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(a) Substrate and film with lattice parameters as and a0, respectively, where as<a0. (b) Pseudomorphic growth with compressive strain. (c) Misfit dislocation of thin-film growth beyond critical thickness.
Published: March 2023
FIG. 3.13 (a) Substrate and film with lattice parameters a s and a 0 , respectively, where a s < a 0 . (b) Pseudomorphic growth with compressive strain. (c) Misfit dislocation of thin-film growth beyond critical thickness. More about this image found in (a) Substrate and film with lattice parameters a s and a 0...
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(a) XRD of thickness-dependent VO2 epitaxial film on rutile TiO2 substrate; (b) schematic shows the growth of rutile VO2 phase on rutile TiO2; (c) resistance–temperature plot; and (d) corresponding differential resistance plot showing occurrences of resistance drop at different temperatures for varied VO2 film thickness (Fan et al., 2014).
Published: March 2023
FIG. 4.6 (a) XRD of thickness-dependent VO2 epitaxial film on rutile TiO2 substrate; (b) schematic shows the growth of rutile VO2 phase on rutile TiO2; (c) resistance–temperature plot; and (d) corresponding differential resistance plot showing More about this image found in (a) XRD of thickness-dependent VO2 epitaxial film on rutile TiO...
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Schematic of ATG instability: the undulations of the film lead to relaxation of elastic energy on the peaks; in the process, the troughs are more strained as compared to a flat surface. Thus, once established, the perturbations tend to grow. Addition of material, given the chemical potential differences due to the stresses exacerbates the instability.
Published: March 2023
FIG. 8.2 Schematic of ATG instability: the undulations of the film lead to relaxation of elastic energy on the peaks; in the process, the troughs are more strained as compared to a flat surface. Thus, once established, the perturbations tend to grow. Addition of material, given the chemical More about this image found in Schematic of ATG instability: the undulations of the film lead to relaxatio...
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Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell; the far-field composition is 0.01. From top left, the microstructures correspond to (non-dimensional) time units: t = 105 200, t = 109 600, t = 112 200, and t = 142 200, respectively.
Published: March 2023
FIG. 8.5 Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell; the far-field composition is 0.01. From top left, the microstructures correspond to (non-dimensional) time units: t = 105 200, t = 109 600, t = 112 More about this image found in Microstructural evolution in a thin film system with isotropic elasticity a...
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Microstructural evolution in a thin film system with isotropic elasticity, the far-field composition is 0.05 leading to growth along with film break-up. From the top left, the microstructures correspond to (non-dimensional) time units: t = 114 600, t = 122 800, t = 133 800 and t = 205 800, respectively. These times indicate that the growth slows down the break-up dynamics compared to the previous case of (near) static break-up.
Published: March 2023
FIG. 8.6 Microstructural evolution in a thin film system with isotropic elasticity, the far-field composition is 0.05 leading to growth along with film break-up. From the top left, the microstructures correspond to (non-dimensional) time units: t = 114 600, t = 122 800 More about this image found in Microstructural evolution in a thin film system with isotropic elasticity, ...
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Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell; the far-field composition is 0.01. From the top left, the microstructures correspond to (non-dimensional) time units: t = 78 800, t = 84 800, t = 100 800 and t = 251 000, respectively. Note that relatively, the break-up is faster for two films as compared to the case of a single film in the simulation cell.
Published: March 2023
FIG. 8.7 Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell; the far-field composition is 0.01. From the top left, the microstructures correspond to (non-dimensional) time units: t = 78 800, t = 84 800, t = 100 More about this image found in Microstructural evolution in a thin film system with isotropic elasticity a...
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Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell, the far-field composition is 0.05 leading to growth along with film break-up. From top left, the microstructures correspond to (non-dimensional) time units: t = 110 800, t = 122 800, t = 143 400, and t = 270 800, respectively. These times indicate that the growth slows down the break-up dynamics compared to the previous case of (near) static break-up.
Published: March 2023
FIG. 8.8 Microstructural evolution in a thin film system with isotropic elasticity and two films in the simulation cell, the far-field composition is 0.05 leading to growth along with film break-up. From top left, the microstructures correspond to (non-dimensional) time units: t = 110 More about this image found in Microstructural evolution in a thin film system with isotropic elasticity a...
