Theory of antiferromagnetic resonance

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August undefined, 2024

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 … 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 …

Magnetochemistry Free Full-Text Theory of Antiferromagnet …

Webb27 okt. 2024 · Antiferromagnetic resonance modes at zero field In the following, we will focus our study on the dynamic characteristics of region-I. First, in the absence of … WebbWe report high-resolution optical absorption measurements between 1.5 and 10 cm–1 of the antiferromagnetic (AFM) resonance transition in α-Fe2O3. The AFM transition is … how many gigabytes is 400 megabytes

Antiferromagnetism in metals Proceedings of the Royal Society …

Webb27 sep. 2024 · When the external bias magnetic field is small enough to ensure the magnetizations of two ferromagnetic sublayers remain antiparallel alignments, we find … WebbThe 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. 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 … houzcart

Transverse susceptibility and resonance absorption of an anti ...

Terahertz light–driven coupling of antiferromagnetic spins

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... Webb21 okt. 2024 · We have measured antiferromagnetic resonance (AFMR) frequency-field dependences for aluminum–manganese garnet Mn3Al2Ge3O12 at frequencies from 1 to … how many gigabytes is 300 mbAntiferromagnetic 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… how many gigabytes is 800 megabytes

"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

WebbAmong a variety of antiferromagnets, the synthetic antiferromagnet (SAF) is a promising candidate for high-speed spintronic devices design. In this paper, micromagnetic …

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Webband 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 … Webb9 juni 2004 · 1. A general theory of antiferromagnetic resonance was developed by T. Nagamiya (1951), by C. Kittel (1951), and by F. Keffer and C. Kittel (1952). The theory of antiferromagnetic resonance in CuCl 2 2 H 2 O was discussed by T. Nagamiya (1954) and (1956), and by K. Yosida (1952) and J. Ubbink (1953). Google Scholar T. Nagamiya, …

Webbpresent a quantum theory of magnons for these materials and apply the results to two important AF insulators, MnF 2 and NiO. Finally, we introduce the concept of … 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 …

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. 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 …

Webb1 General theory of antiferromagnetic resonance was developed by T.Nagamiya (1951), C.Kittel (1951) and F.Keffer and C.Kittel (1952) Theory of antiferromagnetic resonance …

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 … houze advanced building scienceWebbTheory. The dependence of the resistivity on temperature , including the Kondo effect, is written as = + + ⁡ +,where is the residual resistivity, the term shows the contribution from the Fermi liquid properties, and the term is … houz cafe worldmarkWebb24 juni 2004 · The reversal speed of the ferromagnet is determined by a precession of the ferromagnetic spins in the strong interfacial exchange field and does not require any other field. This principle could be... how many gigabytes is 256 mbWebb10 apr. 2024 · Download PDF Abstract: We study the magneto-optical Kerr effect (MOKE) of the two-dimensional heterostructure CrI3/In2Se3/CrI3 by using density functional theory calculations and symmetry analysis. The spontaneous polarization in the In2Se3 ferroelectric layer and the antiferromagnetic ordering in CrI3 layers break the mirror … houz creative mediaWebbTHEORY OF ANTIFERROMAGNETIC RESONANCE IN METALS M. I. KAGANOV and R. P. YANKELEVICH Physico-technical Institute, Academy of Sciences, Ukrainian S.S.R. … houz cafeWebbNeutron diffraction studies of chromium and manganese by Shull & Wilkinson have disclosed the existence of a partial antiferromagnetic ordering in these metals, … how many gigabytes is 5000 megabytesWebb15 maj 1951 · Theory of Antiferromagnetic Resonance. C. Kittel. Phys. Rev. 82, 565 – Published 15 May 1951. More. PDF Export Citation. houze and associates lagrange