Electronic structure of metal hydrides studied by high field magnetization / Yamaguchi M,Yamamoto I,Bartashevich MI,Katori HA,Goto T // JOURNAL OF ALLOYS AND COMPOUNDS. - 1995. - V. 231, l. 1-2. - P. 159-163.

ISSN/EISSN:

0925-8388 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The influence of hydrogen on the electronic structure of an intermetallic compound has been studied from magnetization measurements in ultrahigh magnetic fields up to 130 T for a prototype system YCo3Hx. The dependence of the magnetic moment on hydrogen content and magnetic field lead to the following conclusions. The general structure of the density of states (DOS) in the upper part of the 3d band is still maintained in the hydrides, but the curvature of the DOS curve is slightly modified in the beta phase (x = 1.0-1.9), and more strongly modified in the gamma phase (x = 3.2-4.0). The modification of the DOS is related to the occupation sites of hydrogen. The electronic population in the 3d band is hardly changed upon hydrogenation, and it is about + 0.1 electron Co-1 per absorbed hydrogen atom. The electrons originating from hydrogen atoms are almost contained in the metal-hydrogen bonding band. The rest of them occupy the 3d band, causing the Fermi level to shift slightly upwards.

Author keywords:

electronic structure; metal hydrides; high field magnetization PSEUDOBINARY COMPOUNDS Y(FE; INTERMETALLIC COMPOUNDS; Y-CO; NI)3; YCO3

DOI:

10.1016/0925-8388(95)01793-3

Web of Science ID:

ISI:A1995TQ53600029

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	DEC 15
Note	International Symposium on Metal-Hydrogen Systems - Fundamentals and Applications, FUJIYOSHIDA SHI, JAPAN, NOV 06-11, 1994
Publisher	ELSEVIER SCIENCE SA LAUSANNE
Address	PO BOX 564, 1001 LAUSANNE 1, SWITZERLAND
Language	English
Keywords-Plus	PSEUDOBINARY COMPOUNDS Y(FE; INTERMETALLIC COMPOUNDS; Y-CO; NI)3; YCO3
Research-Areas	Chemistry; Materials Science; Metallurgy \& Metallurgical Engineering
Web-of-Science-Categories	Chemistry, Physical; Materials Science, Multidisciplinary; Metallurgy \& Metallurgical Engineering
ResearcherID-Numbers	Katori, Hiroko/C-8794-2013
ORCID-Numbers	YAMAMOTO, Isao/0000-0002-3626-7917 Yamamoto, Isao/0000-0001-5031-3994 Bartashevich, Mikhail/0000-0001-6853-2992
Number-of-Cited-References	13
Journal-ISO	J. Alloy. Compd.
Doc-Delivery-Number	TQ536