Publication Type |
Journal Article |
School or College |
College of Engineering |
Department |
Materials Science & Engineering |
Creator |
Tiwari, Ashutosh |
Other Author |
Kumar, D.; Pennycook, S. J.; Lupini, A.; Duscher, G.; Narayan, J. |
Title |
Synthesis and atomic-level characterization of Ni nanoparticles in Al2O3 matrix |
Date |
2002 |
Description |
Single domain magnetic nickel nanocrystals were embedded in alumina matrix using a pulsed-laser deposition technique. Structural characterization carried out at the atomic level using scanning transmission electron microscopy with atomic number contrast (STEM-Z) in conjunction with electron energy loss spectroscopy have revealed that the Ni particles are well separated and have interfaces with the host matrix that are atomically sharp and free of any oxide layer. An excellent correlation was found between particle sizes determined theoretically from magnetization versus field data and experimentally using STEM-Z which indicates the absence of any magnetically dead layers on the Ni nanoparticles within an experimental error of 0.1 monolayer. |
Type |
Text |
Publisher |
American Institute of Physics (AIP) |
Journal Title |
Applied Physics Letters |
Volume |
81 |
Issue |
22 |
First Page |
4204 |
Last Page |
4206 |
DOI |
10.1063/1.1525052 |
citatation_issn |
36951 |
Subject |
Nanophase magnetic materials; Alumina |
Subject LCSH |
Nickel; Nanocrystals; Aluminum oxide; Magnetic materials; Nanomedicine |
Language |
eng |
Bibliographic Citation |
Kumar, D., Pennycook, S. J., Lupini, A., Duscher, G., Tiwari, A., & Narayan, J. (2002). Synthesis and atomic-level characterization of Ni nanoparticles in Al2O3 matrix. Applied Physics Letters, 81(22), 4204-6. |
Rights Management |
(c)American Institute of Physics. The following article appeared in Kumar, D., Pennycook, S. J., Lupini, A., Duscher, G., Tiwari, A., & Narayan, J., Applied Physics Letters, 81(22), 2002 and may be found at http://dx.doi.org/10.1063/1.1525052 |
Format Medium |
application/pdf |
Format Extent |
125,278 bytes |
Identifier |
ir-main,12084 |
ARK |
ark:/87278/s6ff49f3 |
Setname |
ir_uspace |
ID |
702561 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s6ff49f3 |