Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal
Abstract
Chromium (Cr) forms a solid solution with iron (Fe) lattice when doped in core-shell iron -iron oxide nanocluster (NC) and shows a mixed phase of sigma (σ) FeCr and bcc Fe. The Cr dopant affects heavily the magnetization and magnetic reversal process, and causes the hysteresis loop to shrink near the zero field axis. Dramatic transformation happens from dipolar interaction (0 at. % Cr) to strong exchange interaction (8 at. % of Cr) is confirmed from the Henkel plot and delta M plot, and is explained by a water-melon model of core-shell NC system.
- Authors:
- Publication Date:
- Research Org.:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1091456
- Report Number(s):
- PNNL-SA-91331
44713; KP1704020
- DOE Contract Number:
- AC05-76RL01830
- Resource Type:
- Journal Article
- Journal Name:
- Nanoscale, 5(17):7872-7881
- Additional Journal Information:
- Journal Name: Nanoscale, 5(17):7872-7881
- Country of Publication:
- United States
- Language:
- English
- Subject:
- Environmental Molecular Sciences Laboratory
Citation Formats
Kaur, Maninder, Dai, Qilin, Bowden, Mark E., Engelhard, Mark H., Wu, Yaqiao, Tang, Jinke, and Qiang, You. Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal. United States: N. p., 2013.
Web. doi:10.1039/C3NR02247A.
Kaur, Maninder, Dai, Qilin, Bowden, Mark E., Engelhard, Mark H., Wu, Yaqiao, Tang, Jinke, & Qiang, You. Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal. United States. https://doi.org/10.1039/C3NR02247A
Kaur, Maninder, Dai, Qilin, Bowden, Mark E., Engelhard, Mark H., Wu, Yaqiao, Tang, Jinke, and Qiang, You. 2013.
"Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal". United States. https://doi.org/10.1039/C3NR02247A.
@article{osti_1091456,
title = {Watermelon-like iron nanoparticles: Cr doping effect on magnetism and magnetization interaction reversal},
author = {Kaur, Maninder and Dai, Qilin and Bowden, Mark E. and Engelhard, Mark H. and Wu, Yaqiao and Tang, Jinke and Qiang, You},
abstractNote = {Chromium (Cr) forms a solid solution with iron (Fe) lattice when doped in core-shell iron -iron oxide nanocluster (NC) and shows a mixed phase of sigma (σ) FeCr and bcc Fe. The Cr dopant affects heavily the magnetization and magnetic reversal process, and causes the hysteresis loop to shrink near the zero field axis. Dramatic transformation happens from dipolar interaction (0 at. % Cr) to strong exchange interaction (8 at. % of Cr) is confirmed from the Henkel plot and delta M plot, and is explained by a water-melon model of core-shell NC system.},
doi = {10.1039/C3NR02247A},
url = {https://www.osti.gov/biblio/1091456},
journal = {Nanoscale, 5(17):7872-7881},
number = ,
volume = ,
place = {United States},
year = {Wed Jun 26 00:00:00 EDT 2013},
month = {Wed Jun 26 00:00:00 EDT 2013}
}
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