Tuning the magnetic properties of Zn1-xCoxO films
Abstract
We compare the magnetic properties of two types of Co-doped ZnO films grown on sapphire with distinct structural quality. SQUID magnetometry as well as element-specific synchrotron studies reveal pure paramagnetic behavior for the samples with the highest structural quality, whereas samples with reduced structural quality exhibit superparamagnetic blocking behavior. In this sample signatures of phase separation are detected by X-ray diffraction and X-ray linear dichroism which accounts for the superparamagnetic blocking.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1019221
- Report Number(s):
- PNNL-SA-71939
Journal ID: ISSN 0304-8853; JMMMDC; 35200; KC0201050; TRN: US201114%%696
- DOE Contract Number:
- AC05-76RL01830
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Magnetism and Magnetic Materials, 322(9-12):1232-1234
- Additional Journal Information:
- Journal Volume: 322; Journal Issue: 9-12; Journal ID: ISSN 0304-8853
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; DICHROISM; MAGNETIC PROPERTIES; SAPPHIRE; SYNCHROTRONS; TUNING; X-RAY DIFFRACTION; Environmental Molecular Sciences Laboratory
Citation Formats
Ney, V, Ye, S, Kammermeier, T, Ollefs, K, Ney, A, Kaspar, Tiffany C, Chambers, Scott A, Wilhelm, F, and Rogalev, A. Tuning the magnetic properties of Zn1-xCoxO films. United States: N. p., 2010.
Web. doi:10.1016/j.jmmm.2009.04.024.
Ney, V, Ye, S, Kammermeier, T, Ollefs, K, Ney, A, Kaspar, Tiffany C, Chambers, Scott A, Wilhelm, F, & Rogalev, A. Tuning the magnetic properties of Zn1-xCoxO films. United States. https://doi.org/10.1016/j.jmmm.2009.04.024
Ney, V, Ye, S, Kammermeier, T, Ollefs, K, Ney, A, Kaspar, Tiffany C, Chambers, Scott A, Wilhelm, F, and Rogalev, A. 2010.
"Tuning the magnetic properties of Zn1-xCoxO films". United States. https://doi.org/10.1016/j.jmmm.2009.04.024.
@article{osti_1019221,
title = {Tuning the magnetic properties of Zn1-xCoxO films},
author = {Ney, V and Ye, S and Kammermeier, T and Ollefs, K and Ney, A and Kaspar, Tiffany C and Chambers, Scott A and Wilhelm, F and Rogalev, A},
abstractNote = {We compare the magnetic properties of two types of Co-doped ZnO films grown on sapphire with distinct structural quality. SQUID magnetometry as well as element-specific synchrotron studies reveal pure paramagnetic behavior for the samples with the highest structural quality, whereas samples with reduced structural quality exhibit superparamagnetic blocking behavior. In this sample signatures of phase separation are detected by X-ray diffraction and X-ray linear dichroism which accounts for the superparamagnetic blocking.},
doi = {10.1016/j.jmmm.2009.04.024},
url = {https://www.osti.gov/biblio/1019221},
journal = {Journal of Magnetism and Magnetic Materials, 322(9-12):1232-1234},
issn = {0304-8853},
number = 9-12,
volume = 322,
place = {United States},
year = {Tue Jun 01 00:00:00 EDT 2010},
month = {Tue Jun 01 00:00:00 EDT 2010}
}
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