Crystal structure re-determination of binary IrAl2.75 into Ir8Al21.22

Авторы: Gribanov A.V., Murashova E.V., Gribanova S.V., Marushina E.V., Plenkin D.S., Dunaev S.F.
Журнал: Journal of Solid State Chemistry
Том: 339
Год издания: 2024
Издательство: Elsevier B.V.
Местоположение издательства: Netherlands
Первая страница: 1
Последняя страница: 124967
Номер статьи: 10
DOI: 10.1016/j.jssc.2024.124967
Аннотация: The Ir8Al21.22 binary intermetallic compound was synthesized using arc melting technique. Its crystal structureprobed by single-crystal X-ray diffraction is a superstructure variant of the previously reported cubic IrAl2.75compound. Ir8Al21.22 crystallizes in the Fmm2 space group with the unit cell parameters of a = 15.3307(9) Å, b =15.3226(10) Å, c = 15.3129(9) Å, and V = 3597.1(4) Å3. The crystal structure contains columns of interpenetratingdistorted icosahedral clusters – a characteristic feature of the approximant phases and quasicrystals.Electronic structure calculations indicate strong hybridization between valence orbitals of iridium and aluminumatoms accompanied by the formation of pseudogap, which separates the valence and conduction bands.
Добавил в систему: Грибанов Александр Викторович

	ИСТИНА	Войти в систему Регистрация
	ИПМех РАН
	Главная Поиск Статистика О проекте Помощь

ИСТИНА