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    Article

    Approximate theory of FMR and AR in weakly conducting ferromagnetic bulk metals

    D. Fraitová in Czechoslovak Journal of Physics B (1983)

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    Article

    Ferromagnetic resonance in weakly electrically conducting ferromagnets

    For low electrically conducting anisotropic ferromagnetic metals an analytical FMR theory was deduced, which considers the influence of dielectric permittivity (the displacement current in Maxwell equations); ...

    Ngoc Chan, D. Fraitová in Czechoslovak Journal of Physics B (1983)

  3. No Access

    Article

    An antiresonance theory in weakly electrically conducting ferromagnets

    A macroscopic theory of the antiresonance effect (AR) was investigated in weakly electrically conducting ferromagnetic metals in the parallel configuration by solving the Maxwell equations (including the displ...

    Ngoc Chan, D. Fraitová in Czechoslovak Journal of Physics B (1982)

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    Article

    A simple expression for the microwave surface impedance in the ferromagnetic antiresonance region

    There is derived a simple analytical expression for the real component of the microwave surface impedance in the ferromagnetic antiresonance region at the external field parallel to the ferromagnetic metal sam...

    L. Půst, D. Fraitová in Czechoslovak Journal of Physics B (1982)

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    Article

    Theory of ferromagnetic antiresonance in parallel configuration in metals

    A solution of Maxwell equations for the propagation of electromagnetic waves in a metallic ferromagnet is presented for the region of ferromagnetic antiresonance; the magnetization vector motion is described b...

    D. Fraitová in Czechoslovak Journal of Physics B (1980)

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    Article

    Measurement of magnetic field intensity by means of NMR. I. Accuracy of measurement

    The influence of various parameters (e.g. polarization and intensity of high frequency field, NMR relaxation times, signal to noise ratio of the measuring apparatus) on the determination of NMR resonance point...

    Z. Frait, D. Fraitová in Czechoslovak Journal of Physics B (1977)

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    Article

    On the existence of resonance surface modes in ferromagnetic metals

    D. Fraitová, M. Kolářová in Czechoslovak Journal of Physics B (1976)

  8. No Access

    Article

    FMR in surface oxidized iron single crystals

    Ferromagnetic resonance absorption has been observed at room temperature in iron single crystals of whisker type (grown along [100] direction). The surface of the samples has been oxidized in air at 760 Torr a...

    Z. Frait, D. Fraitová, R. Gemperle in Czechoslovak Journal of Physics B (1975)

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    Article

    Influence of surface anisotropy on ferromagnetic resonance in bulk metals

    D. Fraitová in Czechoslovak Journal of Physics B (1974)

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    Article

    The relaxation of resonance spin waves by the s-d exchange in ferromagnetic iron

    D. Fraitová in Czechoslovak Journal of Physics B (1973)

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    Article

    Shift of the proton NMR field in aqueous solutions of paramagnetic ions

    In the paper there is discussed the proton NMR field shift in aqueous solutions of transition metal ions, which has to be taken into account in exact measurements of the static magnetic field. Using the result...

    Z. Frait, D. Fraitová in Czechoslovak Journal of Physics B (1972)

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    Article

    On the problem of dam** of ferromagnetic spin waves by conduction electrons

    The life time of a resonance spin wave has been studied in ferromagnetic transition metals utilizing the theory of generalized Brown's motion. A basic assumption is the exchange interaction of 3d electrons wit...

    D. Fraitová, V. Dvořák in Czechoslovak Journal of Physics B (1972)

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    Article

    Ferromagnetic resonance in thin single crystal platelets of iron

    Ferromagnetic resonance measurements were performed in single crystals of α-iron in the form of thin platelets. These platelets were grown from the vapour phase; their thickness was several microns. The freque...

    Z. Frait, D. Fraitová, M. Kotrbová, Z. Hauptman in Czechoslovak Journal of Physics B (1966)

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    Article

    Normal vibrations of SrTiO3 lattice

    The model of polarizable ions was used to calculate the frequencies and amplitudes of normal transverse modes of vibration (forκ=0) of an SrTiO3 lattice and their temperature dependence due to the temperature dil...

    D. Fraitová, A. Zentková in Czechoslovak Journal of Physics (1963)

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    Article

    The influence op demagnetization, anisotropy and stress on the resonance condition of spin-wave resonance

    Spin-wave resonance equations of motion, based on Valenta's model of a thin film, are derived on the basis of quantum mechanics. We start out from the Hamiltonian including Zeeman, exchange and dipolar interac...

    D. Fraitová in Cechoslovackij fiziceskij zurnal B (1961)

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    Article

    On the theory of the ferromagnetic resonance of thin films

    D. Fraitová in Cechoslovackij fiziceskij zurnal B (1960)