Near-surface magnetic properties and giant magnetoimpedance of Co-based amorphous ribbons

Shalyguina, E.E.; Komarova, M.A.; Molokanov, V. V.; Kim, Chong-Oh; Kim, CheolGi; Rheem, Youngwoo

doi:10.1016/s0304-8853(02)01037-5

Cited by 12 publications

(10 citation statements)

References 8 publications

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“…It was discovered that in contrast to amorphous materials [9], the near-surface and bulk magnitudes of the coercivity H C and the saturation field H S of all Fe-Zr-N films differ insignificantly. In particular, the values of H C SURF and H S SURF are higher at 1.1-1.2 times than the bulk ones.…”

Section: Resultsmentioning

confidence: 98%

Annealing effect on magnetostatic properties of nanocomposite Fe‐Zr‐N films

Shalyguina

Sheftel

Усманова

et al. 2007

Phys. Status Solidi (c)

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Results on the investigation of the magnetic properties and microstructure of the as-deposited and annealed at T = 200-700 o C Fe-Zr-N films are presented. The Fe-Zr-N films with the 0.7-µm thickness were deposited by RF sputtering onto glass square substrates. Structural properties of the films were studied by means of the X-ray diffraction technique. The bulk magnetic characteristics of the films have been measured by a vibrating sample magnetometer (VSM). The study of the near-surface magnetic properties of the Fe-Zr-N samples was carried out employing magneto-optical micromagnetometer with a surface sensitivity of about 20 nm of the thickness depth. The strong annealing effect on the values of the coercivity H C and the saturation field H S of the films was revealed. The values of H C and H S of the films, annealed at T = 450 and 500 o C, were found to be minimal. The temperature dependences of H C and H S were explained by microstructure changes of the studied films after their post-deposition heat treatment.

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Section: Resultsmentioning

confidence: 98%

Annealing effect on magnetostatic properties of nanocomposite Fe‐Zr‐N films

Shalyguina

Sheftel

Усманова

et al. 2007

Phys. Status Solidi (c)

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“…Therefore magneto-optical Kerr effect (MOKE) is widely used for characterization of soft amorphous ribbons [4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Magnetic and magneto-optical properties of CoFeCrSiB amorphous ribbons

Životský

Postava

Kraus

et al. 2006

Journal of Magnetism and Magnetic Materials

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“…It has been shown that the asymmetry of the GMI profile is related to the hard magnetic crystalline layer, which appears due to the surface crystallization of a ribbon after the field annealing [9,13,14]. Although the effect has been studied experimentally quite well, the satisfactory theoretical explanation is still missing.…”

Section: Introductionmentioning

confidence: 99%

Modeling of asymmetric giant magnetoimpedance in amorphous ribbons with a surface crystalline layer

Buznikov¹,

Kim²,

Kim³

et al. 2005

Journal of Magnetism and Magnetic Materials

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A model describing the asymmetric giant magnetoimpedance (GMI) in field-annealed amorphous ribbons is proposed. It is assumed that the ribbon consists of an inner amorphous core and surface hard magnetic crystalline layers. The model is based on a simultaneous solution of linearizied Maxwell equations and Landau-Lifshitz equation. The coupling between the surface layers and the amorphous core is described in terms of an effective bias field. Analytical expressions for the frequency and field dependences of the ribbon impedance are found. The calculated dependences are in a qualitative agreement with results of experimental studies of the high-frequency asymmetric giant GMI in field-annealed amorphous ribbons.

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Near-surface magnetic properties and giant magnetoimpedance of Co-based amorphous ribbons

Cited by 12 publications

References 8 publications

Annealing effect on magnetostatic properties of nanocomposite Fe‐Zr‐N films

Annealing effect on magnetostatic properties of nanocomposite Fe‐Zr‐N films

Magnetic and magneto-optical properties of CoFeCrSiB amorphous ribbons

Modeling of asymmetric giant magnetoimpedance in amorphous ribbons with a surface crystalline layer

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