Temperature dependence of resistance and magnetoresistance of nanogranular Co-Ag films

Gerber, A.; Milner, A.; Korenblit, I. Ya.; Karpovsky, Mark G.; Gladkikh, A.; Sulpice, A.

doi:10.1103/physrevb.57.13667

Cited by 31 publications

(26 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Such a negative MR is typically associated with the magnetic field suppression of spin-disorder scattering. 12,13 Measurements in the longitudinal field geometry ͑with the field at 5°to the film plane͒ are indicated by dashed lines in Fig. 2.…”

Section: Resultsmentioning

confidence: 99%

Magnetotransport and magnetic properties of molecular-beam epitaxy L1 FePt thin films

Ruediger

Kent

et al. 2000

Journal of Applied Physics

View full text Add to dashboard Cite

The magnetotransport and magnetic properties of chemically ordered ͑001͒ L1 0 FePt epitaxial thin films with small scale perpendicularly magnetized stripe domains have been investigated. Film growth conditions are used to systematically vary the degree of chemical order, the magnetic anisotropy, and magnetic domain sizes. The longitudinal and transverse ͑Hall͒ resistivities are correlated with both film chemical order and magnetic properties. The low-field magnetoresistance shows evidence of domain effects. In the highest anisotropy and most chemically ordered film studied, this low field magnetoresistance is consistent with an intrinsic domain wall scattering contribution to the resistivity.

show abstract

Section: Resultsmentioning

confidence: 99%

Magnetotransport and magnetic properties of molecular-beam epitaxy L1 FePt thin films

Ruediger

Kent

et al. 2000

Journal of Applied Physics

View full text Add to dashboard Cite

show abstract

“…This arises from the fact that, in the case of granular systems, the T dependence of MR is complicated by the presence of a distribution of particle sizes that gives rise to blocking processes. Recently, Gerber et al 29 argued that the temperature dependence of GMR could not be explained by scattering of phonons and magnons. Both these scattering mechanisms lead to a saturation of resistivity at low temperature in zero as well as high magnetic fields.…”

Section: Discussionmentioning

confidence: 99%

Magnetic properties of nanoclusters formed by implantation of Fe into Ge using a metal-vapor vacuum arc ion source

et al. 2001

View full text Add to dashboard Cite

The magnetic properties of Fe ions implanted into a germanium crystal by metal-vapor vacuum arc ion source were investigated using a Quantum Design SQUID magnetometer. The presence of Fe nanoclusters in Ge was verified by magnetization measurements. A Langevin fit was used to obtain the size distribution of the clusters. The results demonstrated that the clusters are magnetic. The magnetic behavior of the clusters was characterized by zero-field-cooled and field-cooled measurements for temperatures 4.2 to 300 K. The implanted layer with magnetic clusters shows negative magnetoresistance with a positive magnetoresistance background due to the Ge substrate for parallel magnetic-field geometry at temperatures 180 to 300 K. The negative magnetoresistance is found to become dominant with decrease of temperature. The negative magnetoresistance is attributed to the existence of magnetic clusters in the implanted layer.

show abstract

“…It is worth mentioning that for similar Co content in Co-Ag system the nonmonotonic resistivity temperature dependence was explained using the two-current model without involving a Kondo mechanism [91].…”

Section: Granular Fe-cu Microwiresmentioning

confidence: 99%

Correlation of Crystalline Structure with Magnetic and Transport Properties of Glass-Coated Microwires

et al. 2017

View full text Add to dashboard Cite

Abstract:We overviewed the correlation between the structure, magnetic and transport properties of magnetic microwires prepared by the Taylor-Ulitovsky method involving rapid quenching from the melt and drawing of the composite (metallic core, glass coated) wire. We showed that this method can be useful for the preparation of different families of magnetic microwires: soft magnetic microwires displaying Giant magnetoimpedance (GMI) effect, semi-hard magnetic microwires, microwires with granular structure exhibiting Giant Magnetoresistance (GMR) effect and Heusler-type microwires. Magnetic and transport properties of magnetic microwires depend on the chemical composition of metallic nucleus and on the structural features (grain size, precipitating phases) of prepared microwires. In all families of crystalline microwires, their structure, magnetic and transport properties are affected by internal stresses induced by the glass coating, depending on the quenching rate. Therefore, properties of glass-coated microwires are considerably different from conventional bulk crystalline alloys.

show abstract

Temperature dependence of resistance and magnetoresistance of nanogranular Co-Ag films

Cited by 31 publications

References 22 publications

Magnetotransport and magnetic properties of molecular-beam epitaxy L1 FePt thin films

Magnetotransport and magnetic properties of molecular-beam epitaxy L1 FePt thin films

Magnetic properties of nanoclusters formed by implantation of Fe into Ge using a metal-vapor vacuum arc ion source

Correlation of Crystalline Structure with Magnetic and Transport Properties of Glass-Coated Microwires

Contact Info

Product

Resources

About