Publication:
Disorder-Induced Ordering in Gallium Oxide Polymorphs

Дата
2022
Авторы
Azarov, A.
Bazioti, C.
Vajeeston, P.
Monakhov, E.
Venkatachalapathy, V.
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Издатель
Научные группы
Организационные подразделения
Организационная единица
Институт ядерной физики и технологий
Цель ИЯФиТ и стратегия развития - создание и развитие научно-образовательного центра мирового уровня в области ядерной физики и технологий, радиационного материаловедения, физики элементарных частиц, астрофизики и космофизики.
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Аннотация
© 2022 American Physical SocietyPolymorphs are common in nature and can be stabilized by applying external pressure in materials. The pressure and strain can also be induced by the gradually accumulated radiation disorder. However, in semiconductors, the radiation disorder accumulation typically results in the amorphization instead of engaging polymorphism. By studying these phenomena in gallium oxide we found that the amorphization may be prominently suppressed by the monoclinic to orthorhombic phase transition. Utilizing this discovery, a highly oriented single-phase orthorhombic film on the top of the monoclinic gallium oxide substrate was fabricated. Exploring this system, a novel mode of the lateral polymorphic regrowth, not previously observed in solids, was detected. In combination, these data envisage a new direction of research on polymorphs in Ga2O3 and, potentially, for similar polymorphic families in other materials.
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Цитирование
Disorder-Induced Ordering in Gallium Oxide Polymorphs / Azarov, A. [et al.] // Physical Review Letters. - 2022. - 128. - № 1. - 10.1103/PhysRevLett.128.015704
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