Observation of ferromagnetism at room temperature in polycrystalline Zn1-x Fe (x) O solid solutions synthesized by the precursor method / Krasil'nikov V. N.,Dyachkova T. V.,Tyutyunnik A. P.,Marchenkov V. V.,Gyrdasova O. I.,Baklanova I. V.,Kuznetsov M. V.,Weber H. W. // PHYSICS OF THE SOLID STATE. - 2015. - V. 57, l. 6. - P. 1079-1088.

ISSN/EISSN:

1063-7834 / 1090-6460

Type:

Article

Abstract:

Polycrystalline Zn1 - x Fe (x) O (0 a parts per thousand currency sign x a parts per thousand currency sign 0.075) solid solutions with the wurtzite structure, which belong to the class of diluted magnetic semiconductors, have been synthesized by the precursor method using a mixed formate of the composition Zn1 - x Fe (x) (HCOO)(2) center dot 2H(2)O as a precursor. It has been found that the iron concentration in Zn1 - x Fe (x) O solid solutions, which exhibit ferromagnetic properties with a high degree of magnetization at room temperature, is determined by two factors: (1) the degree of substitution of iron for zinc in the structure of zinc formate Zn(HCOO)(2) center dot 2H(2)O and, therefore, in the structure of zinc oxide ZnO and (2) the conditions of heat treatment of the precursor. It has been shown using samples with x = 0.025 and 0.05 as an example that the magnetization of Zn1 - x Fe (x) O solid solutions regularly increases with an increase in the iron concentration. Based on the results of the X-ray photoelectron spectroscopy analysis of Zn1 - x Fe (x) O powders, it has been suggested that the iron concentration increases in the surface layer of particles, and the oxidation state of iron is 3+.

Author keywords:

DOPED ZNO NANOCRYSTALS; ZINC-OXIDE; PHOTOCATALYTIC PROPERTIES; MAGNETIC-PROPERTIES; COORDINATION POLYMER; IRON; NANORODS; NANOSTRUCTURES; NANOPARTICLES; COBALT

DOI:

10.1134/S1063783415060207

Web of Science ID:

ISI:000356324500005

Соавторы в МНС:

Другие поля

Поле	Значение
Month	JUN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1090-6460
Keywords-Plus	DOPED ZNO NANOCRYSTALS; ZINC-OXIDE; PHOTOCATALYTIC PROPERTIES; MAGNETIC-PROPERTIES; COORDINATION POLYMER; IRON; NANORODS; NANOSTRUCTURES; NANOPARTICLES; COBALT
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	kras@ihim.uran.ru
ResearcherID-Numbers	Tyutyunnik, Alexander/P-2230-2015 Gyrdasova, Olga/M-3594-2015 Marchenkov, Vyacheslav/J-7698-2013
ORCID-Numbers	Gyrdasova, Olga/0000-0002-2923-1297 Marchenkov, Vyacheslav/0000-0003-2044-1789
Funding-Acknowledgement	Russian Foundation for Basic Research {[}15-03-02908]; Presidium of the Ural Branch of the Russian Academy of Sciences {[}15-9-3-31]
Funding-Text	This study was supported by the Russian Foundation for Basic Research (project no. 15-03-02908) and the Presidium of the Ural Branch of the Russian Academy of Sciences (project no. 15-9-3-31).
Number-of-Cited-References	40
Usage-Count-Since-2013	10
Journal-ISO	Phys. Solid State
Doc-Delivery-Number	CK6FS