scholarly journals Investigation of the ground state domain structure transition on magnetite (Fe3O4)

2018 ◽  
Author(s):  
A. Yani ◽  
C. Kurniawan ◽  
D. Djuhana
Keyword(s):  
Domain Structure ◽  
Ground State ◽  
Structure Transition ◽  
Magnetite Fe3o4

Domain structure transition from two to three dimensions in tensile strained (100)/(001)-oriented epitaxial tetragonal PZT film

2018 ◽  
Vol 113 (13) ◽  
pp. 132905
Author(s):  
Daichi Ichinose ◽  
Takao Shimizu ◽  
Osami Sakata ◽  
Tomoaki Yamada ◽  
Hiroshi Funakubo
Keyword(s):  
Domain Structure ◽  
Three Dimensions ◽  
Structure Transition ◽  
Pzt Film

scholarly journals Absence of stable collinear configurations in Ni(001) ultrathin films: Canted domain structure as ground state

2002 ◽  
Vol 65 (21) ◽  
Author(s):  
G. Gubbiotti ◽  
G. Carlotti ◽  
M. G. Pini ◽  
P. Politi ◽  
A. Rettori ◽  
...  
Keyword(s):  
Domain Structure ◽  
Ground State ◽  
Ultrathin Films

Magnetic Structure of Nanowires and Magnetostatic Interaction

2010 ◽  
Vol 168-169 ◽  
pp. 269-272 ◽  
Author(s):  
A.A. Ivanov ◽  
V.A. Orlov ◽  
N.N. Podolsky
Keyword(s):  
Domain Wall ◽  
Numerical Simulations ◽  
Magnetic Structure ◽  
Domain Structure ◽  
Ground State ◽  
Exchange Coupling ◽  
Anisotropy Axis ◽  
Induced Anisotropy ◽  
Magnetostatic Interaction ◽  
Stable Domain

The ground state magnetization of nanowires built of ferromagnetic crystallites is considered taking into account the magnetostatic interaction. The criterion of formation of domains is found. The thickness of a domain wall is calculated analytically and the results are compared with the numerical simulations. We show that when the exchange coupling between crystallites is absent its role is played by magnetostatics that ensures the existence of stable domain structure. The direction of the induced anisotropy axis is shown to be determined by the shape of crystallites.

Interchain Alignments and Ground State in Organic Ferromagnets

1998 ◽  
Vol 12 (28) ◽  
pp. 1167-1174
Author(s):  
W. Z. Wang ◽  
K. L. Yao ◽  
H. Q. Lin
Keyword(s):  
Spin Density ◽  
Ground State ◽  
Main Chain ◽  
Phonon Coupling ◽  
Structure Transition ◽  
Interchain Coupling ◽  
Ferromagnetic Structure ◽  
Phase Alignment ◽  
Electron Phonon Coupling ◽  
Organic Ferromagnets

Two kinds of alignments of two neighboring π-conjugated organic ferromagnetic chains are studied by considering the itinerary of electrons, electron–phonon coupling, the Hubbard repulsion and the interchain coupling. It is shown that the out-of-phase alignment is a more stable ferromagnetic structure than in-phase alignment. For out-of-phase alignment, there is a structure transition at a critical interchain coupling, at which the dimerizations of two chains have the same size and reverse sign. Interchain coupling results in transfer of spin density between each main chain and the side radicals.

Ground State and Transport Property in Superconductors with Artificial Pinning Arrays

2011 ◽  
Vol 306-307 ◽  
pp. 398-403
Author(s):  
Qing Bao Ren ◽  
Zhen Chun Zhou ◽  
Jun Zheng ◽  
Meng Bo Luo
Keyword(s):  
Transport Property ◽  
Ground State ◽  
Vortex Structures ◽  
Two Dimensional ◽  
Force Curve ◽  
Ground Structure ◽  
Vortex System ◽  
Structure Transition ◽  
Matching Field ◽  
Pinning Arrays

The dynamics of a two-dimensional vortex system in superconductors with periodic artificial columnar pinning is studied. The ground state at field B = 3Bf can be either anisotropic or isotropic, dependent on pinning strength and size, here Bf is the matching field where the number of vortices equals that of pins. The transport curves are dependent on the ground vortex structures and anisotropic ground structure may result in anisotropic velocity-force curve. Results indicate that the ground structure can be detected from the transport property. We also discover that a jump in velocity-force curve accompanies a structure transition.

The M1 ground state fine structure transition in Ag-like Yb

2014 ◽  
Vol 47 (18) ◽  
pp. 185004 ◽  
Author(s):  
R Zhao ◽  
J Grumer ◽  
W Li ◽  
J Xiao ◽  
T Brage ◽  
...  
Keyword(s):  
Fine Structure ◽  
Ground State ◽  
Structure Transition

scholarly journals The Submillimeter Wave Astronomy Satellite

1990 ◽  
Vol 123 ◽  
pp. 251-251 ◽  
Author(s):  
G.J. Melnick
Keyword(s):  
Fine Structure ◽  
Chemical Composition ◽  
Ground State ◽  
Molecular Clouds ◽  
Large Scale ◽  
Rotational Transition ◽  
Submillimeter Wave ◽  
Important Species ◽  
Structure Transition ◽  
Large Scale Survey

AbstractThe Submillimeter Wave Astronomy Satellite (SWAS) is a NASA Small-Explorer Class experiment whose objective is to study both the chemical composition and the thermal balance in dense (NH2 > 103 cm−3) molecular clouds and, by observing many clouds throughout our galaxy, relate these conditions to the processes of star formation. To conduct this study SWAS will be capable of carrying out both pointed and scanning observations simultaneously in the lines of four important species: (1) the H2O (110–101) 556.963 GHz ground-state ortho transition, (2) the O2 (3,3–1,2) 487.249 GHz transition, (3) the CI (3P1 – 3P0) 492.162 GHz ground-state fine structure transition, and (4) the 13CO (J = 5–4) 550.926 GHz rotational transition. These atoms and molecules are predicted to be among the most abundant within molecular clouds and, because they possess low-lying transitions with energy differences (ΔE/k) between 15 and 30K (temperatures typical of many molecular clouds), these species are believed to be dominant coolants of the gas as it collapses to form stars and planets. A large-scale survey in these lines is virtually impossible from any platform within the atmosphere due to telluric absorption.

Domain structure transition in compressively strained (100)/(001) epitaxial tetragonal PZT film

2021 ◽  
Vol 129 (2) ◽  
pp. 024101
Author(s):  
Daichi Ichinose ◽  
Takao Shimizu ◽  
Osami Sakata ◽  
Tomoaki Yamada ◽  
Yoshitaka Ehara ◽  
...  
Keyword(s):  
Domain Structure ◽  
Structure Transition ◽  
Pzt Film
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