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In situ study of rotating lattice single‐crystal formation in Sb 2 S 3 glass by Laue μXRD
Author(s) -
AuYeung Courtney,
Stan Camelia,
Tamura Nobumichi,
Jain Himanshu,
Dierolf Volkmar
Publication year - 2020
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/jace.16905
Subject(s) - nucleation , materials science , crystal (programming language) , lattice (music) , crystal structure , single crystal , crystallography , diffraction , x ray crystallography , lattice constant , lattice energy , ferroelectricity , thermal expansion , condensed matter physics , dielectric , optics , chemistry , physics , composite material , optoelectronics , organic chemistry , computer science , acoustics , programming language
Single‐crystal architectures in glass, formed by a solid‐solid transformation via laser heating, are novel solids with a rotating lattice. To understand the process of lattice formation that proceeds via crystal growth, we have observed in situ Sb 2 S 3 crystal formation under X‐ray irradiation with simultaneous Laue micro X‐ray diffraction (μXRD) pattern collection. By translating the sample with respect to the beam, we form rotating lattice single (RLS) crystal lines with a consistently linear relationship between the rotation angle and distance from nucleation site. The lines begin with a seed crystal, followed by a transition region comprising of sub‐grain or very similarly oriented grains, followed by the presence of a rotating lattice single crystal of unrestricted length. The results demonstrate that the primary cause of lattice rotation within RLS crystals is the densification accompanying the glass → crystal transformation, rather than stresses produced from the difference in thermal expansion coefficient of the two phases or paraelectric → ferroelectric transition during cooling to ambient temperature.