keywords
Atomistic origin of exchange anisotropy in noncollinear γ−IrMn3 –CoFe bilayers
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.102.140404
Abstract: Antiferromagnetic spintronic devices could offer ultrafast dynamics and a higher data density than conventional ferromagnetic devices. One of the challenges in designing such devices is the control and detection of the magnetization of the antiferromagnet… read more here.
Keywords: interface; exchange bias; exchange; irmn3 cofe ... See more keywords
Large negative magnetoresistance in the antiferromagnet BaMn2Bi2
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.125108
Abstract: A very large negative magnetoresistance (LNMR) is observed in the insulating regime of the antiferromagnet ${\mathrm{BaMn}}_{2}{\mathrm{Bi}}_{2}$ when a magnetic field is applied perpendicular to the direction of the sublattice magnetization. A high perpendicular magnetic field… read more here.
Keywords: antiferromagnet; field; large negative; mathrm ... See more keywords
Impact of anisotropy on antiferromagnet rotation in Heusler-type ferromagnet/antiferromagnet epitaxial bilayers
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.134413
Abstract: We report the magnetotransport properties of ferromagnet (FM)/antiferromagnet (AFM) Fe$_2$CrSi/Ru$_2$MnGe epitaxial bilayers using current-in-plane configurations. Above the critical thickness of the Ru$_2$MnGe layer to induce exchange bias, symmetric and asymmetric curves were observed in response… read more here.
Keywords: afm rotation; impact anisotropy; epitaxial bilayers; rotation ... See more keywords
Weak localization of magnons in a disordered two-dimensional antiferromagnet
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.020407
Abstract: We propose the weak localization of magnons in a disordered two-dimensional antiferromagnet. We derive the longitudinal thermal conductivity $\kappa_{xx}$ for magnons of a disordered Heisenberg antiferromagnet in the linear-response theory with the linear-spin-wave approximation. We… read more here.
Keywords: magnons disordered; weak localization; localization magnons; antiferromagnet ... See more keywords
Manifolds of magnetic ordered states and excitations in the almost Heisenberg pyrochlore antiferromagnet MgCr2O4
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.134430
Abstract: In spinels ACr2O4 (A=Mg, Zn), realization of the classical pyrochlore Heisenberg antiferromagnet model is complicated by a strong spin-lattice coupling: the extensive degeneracy of the ground state is lifted by a magneto-structural transition at TN… read more here.
Keywords: states excitations; manifolds magnetic; spin; magnetic ordered ... See more keywords
Degenerate ground state in the classical pyrochlore antiferromagnet Na3Mn(CO3)2Cl
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.98.144426
Abstract: In an ideal classical pyrochlore antiferromagnet without perturbations, an infinite degeneracy at a ground state leads to absence of a magnetic order and spin-glass transition. Here we present Na$_3$Mn(CO$_3$)$_2$Cl as a new candidate compound where… read more here.
Keywords: pyrochlore; ground state; classical pyrochlore; antiferromagnet ... See more keywords