Theory of antiferromagnetic resonance

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August undefined, 2024

Webb25 feb. 2016 · This finding could be explained from the basic theory of antiferromagnetic resonance. The temperature evolution of the electromagnon, magnon and soft phonon modes is studied to trace the intrinsic features of these excitations. A connection with experiment is also made. Keywords: Multiferroics; electromagnons; molecular dynamics … Webb39. Ummarino GA. Multiband s± Eliashberg theory and temperature-dependent spin-resonance energy in iron pnictide superconductors. Phys Rev B. 2011; 83: 092508. 40. …

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WebbAfter giving a short review of Nagamiya-Yosida's theory of antiferromagnetic resonance, it is shown that this theory is equivalent to Gorter-Ubbink's at absolute zero, so far as the external field H employed in the former is replaced by H' defined by 2 {H_x}'=g_aH_x, etc. and the parallel and perpendicular susceptibilities are related with obser... Webb6 apr. 2016 · In a collinear antiferromagnet with easy-axis anisotropy, symmetry dictates that the spin wave modes must be doubly degenerate. Theses two modes, distinguished by their opposite polarization and... flor \u0026 associates insurance

Theory of Antiferromagnetic Resonance - NASA/ADS

Antiferromagnetic structures were first shown through neutron diffraction of transition metal oxides such as nickel, iron, and manganese oxides. The experiments, performed by Clifford Shull, gave the first results showing that magnetic dipoles could be oriented in an antiferromagnetic structure. Antiferromagnetic materials occur commonly among transition metal compounds, especially oxi… WebbUsing molecular field theory and a 2-sublattice model, the second-order susceptibility of an antiferromagnetic structure is derived. The resulting nonlinear electromagnetic wave … Webb27 sep. 2024 · Magnetization and susceptibility. The magnetic susceptibility, χ, of a solid depends on the ordering of spins. Paramagnetic, ferromagnetic, antiferromagnetic, and … greedfall change appearance

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Numeric calculation of antiferromagnetic resonance frequencies …

WebbAmong a variety of antiferromagnets, the synthetic antiferromagnet (SAF) is a promising candidate for high-speed spintronic devices design. In this paper, micromagnetic … WebbIn the last section we consider antiferromagnetic resonance. We find that the resonance frequency observed for MnO agrees rather better with the exchange interaction deduced … greedfall change appearance modWebbThe antiferromagnetic resonance spectrum of single-crystal Cr 2 O 3 has been mapped within the wavelength region from 12 mm to 2.8 mm and magnetic field intensities from 0 oersteds to 30 000 oersteds. The resonance frequencies were observed in this region in a temperature interval from about 17°C to 35°C, the Néel temperature, T N. greedfall champion of the arena

"WebbSince the middle of the 20th century, modes 3 and 4 have fallen beyond the focus of interest of researchers primarily because of the approximation of small deviations of the … " - Theory of antiferromagnetic resonance

Theory of antiferromagnetic resonance

Magnetochemistry Free Full-Text Theory of Antiferromagnet …

Webb29 maj 2024 · Antiferromagnetic resonance (AFMR) experiments on a well characterized single-crystal sample of MnF2 have been performed using a spectrometer with wide ranges of both frequency and magnetic ﬁeld. All the AFMR modes predicted from the … WebbTranscript of Theory of Antiferromagnetic Resonance. LETTE RS TO THE E D I TOR 565. zo. I4Jg IO-DIFFERENTIAL MOMENTUMDISTRI8UTION OF STOPPED MESONS. I. PIIIIN. I …

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Webb21 okt. 2024 · We have measured antiferromagnetic resonance (AFMR) frequency-field dependences for aluminum–manganese garnet Mn3Al2Ge3O12 at frequencies from 1 to … Webb12 feb. 2024 · In this work, we consider a theory of resonance detection of both linearly and circularly polarized electromagnetic (EM) signals via a spin-pumping mechanism in …

WebbNeutron diffraction studies of chromium and manganese by Shull & Wilkinson have disclosed the existence of a partial antiferromagnetic ordering in these metals, … Webb20 juli 2004 · Only one antiferromagnetic resonance frequency is obtained in the absence of magnetic field. In the presence of a magnetic field applied along the c axis the …

Webb12 apr. 2024 · First, the excitation of resonance is spatially uniform over the sample. Second, studies are performed at a fixed frequency, which eliminates the effects of the matching of the RF line. The experiments were performed using a 6-μm-thick disk YIG film 0.3 mm in diameter at a frequency of 9.26 GHz and room temperature. WebbFerromagnetic resonance, or FMR, is coupling between an electromagnetic wave and the magnetization of a medium through which it passes. This coupling induces a significant …

WebbThis video is for Msc physics students studying condensed matter physics. It contains basics of antiferromagnetism and full derivation of molecular field the...

WebbTHEORY OF ANTIFERROMAGNETIC RESONANCE IN METALS M. I. KAGANOV and R. P. YANKELEVICH Physico-technical Institute, Academy of Sciences, Ukrainian S.S.R. … flor\\u0027s fiasco ruby dixon pdfWebb27 sep. 2024 · 1. Introduction. Theories of antiferromagnetic resonance were macroscopically treated in Refs. [1– 3], and were microscopically developed using the spin-wave method in Refs.[4– 10].The anti-ferromagnetic resonance was also discussed using the method of the collective motion of spins in Ref. [], and was studied numerically using … flor\u0027s cleaningWebb15 jan. 1952 · A quantum-mechanical derivation of the resonance equations is carried out by the method developed by Van Vleck for ferromagnetic resonance; no new features are introduced by the quantum-mechanical calculation. Several factors contributing to the … flor\\u0027s cleaningWebb1 jan. 1977 · The results of antiferromagnetic resonance measurements in NaCrS 2 ( TN =17K) are compared with the theory developed for a collinear easy-plane antiferromagnet with anisotropy in the basal plane. Reasonable agreement is obtained. Some discrepancies are attributed to low-temperature in-plane distortions. flor\u0027s fiasco ruby dixon pdfWebb18 nov. 2024 · Antiferromagnetic Resonance Revisited: Dissipative Coupling without Dissipation. The antiferromagnet is a closed Hermitian system, we find that its … flor\u0027s cleaning fort myers flWebb15 maj 1951 · Theory of Antiferromagnetic Resonance. C. Kittel. Phys. Rev. 82, 565 – Published 15 May 1951. More. PDF Export Citation. flor\\u0027s fiasco ruby dixonWebband antiferromagnetic resonance (AFMR) was studied in them for the purpose of explaining the possible pecul iarities in AFMR resulting from the presence of a lay ered … flor\u0027s fiasco ruby dixon