The in-plane structure domain size of nm-thick MoSe2 uncovered by low-momentum phonon scattering

Nanoscale ◽  
2021 ◽  
Vol 13 (16) ◽  
pp. 7723-7734
Author(s):  
Huan Lin ◽  
Ridong Wang ◽  
Hamidreza Zobeiri ◽  
Tianyu Wang ◽  
Shen Xu ◽  
...  
Keyword(s):  
Phonon Scattering ◽  
Domain Size ◽  
Crystallite Sizes ◽  
Structure Domain

The in-plane structure domain size of nm-thick MoSe2 is determined to be 58–85 nm based on the 0 K-limit low-momentum phonon scattering. It is close to the crystallite sizes of 64.8 nm in the (100) direction and 121 nm in the (010) direction of bulk MoSe2.

Thermal conductivity of SiC microwires: Effect of temperature and structural domain size uncovered by 0 K limit phonon scattering

2018 ◽  
Vol 44 (10) ◽  
pp. 11218-11224 ◽  
Author(s):  
Bowen Zhu ◽  
Ridong Wang ◽  
Shay Harrison ◽  
Kirk Williams ◽  
Ram Goduguchinta ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Phonon Scattering ◽  
Domain Size ◽  
Effect Of Temperature ◽  
Structural Domain

Influence of Sb doping on structure, domain size, and piezoelectric properties of Pb0.99Nb0.02[(Sn0.30Zr0.70)0.52Ti0.48]0.98O3 ceramics

2020 ◽  
Vol 46 (11) ◽  
pp. 19639-19645
Author(s):  
Yangxi Yan ◽  
Dongyan Zhang ◽  
Maolin Zhang ◽  
Yang Liu ◽  
Mo Zhao ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Domain Size ◽  
Sb Doping ◽  
Structure Domain

Structure Domain Size of Carbon Fibers

2021 ◽  
Vol 42 (6) ◽  
Author(s):  
Xuebo Liu ◽  
Hua Dong ◽  
Huan lin ◽  
Yan Li
Keyword(s):  
Carbon Fibers ◽  
Domain Size ◽  
Structure Domain

Sub-μm c-axis structural domain size of graphene paper uncovered by low-momentum phonon scattering

Carbon ◽  
2018 ◽  
Vol 126 ◽  
pp. 532-543 ◽  
Author(s):  
Meng Han ◽  
Jing Liu ◽  
Yangsu Xie ◽  
Xinwei Wang
Keyword(s):  
Phonon Scattering ◽  
Domain Size ◽  
Structural Domain ◽  
Graphene Paper

Antiphase Boundaries in Ordered Ni3FE Crystals

1969 ◽  
Vol 27 ◽  
pp. 62-63
Author(s):  
Y. H. Liu
Keyword(s):  
Domain Size ◽  
Antiphase Domain ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hardening Mechanism ◽  
Superlattice Structure ◽  
Disordered Phase ◽  
Domain Boundaries ◽  
Atomic Scattering ◽  
The Difference

Ordered Ni3Fe crystals possess a LI2 type superlattice similar to the Cu3Au structure. The difference in slip behavior of the superlattice as compared with that of a disordered phase has been well established. Cottrell first postulated that the increase in resistance for slip in the superlattice structure is attributed to the presence of antiphase domain boundaries. Following Cottrell's domain hardening mechanism, numerous workers have proposed other refined models also involving the presence of domain boundaries. Using the anomalous X-ray diffraction technique, Davies and Stoloff have shown that the hardness of the Ni3Fe superlattice varies with the domain size. So far, no direct observation of antiphase domain boundaries in Ni3Fe has been reported. Because the atomic scattering factors of the elements in NijFe are so close, the superlattice reflections are not easily detected. Furthermore, the domain configurations in NioFe are thought to be independent of the crystallographic orientations.

