X-ray surface reflection and transmission topography of magnetic domain walls in Czochralski-grown nickel single crystals

1977 ◽  
Vol 12 (2) ◽  
pp. 353-357 ◽  
Author(s):  
Masao Kuriyama ◽  
William J. Boettinger ◽  
Harold E. Burdette
Keyword(s):  
Single Crystals ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Reflection And Transmission ◽  
X Ray ◽  
Surface Reflection ◽  
Magnetic Domain Walls

Theoretical and Experimental Study of the Diffraction Contrast on Magnetic Domain Walls

1982 ◽  
Vol 37 (5) ◽  
pp. 419-426 ◽  
Author(s):  
M. Polcarová ◽  
J. Brádler
Keyword(s):  
Experimental Study ◽  
Single Crystals ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Dynamical Theory ◽  
X Ray Diffraction ◽  
X Ray ◽  
Magnetic Domain Walls ◽  
Integrated Intensities ◽  
Good Agreement

Dynamical theory of the X-ray diffraction on a crystal containing misfit boundary was applied to the interpretation of the contrast observed in X-ray topographs on 90° magnetic domain walls in single crystals of an Fe-Si alloy. The integrated intensities were computed for several cases corresponding to the actual conditions of experiments. Good agreement of theoretical and experi­mental results was obtained.

Observations of oblique magnetic domain walls in nickel single crystals by X-ray topography

1977 ◽  
Vol 36 (4) ◽  
pp. 763-776 ◽  
Author(s):  
W. J. Boettinger ◽  
H. E. Burdette ◽  
M. Kuriyama
Keyword(s):  
Single Crystals ◽  
Domain Walls ◽  
Magnetic Domain ◽  
X Ray ◽  
Magnetic Domain Walls

Synthesis and Characterization of BiFeO3 Ceramic by Simple and Novel Methods

2016 ◽  
Vol 35 (6) ◽  
pp. 551-557 ◽  
Author(s):  
Omid Amiri ◽  
Mohammad Reza Mozdianfar ◽  
Mahmoud Vahid ◽  
Masoud Salavati-Niasari ◽  
Sousan Gholamrezaei
Keyword(s):  
Magnetic Properties ◽  
Domain Walls ◽  
Magnetic Domain ◽  
X Ray Diffraction ◽  
X Ray ◽  
Size Dependent ◽  
Magnetic Domain Walls ◽  
Magnetization Orientation ◽  
Thermal Stability Of

AbstractBiFeO3 nanopowders with new morphology have been synthesized by different methods. X-ray diffraction analysis, scanning electron microscopy, Fourier transform infrared and vibrating sample magnetometer were carried out at room temperature to study the structural and magnetic properties of as-synthesized products. VSM was utilized to measure the size-dependent magnetic behaviors of the as-prepared nanoparticles. Results show that the method has strong effect on the purity of the products. BFO synthesized by third method was pure. Crystallite size has a great effect on the magnetic properties. According to these results the nanoparticle diameter is smaller than the critical single-domain diameter, avoiding the configuration of magnetic domain walls decreases the magnetization. Even though the diameter of particle becomes even smaller, the thermal stability of the magnetization orientation decreases.

Crystal Imperfections and Magnetic Domain Walls in Thick Czochralski-Grown Nickel Single Crystals

1976 ◽  
Vol 20 ◽  
pp. 245-257 ◽  
Author(s):  
Masao Kuriyama ◽  
William J. Boettinger ◽  
Harold E. Burdette
Keyword(s):  
Single Crystals ◽  
Domain Walls ◽  
Magnetic Domain ◽  
Czochralski Method ◽  
Growth Conditions ◽  
Semiconducting Materials ◽  
Crystal Imperfections ◽  
Magnetic Domain Walls ◽  
Diffraction Effects ◽  
The Relationship

To study the relationship between crystal growth conditions and resultant crystalline perfection, large nickel single crystals more than 12 cm long and 2 to 3 cm in diameter have been grown from the melt by the Czochralski method. Unlike semiconducting materials, one cannot easily thin metal crystals, without straining them, for the purpose of applying ordinary Lang topography with μL∼l where kinematical scattering in imperfect crystals is a good approximation. This situation with metal crystals necessitates the use of dynamical diffraction effects in imperfect crystals to permit sample crystals to be thick enough to demonstrate their imperfections as in the bulk.

scholarly journals Ultrafast time-evolution of chiral Néel magnetic domain walls probed by circular dichroism in x-ray resonant magnetic scattering.

2021 ◽  
Author(s):  
Cyril Lévéillé ◽  
Erick Burgos-Parra ◽  
Yanis Sassi ◽  
Fernando Ajejas ◽  
Valentin Chardonnet ◽  
...  
Keyword(s):  
Circular Dichroism ◽  
Optical Pumping ◽  
Domain Walls ◽  
Spin Current ◽  
Magnetic Domain ◽  
Magnetic Interactions ◽  
Magnetic Scattering ◽  
X Ray ◽  
Magnetic Domain Walls ◽  
Circular Dichroïsm

Abstract Non-collinear spin textures in ferromagnetic ultrathin films are attracting a renewed interest fueled by possible fine engineering of several magnetic interactions, notably the interfacial Dzyaloshinskii-Moriya interaction. This allows the stabilization of complex chiral spin textures such as chiral magnetic domain walls (DWs), spin spirals, and magnetic skyrmions. We report here on the ultrafast behavior of chiral DWs after optical pumping in perpendicularly magnetized asymmetric multilayers, probed using time-resolved circular dichroism in x-ray resonant magnetic scattering (CD-XRMS). We observe a picosecond transient reduction of the CD-XRMS, which is attributed to the spin current-induced coherent and incoherent torques within the continuously dependent spin texture of the DWs. We argue that a specific demagnetization of the inner structure of the DW induces a flow of spins from the interior of the neighboring magnetic domains. We identify this time-varying change of the DW texture shortly after the laser pulse as a distortion of the homochiral Néel shape toward a transient mixed Bloch-Néel-Bloch texture along a direction transverse to the DW.

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