Structures and magnetic properties of Co and CoFe films prepared by magnetron sputtering

Lin, Cheng Huang; Chen, W. H.; Tsay, Jyh-Jong; Hong, Insic; Chiu, Chien‐Liang; Huang, Hao

doi:10.1016/j.tsf.2011.03.091

Cited by 19 publications

(15 citation statements)

References 25 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The surface roughness shows a minimum at 20 nm. This tendency is also observed by Lin et al [7] for Co 40 Fe 60 obtained by RF magnetron sputtering.…”

Section: A Microanalysissupporting

confidence: 82%

“…Our results are slightly better than those found in Ref. [7] Co but the precision on Co content (targeted to be 65%) was poor due to the existence of an anomalous codeposition during the electrodeposition process [1]. The low value of H c and high magnetization at saturation, together with high magnetization at remanence is very interesting in the view of developing sensors active layers or for highfrequency applications [26].…”

Section: E Magnetic Behaviorcontrasting

confidence: 55%

“…Sputtering and molecular beam epitaxy require high or ultrahigh vacuum [6]. Apart from having separate targets that can affect reproducibility [7], the high magnetization of FeCo targets strongly interferes with the magnetic field generated by magnetron sputtering systems and reduces severely the efficiency of the magnetron system and affect the homogeneity of the films [8,9,10]. Electrodeposition is a low cost method but requires continuous control and regulation, especially for alloys where much more complex process is needed [11,12].…”

Section: Microstructural Electrical and Magnetic Properties Ofmentioning

confidence: 99%

See 2 more Smart Citations

Microstructural, electrical and magnetic properties of Fe35Co65 thin films grown by thermal evaporation from mechanically alloyed powders

et al. 2014

View full text Add to dashboard Cite

We present a detailed study of the microstructural, electrical and magnetic properties of Fe 35 Co 65 thin films deposited by thermal evaporation using nanocrystalline mixture. The nanocrystalline Fe 35 Co 65 powder was prepared by mechanical alloying process using high energy ball milling and then carefully studied. Good homogeneity, purity and stoichiometry were demonstrated in the powder composed of 25 nm mean crystallite size. Microstuctural analysis of Fe 35 Co 65 thin films ranging from 9 to 50 nm deposited on Si (001) shows that the stoichiometry is conserved over the whole thickness range and that (110) texture forms as the film thickness increases. Our work finally demonstrates that high saturation magnetization, low coercivity and high electrical resistivity FeCo thin films can be achieved by thermal evaporation from properly set mechanical alloying powder.

show abstract

“…The surface roughness shows a minimum at 20 nm. This tendency is also observed by Lin et al [7] for Co 40 Fe 60 obtained by RF magnetron sputtering.…”

Section: A Microanalysissupporting

confidence: 82%

Section: E Magnetic Behaviorcontrasting

confidence: 55%

Section: Microstructural Electrical and Magnetic Properties Ofmentioning

confidence: 99%

See 1 more Smart Citation

Microstructural, electrical and magnetic properties of Fe35Co65 thin films grown by thermal evaporation from mechanically alloyed powders

et al. 2014

View full text Add to dashboard Cite

show abstract

“…The recording regions on MO disk are made by the MO data storage system before MFM scanning. Deposition of the Co films on Si(100) substrates was performed by a radio‐frequency magnetron sputtering process, which has already been described in detail elsewhere (Hsu et al, ; Jiao et al, ; Lin et al, ). The Co (99.99% purity) target was pre‐sputtered for 10 min when the base pressure was less than 3 × 10 −8 Torr using argon (99.9995% purity) as the sputtering gas.…”

Section: Methodsmentioning

confidence: 99%

Magnetic domain imaging of nano-magnetic films using magnetic force microscopy with polar and longitudinally magnetized tips

Chen

Chang

et al. 2016

Microsc. Res. Tech.

View full text Add to dashboard Cite

Perpendicular or parallel magnetic fields are used to magnetize the tips used in magnetic force microscopy (MFM). In this process, perpendicular or parallel magnetic dipole moments are produced on the tip plane, thus leading to the formation of polar magnetized tips (PM-tips) or longitudinally magnetized tips (LM-tips), respectively. The resolution of an MFM image of a magneto-optic disk is used for calibration of these tips, and the saturated magnetic fields of the PM- and LM-tips are found to be 2720 Oe and 680 Oe, respectively. Because both tips can simultaneously magnetize the sample during the scanning process when measuring a Co thin film, clear MFM images are captured, which enable the identification of magnetizable regions and the distribution of the magnetic domains on the sample surface. These results will be useful for improving the manufacturing processes required for soft nano-magnetic film production.

show abstract

“…Aunque existe un buen número de trabajos experimentales [4], no se han realizado muchos estudios teóricos de modelamiento y simulación que permitan comprender la fenomenología que gobierna el comportamiento de estos materiales. Una de las técnicas más empleadas para hacer este tipo de simulaciones es el método de Monte Carlo.…”

Section: Introductionunclassified

Modelamiento de propiedades magnéticas de aleaciones FeCox en películas delgadas

Narvaez

2017

Sci. tech

View full text Add to dashboard Cite

Se realizaron simulaciones de aleaciones de Fe1-xCox en forma de películas delgadas empleando el método de Monte Carlo y el modelo de Heisenberg, con el fin de observar las variaciones de las propiedades magnéticas, la temperatura de transición y el campo coercitivo a medida que se varía la concentración de cobalto (x). Para la construcción de las muestras se emplearon condiciones semi-periódicas. Se empleó además un Hamiltoniano que contiene términos correspondientes a la interacción entre primeros vecinos, y el término Zeeman. Dentro de la interacción entre primeros vecinos se consideraron tres tipos de constantes de intercambio: Fe-Fe, Fe-Co y Co-Co. Además, se ubicaron átomos de cobalto aleatoriamente dentro de la red cristalina BCC de Fe. Se observó que tanto la temperatura crítica como el campo coercitivo tienden a disminuir a medida que se incrementa x.

show abstract

Structures and magnetic properties of Co and CoFe films prepared by magnetron sputtering

Cited by 19 publications

References 25 publications

Microstructural, electrical and magnetic properties of Fe35Co65 thin films grown by thermal evaporation from mechanically alloyed powders

Microstructural, electrical and magnetic properties of Fe35Co65 thin films grown by thermal evaporation from mechanically alloyed powders

Magnetic domain imaging of nano-magnetic films using magnetic force microscopy with polar and longitudinally magnetized tips

Modelamiento de propiedades magnéticas de aleaciones FeCox en películas delgadas

Contact Info

Product

Resources

About