Static and dynamic magnetic properties of (CoZr)100−<i>x</i>(RE)<i>x</i> amorphous thin films

Suran, G.; Ouahmane, H.; Rivoire, M.; Sztern, J.

doi:10.1063/1.353603

Cited by 17 publications

(7 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We reported some of the basic magnetic properties of these films in recent publications [5], [6] so only a short summary of it is given here. Along the hard axis a very well defined uniaxial anisotropy is detected.…”

Section: In Results and Discussionmentioning

confidence: 99%

Correlations between the in-plane uniaxial anisotropy and magnetostriction in amorphous (Co/sub 93/Zr/sub 7/)/sub 100-x/(RE)/sub x/ thin films

Suran¹,

Ouahmane²,

Żuberek³

1994

IEEE Trans. Magn.

Self Cite

View full text Add to dashboard Cite

The coherent anisotropy and the magnetostriction constants A, were studied in amorphous r.f. sputtered (Co,Zr,) , , ( R E ) ? (RE = rare earth) thin films for a large variety of magnetic rare earth, and the concentration range 0 I x 13. During the deposition magnetic field of 700 Oe was applied in the film plane. For RE = Nd, Pr, Jly and Tb substitutions, a well defined in-plane uniaxial anisotropy is formed. K,, and A, both increase linearly with increasing RE content, the absolute values being related to the substitutional RE element. The magnitude of K,, correlates nicely with that of A,, in agreement with a theoretical computation based on asingle-ion anisotropy model for rare-earth atoms. When RE=Sm a more heterogeneous local magnetic structure forms as revealed by a biaxial anisotropy and the correlation between K,, and X, is no more observed.

show abstract

Section: In Results and Discussionmentioning

confidence: 99%

Correlations between the in-plane uniaxial anisotropy and magnetostriction in amorphous (Co/sub 93/Zr/sub 7/)/sub 100-x/(RE)/sub x/ thin films

Suran¹,

Ouahmane²,

Żuberek³

1994

IEEE Trans. Magn.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the present work, we report the principle and the various potentialities of a new preparation technique. It is based upon an investigation, that if a DC magnetic field HDC is applied in the plane of an a-Co95-xZr5(RE)x film during sputter deposition, a uniaxial anisotropy is formed the direction of which depend upon the RE substituted, a study made for a low RE content (0 <x ≤ 4 ) [2]. When the RE was Pr, Nd, Dy or Tb, an in-plane uniaxial anisotropy Ku developed with its easy axis parallel to HDC.…”

Section: Introductionmentioning

confidence: 99%

Properties of amorphous CoZr(RE) (RE=Gd, Sm, Dy) films with various uniaxial anisotropies, prepared by a new process

Shin¹,

Niedoba²,

Henry³

et al. 2002

Journal of Magnetism and Magnetic Materials

View full text Add to dashboard Cite

If a DC magnetic field is applied parallel to the plane of amorphous CoZr(RE) thin films during sputter depositing, uniaxial anisotropy is formed the direction of which depends upon the choice of RE substituted and its concentration. When RE = Gd a perpendicular anisotropy Kp forms over a large concentration range, a spin reorientation process being at the origin of the process. A well-defined Kp is developed also in CoFeZrGd and CoZrGdSm films. CoZrGdDy films exhibit simultaneously a perpendicular and an in-plane uniaxial anisotropy. The related magnetization process and domain structures are quite peculiar.

show abstract

“…In particular, amorphous CoZrRE thin films are promising candidates to be employed in magnetic heads as they exhibit good frequency response of the permeability, 2 high saturation magnetization, low coercivity, low magnetostriction, 3 good mechanical properties 4 and, if prepared in adequate conditions, a very well defined in-plane uniaxial anisotropy K u . 5,6 On the other hand, the films under study in the present article are very interesting to analyze the physical origin of in-plane uniaxial anisotropy (K u ) in thin films.…”

Section: Introductionmentioning

confidence: 99%

Induced and local anisotropies in amorphous CoZr–rare earth thin films containing Pr, Nd, and Tb

Calleja

Corrales

Rivas

et al. 1996

Journal of Applied Physics

Self Cite

View full text Add to dashboard Cite

Articles you may be interested inFluctuation field and time dependence of magnetization in TbFeCo amorphous rare earth-transition metal thin films for perpendicular magnetic recordingThe induced in-plane and local magnetic anisotropies of rf sputtered ͑Co 93 Zr 7 ͒ 100Ϫx RE x thin films were investigated as a function of RE content for REϭPr, Nd, and Tb by transverse biased initial susceptibility measurements at both film/air and glass/film interfaces. The deposition was performed in a magnetic field. The films exhibit a very well defined in-plane anisotropy with negligible long-range fluctuations and a small coercive field H c , in accordance with the experimental data. The overall variations of the transverse susceptibility are related to the ripple. The variations of the local anisotropy with composition were measured. Both the induced anisotropy K u and the local anisotropy K loc increase with the increasing amount of RE in the layers. A clear relationship between K u and K loc could be established. The results are discussed in terms of the single-ion anisotropy of the rare earth. While the value of K u is the same at both interfaces, the ripple constants were found to be slightly different. This last result is believed to be related to some local defects, the origin of which is also suggested. Also the coercive force is discussed and explained in terms of a theoretical model.

show abstract

Static and dynamic magnetic properties of (CoZr)100−x(RE)x amorphous thin films

Abstract: The saturation magnetization, uniaxial anisotropy, and the dynamical magnetic properties of amorphous ( Co,,Zrs j loo.. .~ (RE), thin films have been studied for various magnetic rare earths and for 0 Show more

Cited by 17 publications

References 9 publications

Correlations between the in-plane uniaxial anisotropy and magnetostriction in amorphous (Co/sub 93/Zr/sub 7/)/sub 100-x/(RE)/sub x/ thin films

Correlations between the in-plane uniaxial anisotropy and magnetostriction in amorphous (Co/sub 93/Zr/sub 7/)/sub 100-x/(RE)/sub x/ thin films

Properties of amorphous CoZr(RE) (RE=Gd, Sm, Dy) films with various uniaxial anisotropies, prepared by a new process

Induced and local anisotropies in amorphous CoZr–rare earth thin films containing Pr, Nd, and Tb

Contact Info

Product

Resources

About