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superlattice

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Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003733
EISBN: 978-1-62708-177-1
...Abstract Abstract Superlattice is an ordered array of atoms that occur during their rearrangement from random site locations in the disordered solution to specific lattice sites in the ordered structure during phase transformation. This article provides a description of antiphase boundaries...
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006229
EISBN: 978-1-62708-163-4
.... This article describes the order-disorder transformation that typically occurs on cooling from a disordered solid solution to an ordered phase. It provides a table that lists selected superlattice structures and alloy phases that order according to each superlattice. The article informs that spinodal...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001260
EISBN: 978-1-62708-170-2
... Schematic representation of a multiple-layer alloy consisting of alternating lamellae of species A and species B. The thicknesses of the A and B layers are given by λ A and λ B , respectively. The modulation wavelength that characterizes the multiple-layer superlattice structure is λ = λ A + λ B...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001775
EISBN: 978-1-62708-178-8
... of Bulk Samples Thin Film Composition and Layer Thickness Impurity Profiles Damage Depth Profile Surface Peak Lattice Location of Dopant Atoms Superlattice/Interface Studies Backscattering is a two-body elastic collision process. The first basic concept of backscattering...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006637
EISBN: 978-1-62708-213-6
.... Source: Ref 34 Fig. 14 Energy spectra of 1.76 MeV He + ions backscattered from [100] GaSb/AlSb superlattices. Depth scales based on antimony and gallium signals are marked in units of the number of layers (30 nm per layer). [100]- and [110]-aligned spectra, a random spectrum taken...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003251
EISBN: 978-1-62708-199-3
... planes. Because their amplitudes are different, only partial destructive interference will occur between beams that are 180° out of phase with one another. As a result, a diffracted beam will be observed. The presence of extra “superlattice” lines in a diffraction pattern—diffraction at angles where...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003251
EISBN: 978-1-62708-199-3
.... The presence of extra “superlattice” lines in a diffraction pattern—diffraction at angles where no diffraction occurs for the random solid solution—is indicative of the solution becoming ordered ( Fig. 12 ). Studies of ordering are typically conducted using Debye-Scherrer cameras or diffractometers. Fig...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006655
EISBN: 978-1-62708-213-6
... origin. Fig. 7 Diffraction pattern from a superlattice. (a) Rectangular substrate lattice and corresponding diffraction pattern showing fundamental reflections. (b) Substrate plus p (2 × 1) overlayer and corresponding diffraction pattern showing fundamental and superlattice reflections...
Series: ASM Desk Editions
Publisher: ASM International
Published: 01 December 1998
DOI: 10.31399/asm.hb.mhde2.a0003084
EISBN: 978-1-62708-199-3
...; a one-dimensional, long-period superlattice, having antiphase boundaries spaced at intervals of five unit cells of the disordered state Fig. 8 Two-dimensional, long-period superlattice, having antiphase boundaries spaced at intervals M 1 and M 2 and unit-cell dimensions a, b, and c...
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001769
EISBN: 978-1-62708-178-8
... of the Ewald sphere (2π/λ). Similarly, as the orientation of the crystal surface is changed in relation to the incident beam, the reciprocal lattice rotates about its origin. Fig. 7 Diffraction pattern from a superlattice. (a) Rectangular substrate lattice and corresponding diffraction pattern...
Book Chapter

Series: ASM Handbook
Volume: 13B
Publisher: ASM International
Published: 01 January 2005
DOI: 10.31399/asm.hb.v13b.a0006544
EISBN: 978-1-62708-183-2
... be considered. For example, in the copper-gold system, a superlattice forms that is made up of 10 cells of the disordered lattice, creating what is called long-period ordering. As shown in Fig. 1 , a space lattice can be viewed as a three-dimensional network of straight lines. The intersections...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006681
EISBN: 978-1-62708-213-6
... the Nishiyama-Wassermann orientation relationship. Courtesy of K. Lorcharoensery Fig. 33 Bright-field image and diffraction pattern from a face-centered cubic (fcc) matrix (austenite) containing precipitates having the ordered fcc (L1 2 ) superlattice, Ni 3 (Ti,Al). The fcc spot pattern is indexed...
Book Chapter

Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003722
EISBN: 978-1-62708-177-1
Book Chapter

Series: ASM Handbook
Volume: 3
Publisher: ASM International
Published: 27 April 2016
DOI: 10.31399/asm.hb.v03.a0006292
EISBN: 978-1-62708-163-4
Series: ASM Handbook Archive
Volume: 10
Publisher: ASM International
Published: 01 January 1986
DOI: 10.31399/asm.hb.v10.a0001772
EISBN: 978-1-62708-178-8
... composition fluctuations that can easily be overlooked in normal concentration profiles. Ladder diagrams are also used to study ordered alloys because analysis perpendicular to a superlattice plane may permit direct determination of an order parameter. Another use is for identifying the location of impurity...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001284
EISBN: 978-1-62708-170-2
... response, and maintenance. The gas-mixing manifold is an important component of the MOCVD system. The proper design of this manifold is crucial for growing superlattices and quantum-well structures, and for reducing the memory effect associated with some dopant sources ( Ref 77 ). Because the manifold...
Series: ASM Handbook
Volume: 2
Publisher: ASM International
Published: 01 January 1990
DOI: 10.31399/asm.hb.v02.a0001102
EISBN: 978-1-62708-162-7
...). Source: Ref 166 Fig. 24 Crystal structure of Ti 3 Al. (a) D 0 19 hexagonal superlattice structure of Ti 3 Al with lattice constants of c = 0.420 nm and a = 0.577 nm. (b) Possible slip planes and slip vectors in the structure Fig. 25 Crystal structure of γ-TiAl alloys...
Series: ASM Handbook
Volume: 5
Publisher: ASM International
Published: 01 January 1994
DOI: 10.31399/asm.hb.v05.a0001294
EISBN: 978-1-62708-170-2
... Effects of Added Gas High-Temperature Superconductors Ferroelectrics Mechanical Filters Off-Axis PLD PLD is currently being used to deposit thin films for a wide range of technological applications. These films vary from epitaxial superlattices of electronic materials to polycrystalline...
Series: ASM Handbook
Volume: 10
Publisher: ASM International
Published: 15 December 2019
DOI: 10.31399/asm.hb.v10.a0006673
EISBN: 978-1-62708-213-6
..., Morphological and Optical Properties of ZnO Nano-Fibers , Superlattices Microstruct. , Vol 90 , 2015 , 10.1016/j.spmi.2015.12.004 Overview Introduction Specimen Preparation Calibration and Accuracy Data Analysis Combined Techniques Applications and Interpretation Thermogravimetric...
Series: ASM Handbook
Volume: 9
Publisher: ASM International
Published: 01 December 2004
DOI: 10.31399/asm.hb.v09.a0003770
EISBN: 978-1-62708-177-1
... the tendency to overage or soften at extended aging times and higher aging temperatures. In C17500 and C17200 ( Table 1 ), the beryllides are (Cu,Co)Be with an ordered body-centered cubic CsCl (B2) superlattice. The beryllides in C17510 are (Cu,Ni)Be; they also display the B2 superlattice. Excellent room...