Optical evidence of strong coupling between valence-band holes and d-localized spins in Zn1-xMnxO / Sokolov V. I.,Druzhinin A. V.,Gruzdev N. B.,Dejneka A.,Churpita O.,Hubicka Z.,Jastrabik L.,Trepakov V. // PHYSICAL REVIEW B. - 2010. - V. 81, l. 15.

ISSN/EISSN:

1098-0121 / нет данных

Type:

Article

Abstract:

We report on optical-absorption study of Zn1-xMnxO (x=0-0.06) films on fused silica substrates taking special attention to the spectral range of the fundamental absorption edge (3.1-4 eV). Well-pronounced excitonic lines observed in the region 3.40-3.45 eV were found to shift to higher energies with increasing Mn concentration. The optical band-gap energy increases with x too, reliably evidencing strong coupling between oxygen holes and localized spins of manganese ions. In the 3.1-3.3 eV region the optical-absorption curve in the manganese-contained films was found to shift to lower energies with respect to that for undoped ZnO. The additional absorption observed in this range is interpreted as a result of splitting of a localized Zhang-Rice-type state into the band gap.

Author keywords:

BARRIER-TORCH DISCHARGE; ATMOSPHERIC-PRESSURE; SINGLE CRYSTALS; ZNO; MN; FILMS; SEMICONDUCTORS; NANOSTRUCTURES; LUMINESCENCE; SPECTRA

DOI:

10.1103/PhysRevB.81.153104

Web of Science ID:

ISI:000277210500004

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	APR 15
Publisher	AMER PHYSICAL SOC
Address	ONE PHYSICS ELLIPSE, COLLEGE PK, MD 20740-3844 USA
Language	English
Article-Number	153104
Keywords-Plus	BARRIER-TORCH DISCHARGE; ATMOSPHERIC-PRESSURE; SINGLE CRYSTALS; ZNO; MN; FILMS; SEMICONDUCTORS; NANOSTRUCTURES; LUMINESCENCE; SPECTRA
Research-Areas	Physics
Web-of-Science-Categories	Physics, Condensed Matter
ResearcherID-Numbers	Jastrabik, Lubomir /H-1217-2014 Trepakov, Vladimir/H-1352-2014 Druzhinin, Anatoly/K-5765-2013 Churpita, Oleksandr/H-2442-2014 Gruzdev, Nikita/J-9311-2013 Sokolov, Viktor/J-9376-2013 Dejneka, Alexandr/G-6384-2014 Hubicka, Zdenek/H-1563-2014
ORCID-Numbers	Druzhinin, Anatoly/0000-0001-9944-096X Gruzdev, Nikita/0000-0001-7563-6685 Sokolov, Viktor/0000-0002-6252-8914 Dejneka, Alexandr/0000-0002-5116-8781 Hubicka, Zdenek/0000-0002-4051-057X
Funding-Acknowledgement	Czech {[}AV0Z10100522, KJB100100703, 202/09/J017, KAN301370701]; MSMT CR and Russian {[}1M06002, 08-02-99080r-ofi of RFBR]; PP RAS Quantum Physics of Condensed Matter; State {[}5162]
Funding-Text	Authors thank T. Dietl, V. I. Anisimov, and A. V. Lukoyanov for useful discussions and V. Valvoda for kind assistance in XRD experiments. This work was supported by Czech Grants No. AV0Z10100522 of AV CR, No. KJB100100703 of GA AV, No. 202/09/J017 of GA CR, No. KAN301370701 of AV CR, and No. 1M06002 of MSMT CR and Russian Grants No. 08-02-99080r-ofi of RFBR, PP RAS ``Quantum Physics of Condensed Matter{''
Number-of-Cited-References	25
Usage-Count-Since-2013	7
Journal-ISO	Phys. Rev. B
Doc-Delivery-Number	590FQ