Electron spin resonance of Zn{sub 1-x}Mg{sub x}O thin films grown by plasma-assisted molecular beam epitaxy

Journal Article · Mon Aug 30 00:00:00 EDT 2010 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3477951· OSTI ID:21466911

Wassner, T A; Stutzmann, M; Brandt, M S ^[1]; Laumer, B ^[1]; Althammer, M; Goennenwein, S T. B. ^[2]; Eickhoff, M ^[3]

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1. Walter Schottky Institut, Technische Universitaet Muenchen, Am Coulombwall 3, 85748 Garching (Germany)
2. Walther-Meissner-Institut, Bayerische Akademie der Wissenschaften, Walther-Meissner-Str. 8, 85748 Garching (Germany)
3. I. Physikalisches Institut, Justus-Liebig-Universitaet, Heinrich-Buff-Ring 16, 35392 Giessen (Germany)

Zn{sub 1-x}Mg{sub x}O thin films with a Mg content x between 0 and 0.42 grown by plasma-assisted molecular beam epitaxy on c-plane sapphire substrates were investigated by electron spin resonance at 5 K. Above band gap illumination induces a persistent resonance signal, which is attributed to free conduction band electrons. The g-factors of the Zn{sub 1-x}Mg{sub x}O epitaxial layers and their anisotropy were determined experimentally and an increase from g{sub ||}=1.957 for x=0 to g{sub ||}=1.970 for x=0.42 was found, accompanied by a decrease in anisotropy. A comparison with g-factors of the Al{sub x}Ga{sub 1-x}N system is also given.

• OSTI ID: 21466911
• Journal Information: Applied Physics Letters, Vol. 97, Issue 9; Other Information: DOI: 10.1063/1.3477951; (c) 2010 American Institute of Physics; ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANISOTROPY
COMPARATIVE EVALUATIONS
CONCENTRATION RATIO
CRYSTAL GROWTH
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
ELECTRONS
ENERGY GAP
LANDE FACTOR
LAYERS
MAGNESIUM OXIDES
MOLECULAR BEAM EPITAXY
PARAMAGNETISM
PLASMA
SAPPHIRE
SEMICONDUCTOR MATERIALS
SUBSTRATES
THIN FILMS
ZINC COMPOUNDS
ALKALINE EARTH METAL COMPOUNDS
CHALCOGENIDES
CORUNDUM
CRYSTAL GROWTH METHODS
DIMENSIONLESS NUMBERS
ELEMENTARY PARTICLES
EPITAXY
EVALUATION
FERMIONS
FILMS
LEPTONS
MAGNESIUM COMPOUNDS
MAGNETIC RESONANCE
MAGNETISM
MATERIALS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RESONANCE