Modifications of the Domain Structure of Barium Ferrite Single Crystals Under the Influence of a Magnetic Field

1964 ◽  
Vol 6 (1) ◽  
pp. 141-150 ◽  
Author(s):  
M. Rosenberg ◽  
C. Tanasoiu ◽  
C. Rusu
Keyword(s):  
Magnetic Field ◽  
Single Crystals ◽  
Domain Structure ◽  
Barium Ferrite

scholarly journals Modeling of magneto-conductivity of bismuth selenide: a topological insulator

2021 ◽  
Vol 3 (4) ◽  
Author(s):  
Yogesh Kumar ◽  
Rabia Sultana ◽  
Prince Sharma ◽  
V. P. S. Awana
Keyword(s):  
Magnetic Field ◽  
Magnetic Fields ◽  
Single Crystal ◽  
Single Crystals ◽  
X Ray Diffraction ◽  
Field Range ◽  
X Ray ◽  
Bulk Carriers ◽  
Different Temperatures

AbstractWe report the magneto-conductivity analysis of Bi2Se3 single crystal at different temperatures in a magnetic field range of ± 14 T. The single crystals are grown by the self-flux method and characterized through X-ray diffraction, Scanning Electron Microscopy, and Raman Spectroscopy. The single crystals show magnetoresistance (MR%) of around 380% at a magnetic field of 14 T and a temperature of 5 K. The Hikami–Larkin–Nagaoka (HLN) equation has been used to fit the magneto-conductivity (MC) data. However, the HLN fitted curve deviates at higher magnetic fields above 1 T, suggesting that the role of surface-driven conductivity suppresses with an increasing magnetic field. This article proposes a speculative model comprising of surface-driven HLN and added quantum diffusive and bulk carriers-driven classical terms. The model successfully explains the MC of the Bi2Se3 single crystal at various temperatures (5–200 K) and applied magnetic fields (up to 14 T).

Investigation of the domain structure and hierarchy in potassium–sodium niobate lead-free piezoelectric single crystals

RSC Advances ◽  
2016 ◽  
Vol 6 (54) ◽  
pp. 49060-49067 ◽  
Author(s):  
Micka Bah ◽  
Natalya Alyabyeva ◽  
Richard Retoux ◽  
Fabien Giovannelli ◽  
Mustapha Zaghrioui ◽  
...  
Keyword(s):  
Single Crystals ◽  
Domain Structure ◽  
Lead Free ◽  
Nanometer Scale ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Length Scales ◽  
Potassium Sodium ◽  
Domain Structures ◽  
Self Organized

We reported self-organized and hierarchized domain structures on various length scales ranging from micrometer to nanometer scale in K0.5Na0.5NbO3 crystals.

Domain structure of iron single crystals grown on Si(111) investigated by magnetic force microscopy (abstract)

1996 ◽  
Vol 79 (8) ◽  
pp. 6447 ◽  
Author(s):  
S. Foss ◽  
R. Proksch ◽  
K. Moloni ◽  
E. D. Dahlberg ◽  
Y. Cheng
Keyword(s):  
Single Crystals ◽  
Domain Structure ◽  
Magnetic Force Microscopy ◽  
Magnetic Force ◽  
Force Microscopy

scholarly journals The Problem of Texture in Mössbauer Spectroscopy

Texture ◽  
1974 ◽  
Vol 1 (4) ◽  
pp. 259-263 ◽  
Author(s):  
E. Kreber ◽  
U. Gonser
Keyword(s):  
Mössbauer Spectroscopy ◽  
Single Crystals ◽  
Barium Ferrite ◽  
Mossbauer Spectroscopy ◽  
Polycrystalline Material ◽  
Random Orientation ◽  
Line Intensities ◽  
Mößbauer Spectroscopy ◽  
Texture Information ◽  
Relative Line

In Mössbauer spectroscopy it is desirable to work with single crystals or with polycrystalline material of random orientation. The actual, most occuring, case of preferred orientation (texture) and its influence on the relative line intensities of hyperfine split Mössbauer spectra is analysed. Texture information which can be obtained from such an analysis is demonstrated with variously prepared barium ferrite (Ba Fe12 O19) samples.

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