Abstract
A multisegment structure of Co/Cu nanowires with tunable perpendicular anisotropy, associated with phase transformation, was fabricated. The mixed crystal structure, formed by doping nano grains of the hcp phase into the fcc phase in the cobalt structure, markedly improves the perpendicular anisotropy. Cobalt nano grains with the hcp phase with a preferred orientation, which were transformed from (100) to (002), by doping fcc nano grain with high preferred (111) orientation and additionally the effective magnetocrystalline energy density of mixed structure was increased, the perpendicular magnetic anisotropy can be enhanced and tunable. The magnetoresistance ratios along the parallel and perpendicular axes of nanowires are 23.4% and 7.2% respectively. This novel approach promises to be of strong interest for subsequent fabrication of phase-locked arrays of spin transfer nano-oscillators with increased output power for microwave applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1609-1620 |
| Number of pages | 12 |
| Journal | Journal of Electromagnetic Waves and Applications |
| Volume | 24 |
| Issue number | 11-12 |
| DOIs | |
| Publication status | Published - 2010 Jul 1 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Physics and Astronomy(all)
- Electrical and Electronic Engineering
Cite this
Enhancement of perpendicular anisotropy of Co/Cu multilayer nanowires by phase doping. / Chen, P. Y.; Hu, S. F.; Huang, C. Y.; Liu, R. S.
In: Journal of Electromagnetic Waves and Applications, Vol. 24, No. 11-12, 01.07.2010, p. 1609-1620.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Enhancement of perpendicular anisotropy of Co/Cu multilayer nanowires by phase doping
AU - Chen, P. Y.
AU - Hu, S. F.
AU - Huang, C. Y.
AU - Liu, R. S.
PY - 2010/7/1
Y1 - 2010/7/1
N2 - A multisegment structure of Co/Cu nanowires with tunable perpendicular anisotropy, associated with phase transformation, was fabricated. The mixed crystal structure, formed by doping nano grains of the hcp phase into the fcc phase in the cobalt structure, markedly improves the perpendicular anisotropy. Cobalt nano grains with the hcp phase with a preferred orientation, which were transformed from (100) to (002), by doping fcc nano grain with high preferred (111) orientation and additionally the effective magnetocrystalline energy density of mixed structure was increased, the perpendicular magnetic anisotropy can be enhanced and tunable. The magnetoresistance ratios along the parallel and perpendicular axes of nanowires are 23.4% and 7.2% respectively. This novel approach promises to be of strong interest for subsequent fabrication of phase-locked arrays of spin transfer nano-oscillators with increased output power for microwave applications.
AB - A multisegment structure of Co/Cu nanowires with tunable perpendicular anisotropy, associated with phase transformation, was fabricated. The mixed crystal structure, formed by doping nano grains of the hcp phase into the fcc phase in the cobalt structure, markedly improves the perpendicular anisotropy. Cobalt nano grains with the hcp phase with a preferred orientation, which were transformed from (100) to (002), by doping fcc nano grain with high preferred (111) orientation and additionally the effective magnetocrystalline energy density of mixed structure was increased, the perpendicular magnetic anisotropy can be enhanced and tunable. The magnetoresistance ratios along the parallel and perpendicular axes of nanowires are 23.4% and 7.2% respectively. This novel approach promises to be of strong interest for subsequent fabrication of phase-locked arrays of spin transfer nano-oscillators with increased output power for microwave applications.
UR - http://www.scopus.com/inward/record.url?scp=77955440411&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77955440411&partnerID=8YFLogxK
U2 - 10.1163/156939310792149605
DO - 10.1163/156939310792149605
M3 - Article
AN - SCOPUS:77955440411
VL - 24
SP - 1609
EP - 1620
JO - Journal of Electromagnetic Waves and Applications
JF - Journal of Electromagnetic Waves and Applications
SN - 0920-5071
IS - 11-12
ER -