Towards quantitative simulations of inelastic electron diffraction patterns and images

1992 ◽  
Vol 50 (2) ◽  
pp. 1170-1171
Author(s):  
Z. L. Wang
Keyword(s):  
Phonon Scattering ◽  
Incident Beam ◽  
Dynamical Theory ◽  
Inelastic Electron ◽  
Additional Advantage ◽  
Coupled Equations ◽  
Atomic Vibrations ◽  
Diffraction Patterns ◽  
Primary Advantage ◽  
The One

A new dynamical theory has been developed based on Yoshioka's coupled equations for describing inelastic electron scattering in thin crystals. Compared to existing theories, the primary advantage of this theory is that the incoherent summation of the diffracted intensities contributed by electrons after exciting vast numbers of different excited states has been evaluated before any numerical calculation. An additional advantage is that the phase correlations of atomic vibrations are considered, so that full lattice dynamics can be combined in the phonon scattering calculation. The new theory has been proven to be equivalent to the inelastic multislice theory, and has been applied to calculate energy-filtered diffraction patterns and images formed by phonon, single electron and valence scattered electrons.A calculated diffraction pattern of elastic and phonon scattered electrons for a parallel incident beam case is in agreement with the one observed (Fig. 1), showing thermal diffuse scattering (TDS) streaks and Kikuchi pattern.

Formation process of periodic non-conservative antiphase boundary structure in L-Pd5Ce

1990 ◽  
Vol 48 (4) ◽  
pp. 162-163
Author(s):  
Masaru Itakura ◽  
Noriyuki Kuwano ◽  
Kensuke Oki
Keyword(s):  
Formation Process ◽  
Domain Size ◽  
Antiphase Boundary ◽  
Boundary Structure ◽  
Temperature Phase ◽  
Arc Melting ◽  
Iced Water ◽  
Antiphase Domains ◽  
Low Temperature Phase ◽  
Degree Of Order

The low temperature phase of Pd5Ce (L-Pd5Ce) has a one-dimensional long period superstructure (1D-LPS) derived from Ll2. The periodic antiphase boundaries (APBs) are parallel to (110) planes and have a shift vector of 1/2[110]. Hereafter, the indices are referred to the basic lattices of Ll2 As insertion of the APB causes a change in composition, such an APB is called “non-conservative”. Then, a domain size M depends upon the Ce concentration in the alloy. It was found that M increases also with temperature. The temperature dependency of M is attributed to a change of the degree of order within the antiphase domains. In this work, morphology of the non-conservative APBs is observed to clarify the formation process of the 1D-LPS.The alloy of Pd-16.7 at%Ce was prepared by arc melting in argon atmosphere. Disc specimens made from the alloy ingot were first held at 985 K for 260 ks and quenched in iced water to obtain the state of M=∞ or Ll2, followed by annealing for various lengths of time. The annealing temperature was 873 K where the equilibrium value for M is about 3 in unit of (110) lattice spacing of Ll2. Observation was carried out using microscopes JEM-2000FX, JEM-4000EX (HVEM Lab., Kyushu Univ.) and JEM-2000EX (Dept. of Mater. Sci. Tech., Kyushu Univ.).

Domains and domain nucleation in magnetron-sputtered CoCr thin films

1993 ◽  
Vol 51 ◽  
pp. 1046-1047
Author(s):  
B. G. Demczyk
Keyword(s):  
Thin Films ◽  
Domain Structure ◽  
Magnetic Domain ◽  
Domain Size ◽  
Film Plane ◽  
Magnetic Domain Structure ◽  
Perpendicular Magnetization ◽  
Columnar Grains ◽  
Reversal Mechanism ◽  
Lorentz Transmission Electron Microscopy

CoCr thin films have been of interest for a number of years due to their strong perpendicular anisotropy, favoring magnetization normal to the film plane. The microstructure and magnetic properties of CoCr films prepared by both rf and magnetron sputtering have been examined in detail. By comparison, however, relatively few systematic studies of the magnetic domain structure and its relation to the observed film microstructure have been reported. In addition, questions still remain as to the operative magnetization reversal mechanism in different film thickness regimes. In this work, the magnetic domain structure in magnetron sputtered Co-22 at.%Cr thin films of known microstructure were examined by Lorentz transmission electron microscopy. Additionally, domain nucleation studies were undertaken via in-situ heating experiments.It was found that the 50 nm thick films, which are comprised of columnar grains, display a “dot” type domain configuration (Figure 1d), characteristic of a perpendicular magnetization. The domain size was found to be on the order of a few structural columns in diameter.

Theoretical single-domain size of NiZn ferrite

1998 ◽  
Vol 08 (PR2) ◽  
pp. Pr2-389-Pr2-392 ◽  
Author(s):  
A. Aharoni ◽  
J. P. Jakubovics
Keyword(s):  
Domain Size ◽  
Single Domain
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