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Microstructural evolution in a thin film system with AZ=13. From top left, the microstructures correspond to (non-dimensional) time units: t = 9600, t = 11 400, t = 23 600 and t = 489 400, respectively.
Published: March 2023
FIG. 8.9 Microstructural evolution in a thin film system with A Z = 1 3 . From top left, the microstructures correspond to (non-dimensional) time units: t = 9600, t = 11 400, t = 23 600 and t = 489 400, respectively. More about this image found in Microstructural evolution in a thin film system with A Z = 1 3 ...
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Microstructural evolution in a thin film system with AZ = 1. From top left, in the clockwise direction, the microstructures correspond to (non-dimensional) time units: t = 2600, t = 3000, t = 4000, and t = 11 700, respectively.
Published: March 2023
FIG. 8.10 Microstructural evolution in a thin film system with AZ = 1. From top left, in the clockwise direction, the microstructures correspond to (non-dimensional) time units: t = 2600, t = 3000, t = 4000, and t = 11 700, respectively. More about this image found in Microstructural evolution in a thin film system with AZ...
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Microstructural evolution in a thin film system with AZ=13 in 3D. From top left, in the clockwise direction, the microstructures correspond to (non-dimensional) time units: t = 100, t = 500, t = 1000, and t = 11 700 for the left and right columns, respectively.
Published: March 2023
FIG. 8.11 Microstructural evolution in a thin film system with A Z = 1 3 in 3D. From top left, in the clockwise direction, the microstructures correspond to (non-dimensional) time units: t = 100, t = 500, t = 1000, and t = 11 700 for the left More about this image found in Microstructural evolution in a thin film system with A Z = 1 3 ...
Book Chapter
Series: AIPP Books, Principles
Published: March 2023
10.1063/9780735425590_008
EISBN: 978-0-7354-2559-0
ISBN: 978-0-7354-2556-9
...Gururajan, M. P. and Kumar, S., “Elastic stress driven instabilities in thin films and their assemblies,” in Strain Engineering in Functional Materials and Devices, edited by R. Ramadurai and S. Bhattacharyya (AIP Publishing, Melville, New York, 2023), pp. 8-1–8-26. Introduction Thin...
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Nanostrain analysis for nanocomposite YBCO films (Llordés et al., 2012). (a) Williamson–Hall plots of the symmetric YBCO Bragg reflection, (b) dependence of the YBCO vertical nanostrain (determined from Williamson–Hall plots) on the incoherent specific interface of nanodots, (c) nanostrain anisotropy, and (d) dependence of coherent domain size on nanostrain along the c-axis in YBCO–BZO nanocomposites, as determined by Rietveld analysis of high-resolution XRD measurements.
Published: March 2023
FIG. 5.11 Nanostrain analysis for nanocomposite YBCO films ( Llordés et al., 2012 ). (a) Williamson–Hall plots of the symmetric YBCO Bragg reflection, (b) dependence of the YBCO vertical nanostrain (determined from Williamson–Hall plots) on the incoherent specific interface of nanodots More about this image found in Nanostrain analysis for nanocomposite YBCO films ( Llordés et al....
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(a) Ferroelectric switching characteristics of the entirely rhombohedral film (condition I). (b) Ferroelectric switching characteristics of the super tetragonal film (condition II). (c) Ferroelectric switching characteristics of the mixed phase (T + R) film (condition III). The corresponding strain conditions are mentioned in Table 6.2.
Published: March 2023
FIG. 6.3 (a) Ferroelectric switching characteristics of the entirely rhombohedral film (condition I). (b) Ferroelectric switching characteristics of the super tetragonal film (condition II). (c) Ferroelectric switching characteristics of the mixed phase (T + R) film (condition More about this image found in (a) Ferroelectric switching characteristics of the entirely rhombohedral fi...
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SIMS depth profiles showing Si accumulation at the film/substrate interface for MOCVD grown films. After BHF etch, the Si peak at the interface decreases by up to one order of magnitude.
Published: February 2023
FIG. 3.3 SIMS depth profiles showing Si accumulation at the film/substrate interface for MOCVD grown films. After BHF etch, the Si peak at the interface decreases by up to one order of magnitude. More about this image found in SIMS depth profiles showing Si accumulation at the film/substrate interface...