Optical absorption spectra of nanocrystalline cupric oxide: possible effects of nanoscopic phase separation / Gizhevskii BA,Sukhorukov YP,Loshkareva NN,Moskvin AS,Zenkov EV,Kozion EA // JOURNAL OF PHYSICS-CONDENSED MATTER. - 2005. - V. 17, l. 3. - P. 499-506.

ISSN/EISSN:

0953-8984 / нет данных

Type:

Article

Abstract:

Optical absorption spectra of nanocrystalline cupric oxide CuO samples. obtained using the converging spherical shock wave procedure. reveal significant spectral weight red-shift as compared with spectra of single-crystalline CuO samples. In addition, some of these samples manifest remarkable temperature-dependent resonances near 1.3-1.6 eV. The minimal model suggested to explain both effects implies the CuO nanoceramic to be a metastable system of metallic-like nanoscale droplets with Drude optical response, nucleating in the bare insulating medium under the stimulating influence of the conditions of the specimen treatment. Simple effective medium theory is shown to provide a reasonable description of the experimental spectra in terms of the plasmon features due to the droplet phase.

Author keywords:

CUO; MICROSTRUCTURE; IRRADIATION; IONS

DOI:

10.1088/0953-8984/17/3/009

Web of Science ID:

ISI:000226686300011

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JAN 26
Publisher	IOP PUBLISHING LTD
Address	TEMPLE CIRCUS, TEMPLE WAY, BRISTOL BS1 6BE, ENGLAND
Language	English
Keywords-Plus	CUO; MICROSTRUCTURE; IRRADIATION; IONS
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
Author-Email	alexandr.moskvin@usu.ru
ResearcherID-Numbers	Gizhevskii, Boris/K-3741-2013 Loshkareva, Natalia/K-1587-2013 Sukhorukov, Yuri/J-3588-2013
ORCID-Numbers	Gizhevskii, Boris/0000-0002-3549-3066 Loshkareva, Natalia/0000-0002-1701-8712 Sukhorukov, Yuri/0000-0002-8874-1019
Number-of-Cited-References	18
Usage-Count-Since-2013	1
Journal-ISO	J. Phys.-Condes. Matter
Doc-Delivery-Number	892YQ