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Related papers: High-Frequency Electromagnon in GdMnO3

200 papers

The in-plane dynamics of ferrimagnetic Co/Gd multilayers are investigated by means of ferromagnetic resonance, magneto-optical Kerr effect and SQUID magnetometry. The power absorbed from these multilayers is strongly temperature dependent.…

Materials Science · Physics 2010-03-01 S. Demirtas , I. Harward , R. E. Camley , Z. Celinski , M. R. Hossu , A. R. Koymen , C. Yu , M. J. Pechan

Resonant x-ray scattering is performed near the Mn K-absorption edge for an epitaxial thin film of BiMnO3. The azimuthal angle dependence of the resonant (003) peak (in monoclinic indices) is measured with different photon polarizations;…

Materials Science · Physics 2009-11-11 C. -H. Yang , J. Koo , C. Song , T. Y. Koo , K. -B. Lee , Y. H. Jeong

The title compound is investigated by specific heat measurements in the normal and superconducting state supplemented by upper critical field transport, susceptibility and magnetization measurements. From a detailed analysis including also…

We report on bifurcations effect mediated by the electron-phonon coupling in a concentrated rare-earth-containing antiferromagnet, observed in the spectra of coupled $4f$-electron-phonon modes under the influence of an external magnetic…

The magnetic excitations in ferromagnetic SrRuO$_3$ were studied by inelastic neutron scattering combining experiments on triple-axis and time-of-flight spectrometers with and without polarization analysis. A quadratic spin-wave dispersion…

Strongly Correlated Electrons · Physics 2023-06-07 K. Jenni , S. Kunkemöller , A. Tewari , R. A. Ewings , Y. Sidis , A. Schneidewind , P. Steffens , A. A. Nugroho , M. Braden

We present reflectance measurements in the infrared region on a single crystal the rare earth scandate DyScO3. Measurements performed between room temperature and 10 K allow to determine the frequency of the infrared-active phonons, never…

Materials Science · Physics 2010-11-03 L. Baldassarre , A. Perucchi , S. Lupi , P. Dore

This letter proposes a new method based on ultrafast high energy electron radiography to diagnose transient electromagnetic field. For the traditional methods, large scattering from matter will increase the uncertainty of measurement, but…

Accelerator Physics · Physics 2022-02-09 J. H. Xiao , Y. C. Du , H. Q. Li , Y. T. Zhao , L. Sheng

We construct a low-temperature microwave waveguide interferometer for measuring high-frequency properties of two-dimensional electron gases (2DEGs). Coupled plasmon-cyclotron resonance (PCR) spectra are used to extract effective mass, bulk…

Mesoscale and Nanoscale Physics · Physics 2017-04-26 Jie Zhang , Ruiyuan Liu , Rui-Rui Du , L. N. Pfeiffer , K. W. West

We report experimental and theoretical studies on the magnetoelastic interactions in MnPS$_3$. Raman scattering response measured as a function of temperature shows a blue shift of the Raman active modes at 120.2 and 155.1 cm$^{-1}$, when…

High harmonic generation from Pr$_{0.8}$Ca$_{0.2}$MnO$_{3}$ was investigated across a high-temperature paramagnetic phase and a low-temperature ferromagnetic phase. As the temperature decreases, the harmonic intensity gradually increases in…

Strongly Correlated Electrons · Physics 2025-01-27 A. Nakano , K. Uchida , Y. Tomioka , M. Takaya , Y. Okimoto , K. Tanaka

Relative $K$ x-ray intensities of $Mn$ in $Mn$, $MnO_{2}$, $LaMnO_{3}$ and $La_{0.7}B_{0.3}MnO_{3}$ ($B$ = $Ca$, $Sr$, and $Ce$) systems have been measured following excitation by 59.54 keV $\gamma$-rays from a 200 mCi $^{241}$Am…

Materials Science · Physics 2009-10-31 S. Raj , H. C. Padhi , P. Rayachaudhury , A. K. Nigam , R. Pinto , M. Polasik , F. Pawłowski , D. K. Basa

Far infrared magneto-transmission spectroscopy has been used to probe "relativistic" fermions in highly oriented pyrolytic and natural graphite. Nearly identical transmission spectra of those two materials are obtained, giving the signature…

Other Condensed Matter · Physics 2008-10-23 M. Orlita , C. Faugeras , G. Martinez , D. K. Maude , M. L. Sadowski , J. M. Schneider , M. Potemski

We have investigated dielectric properties in Mott insulators GdMnO$_{3}$ and TbMnO$_{3}$ under magnetic fields and external quasihydrostatic pressures. In the case of GdMnO$_{3}$, thermal hysteresis for dielectric constant $\epsilon$ and…

Strongly Correlated Electrons · Physics 2009-11-10 K. Noda , S. Nakamura , J. Nagayama , H. Kuwahara

The possibility of a solid state electron electric dipole moment (EDM) experiment based on Gadolinium Iron Garnet (GdIG) is investigated. GdIG appears to exhibit superparamagnetism and this effect can be used to enhance the…

Atomic Physics · Physics 2007-05-23 Steve K. Lamoreaux

The low energy dynamical properties of the multiferroic hexagonal perovskite ErMnO3 have been studied by inelastic neutron scattering as well as terahertz and far infrared spectroscopies on synchrotron source. From these complementary…

Low magnetic damping and high group velocity of spin waves (SWs) or magnons are two crucial parameters for functional magnonic devices. Magnonics research on signal processing and wave-based computation at GHz frequencies focussed on the…

Materials Science · Physics 2023-07-06 Mohammad Hamdi , Ferdinand Posva , Dirk Grundler

Hexagonal YMnO_3 with space group P63cm is one of the rare examples of multiferroic materials that exhibit co-dependence of a robust ferroelectric phase along with antiferromagnetic ordering. This is primarily ascribed to tilting of the…

Strongly Correlated Electrons · Physics 2010-05-25 A. K. Singh , S. D. Kaushik , V. Siruguri , S. Patnaik

Multiferroic hexagonal h-Lu0.6Sc0.4FeO3 single crystals with non-collinear spins were studied using the THz and Raman scattering spectroscopies and ellipsometry. Antiferromagnetic resonances, or magnons, were found at about 0.85 THz and 1.2…

Other Condensed Matter · Physics 2025-07-31 V. A. Martinez , A. A. Sirenko , L. Bugnon , P. Marsik , C. Bernhard , Qing Zhang , G. L. Pascut , F. Lyzwa , Z. Liu , K. Du , S. -W. Cheong

Magnetic excitations in van der Waals (vdW) materials, especially in the two-dimensional (2D) limit, are an exciting research topic from both the fundamental and applied perspectives. Using temperature-dependent, magneto-Raman spectroscopy,…

We have measured the optical conductivity of single crystal LuMnO3 from 10 to 45000 cm-1 at temperatures between 4 and 300 K. A symmetry allowed on-site Mn $d$-$d$ transition near 1.7 eV is observed to blue shift (~0.1 eV) in the…

Strongly Correlated Electrons · Physics 2009-11-07 A. B. Souchkov , J. R. Simpson , H. D. Drew , M. Quijada , H. Ishibashi , N. Hur , J. S. Ahn , S. W. Cheong , A. J. Millis