High-frequency EPR, ESE, and ENDOR spectroscopy of Co- and Mn-doped ZnO quantum dots

被引：15

作者：

Baranov, Pavel G. ^{[1
,2
]}

Orlinskii, Sergei B. ^{[3
]}

Donega, Celso de Mello ^{[4
]}

Schmidt, Jan ^{[5
]}

机构：

[1] AF Ioffe Phys Tech Inst, St Petersburg 194021, Russia

[2] St Petersburg State Polytech Univ, St Petersburg 195251, Russia

[3] Kazan VI Lenin State Univ, Fed Ctr Shared Facil, Kazan 420008, Russia

[4] Univ Utrecht, Debye Inst Nanomat Sci, Utrecht, Netherlands

[5] Leiden Univ, Huygens Lab, Leiden, Netherlands

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2013年 / 250卷 / 10期

基金：

俄罗斯基础研究基金会;

关键词：

Co; electron nuclear double resonance; electron paramagnetic resonance; electron spin echo; Mn; shallow donor; ZnO;

D O I：

10.1002/pssb.201200948

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Co- and Mn-doped ZnO quantum dots (QDs) with ZnO/Zn(OH)(2) core-shell structure were studied using high-frequency electron paramagnetic resonance (EPR), electron spin echo, and electron-nuclear double resonance (ENDOR) at low temperature. The shape of the EPR spectrum of cobalt ions was observed to change as a result of Co2+ coupling with optically created shallow donors (SDs). This, along with a shift of SDs line, is a direct demonstration of interaction between the magnetic ion and donor electron in confined system of ZnO QD. ENDOR resonance of the H-1 hydrogen nuclei detected by the EPR signal of Co2+ and Mn2+ evidence the hyperfine coupling between these ions, located in the ZnO core, and the protons outside the quantum dot core in the shell. (C) 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

引用

页码：2137 / 2140

页数：4

共 9 条

[1] Magnetic and structural properties basic solid state physics of transition metal doped zinc-oxide nanostructures [J].

Ankiewicz, Amelia O. ;

Gehlhoff, Wolfgang ;

Martins, Joana S. ;

Pereira, Angela S. ;

Pereira, Sergio ;

Hoffmann, Axel ;

Kaidashev, Evgeni M. ;

Rahm, Andreas ;

Lorenz, Michael ;

Grundmann, Marius ;

Carmo, Maria C. ;

Trindade, Tito ;

Sobolev, Nikolai A. .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2009, 246 (04) :766-770

[2] High-Frequency EPR and ENDOR Spectroscopy on Semiconductor Quantum Dots [J].

Baranov, Pavel G. ;

Orlinskii, Sergei B. ;

Donega, Celso de Mello ;

Schmidt, Jan .

APPLIED MAGNETIC RESONANCE, 2010, 39 (1-2) :151-183

[3] Competing exchange interactions in Co-doped ZnO: Departure from the superexchange picture [J].

D'Ambrosio, S. ;

Pashchenko, V. ;

Mignot, J. -M. ;

Ignatchik, O. ;

Kuzian, R. O. ;

Savoyant, A. ;

Golacki, Z. ;

Grasza, K. ;

Stepanov, A. .

PHYSICAL REVIEW B, 2012, 86 (03)

[4] Electron paramagnetic resonance study of Zn1-xCoxO:: A predicted high-temperature ferromagnetic semiconductor -: art. no. 041308 [J].

Jedrecy, N ;

von Bardeleben, HJ ;

Zheng, Y ;

Cantin, JL .

PHYSICAL REVIEW B, 2004, 69 (04)

[5] Quantum oscillations in magnetically doped colloidal nanocrystals [J].

Ochsenbein, Stefan T. ;

Gamelin, Daniel R. .

NATURE NANOTECHNOLOGY, 2011, 6 (02) :111-114

[6] Surface modification of Co-doped ZnO nanocrystals and its effects on the magnetic properties [J].

Pereira, A. S. ;

Ankiewicz, A. O. ;

Gehlhoff, W. ;

Hoffmann, A. ;

Pereira, S. ;

Trindade, T. ;

Grundmann, M. ;

Carmo, M. C. ;

Sobolev, N. A. .

JOURNAL OF APPLIED PHYSICS, 2008, 103 (07)

[7] Antiferromagnetic interactions in single crystalline Zn1-xCoxO thin films [J].

Sati, P. ;

Deparis, C. ;

Morhain, C. ;

Schafer, S. ;

Stepanov, A. .

PHYSICAL REVIEW LETTERS, 2007, 98 (13)

[8]

SCHNEIDER J, 1963, Z NATURFORSCH PT A, VA 18, P980

[9] Synthesis and characterization of ZnO:Co2+ nanoparticles [J].

Volbers, N. ;

Zhou, H. ;

Knies, C. ;

Pfisterer, D. ;

Sann, J. ;

Hofmann, D. M. ;

Meyer, B. K. .

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2007, 88 (01) :153-155

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