Suppression of antiphase domain boundary formation in Ba0.5Sr0.5TiO3 films grown on vicinal MgO substrates

2004 ◽  
Vol 85 (14) ◽  
pp. 2905-2907 ◽  
Author(s):  
H. Zheng ◽  
L. Salamanca-Riba ◽  
R. Ramesh ◽  
H. Li
Keyword(s):  
Domain Boundary ◽  
Antiphase Domain ◽  
Boundary Formation

The Effect of Interfacial Contamination on Antiphase Domain Boundary Formation in GaAs on Si(100)

2015 ◽  
Vol 66 (7) ◽  
pp. 51-56 ◽  
Author(s):  
C. S. C. Barrett ◽  
A. G. Lind ◽  
X. Bao ◽  
Z. Ye ◽  
K.-Y. Ban ◽  
...  
Keyword(s):  
Domain Boundary ◽  
Antiphase Domain ◽  
Boundary Formation ◽  
Gaas On Si

scholarly journals Antiphase Domain Boundary Formation in 2D Ba–Ti–O on Pd(111): An Alternative to Phase Separation

2022 ◽  
Vol 259 (1) ◽  
pp. 2270001
Author(s):  
Friederike Elisa Wührl ◽  
Oliver Krahn ◽  
Sebastian Schenk ◽  
Stefan Förster ◽  
Wolf Widdra
Keyword(s):  
Phase Separation ◽  
Domain Boundary ◽  
Antiphase Domain ◽  
Boundary Formation

Domain boundary formation on Au(110)

2002 ◽  
Vol 59 (4) ◽  
pp. 559-565 ◽  
Author(s):  
M. J Rost ◽  
S. B. van Albada ◽  
J. W. M Frenken
Keyword(s):  
Domain Boundary ◽  
Boundary Formation

Electron microscopy of antiphase domain boundary tubes in deformed ordered alloys

1983 ◽  
Vol 387 (1792) ◽  
pp. 91-104 ◽  
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Flow Stress ◽  
Domain Boundary ◽  
Antiphase Domain ◽  
Dark Field ◽  
Al Alloy ◽  
Ordered Alloys ◽  
Microscope Images ◽  
Dark Field Electron

Antiphase domain boundary (APB) tubes have been observed in a slightly deformed Fe–30.5 at. % Al alloy in dark field electron microscope images taken in superlattice reflexions. The image contrast theory has been developed and accounts satisfactorily for the nature of the APB tube contrast observed. The contrast theory is used to estimate the heights of the tubes. The widths of the tubes range from 20 to 50 ņ, and the measured heights are in the range of one to six times the elementary height. Evidence is presented that tubes are generated by the Vidoz & Brown (1962) mechanism and by a mechanism of cross-slip and annihilation of screw superdislocations. The possible effects of tubes on flow stress are discussed.

STRUCTURE OF Cu-Au ALLOY NANOSCALE PARTICLES AND THE PHASE TRANSFORMATION

1996 ◽  
Vol 03 (01) ◽  
pp. 65-69 ◽  
Author(s):  
T. TADAKI ◽  
A. KOREEDA ◽  
Y. NAKATA ◽  
T. KINOSHITA
Keyword(s):  
Phase Transformation ◽  
Domain Boundary ◽  
High Resolution Electron Microscopy ◽  
Antiphase Domain ◽  
Minimum Size ◽  
Nominal Composition ◽  
Disorder Transition ◽  
Nanoscale Particles ◽  
Superlattice Structure ◽  
Alloy Particles

Atomic structure of nanoscale particles of a Cu-Au alloy with a nominal composition Cu3Au and the phase transformation therein are studied by means of high-resolution electron microscopy and electron diffraction. The particles 8.8 nm in diameter on average prepared by simultaneous vacuum deposition of the constituent elements exhibit as a whole an fcc structure of an alloy with a composition of 26.4 at.% Au. The alloy particles are ordered into the L12-type superlattice structure when heat-treated at 563 K for 1 h. The superlattice reflections disappear upon heating up to 773 K. In a particle about 10 nm in size an antiphase domain boundary is observed. It thus appears that the nanoscale particles of the alloy undergo the order-disorder transition, as in the bulk. However, the critical temperature Tc for the order-disorder transition of the nanoscale particles is found to be by about 90 K lower than that of the bulk. The minimum size of the alloy particles in which lattice fringes whose spacing corresponds to the interplanar spacing of the {100}-type superlattice planes are observed is about 4 nm. These facts suggest that a certain critical size and size effects are present for atomic ordering in the Cu-Au alloy particles.

scholarly journals The interfacial tension of a sharp antiphase domain boundary

1987 ◽  
Vol 56 (4) ◽  
pp. 517-532 ◽  
Author(s):  
A. G. Khachaturyan ◽  
J. W. Morris
Keyword(s):  
Interfacial Tension ◽  
Domain Boundary ◽  
Antiphase Domain

STUDY ON THE PEIREL–NABARRO STRESS OF IRON ALUMINIDES

2012 ◽  
Vol 19 (06) ◽  
pp. 1250057 ◽  
Author(s):  
L. X. PANG ◽  
N. F. HAN ◽  
H. SHI ◽  
J. XU ◽  
X. H. HAO ◽  
...  
Keyword(s):  
Domain Boundary ◽  
Antiphase Domain ◽  
Iron Aluminides ◽  
Stress Model ◽  
Theoretical Yield ◽  
Domain Boundaries ◽  
Ordered Intermetallic ◽  
Critical Resolved Shear Stress ◽  
B2 Structure ◽  
Type Crystal

The modified Peirel–Nabarro model of dislocations is not valid for the superdislocation bounded by the antiphase domain boundaries in long-range ordered intermetallic. In this work, a new Peirel–Nabarro Stress model is developed to take into account the critical resolved shear stress of antiphase domain boundary (APDB). Based on it, the Peirel–Nabarro Stress of DO3 structure and B2 structure in iron aluminides are calculated. Comparing the Peirel–Nabarro Stress of dislocations and the crystal theoretical yield strength, the results demonstrate B2-type crystal has good plasticity. It coincides with the experimental results well.

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