Granular Co‐Ag materials with low Co contents exhibit giant magnetoresistance and single‐domain magnetic properties. In this paper, we discuss unusual hysteresis behavior that we have observed in Co‐rich samples, where the magnetization is approximately linear with the applied field up to saturation, and the coercivity and remnant magnetization are both nearly zero. We attribute this unusual behavior to a perpendicular anisotropy that depends on the nanostructure in the phase‐segregated materials. These results are corroborated by magnetic domain imaging using scanning electron microscopy with polarization analysis.

Observation of perpendicular anisotropy in granular magnetic solids

We have investigated the field dependence of the magnetoresistance, Hall effect, thermal conductivity and thermoelectric power on Co-Ag granular films made by electron gun evaporation under ultrahigh-vacuum conditions A large field dependence correlated with the giant magnetoresistance is observed in all the transport properties The dependence is anisotropic for 42at% Co-Ag between parallel and perpendicular fields At zero field, a resistivity minimum is found that varies with annealing temperature The behaviours of the magnetothermal conductivity and the magnetothermoelectric power are generally consistent with previous studies The extraordinary Hall resistivity exhibits an anomalous field dependence and changes sign with temperature

Transport properties in granular Co-Ag alloys

Transport properties in CoCu granular alloy

A brief review of the present stage of transport measurements, such as the Hall effect, thermoelectric power and thermal conductivity, on magnetic multilayers and granular alloys exhibiting the giant magnetoresistance effect is presented. The information obtained from the simultaneous measurement of these properties and the magnetoresistance and magnetization is discussed.

Field dependence of transport properties correlated with the giant magnetoresistance

A phenomenological derivation of the transport equations for ferromagnetic moments and associated energy and heat is proposed. The model describes the transfer of energy through an interface composed of a ferromagnetic insulator in contact with normal electrodes. A reduction method applied to the ferromagnetic degrees of freedom allows a two-channel model to be defined for the transport of magnetic moments. It is shown that a heat current flowing into the insulating ferromagnet-produced e.g. by electromagnetic resonance, thermal gradient, magneto-mechanical or magneto-optical excitations-can generate a magneto-voltaic potential and a pure spin-current in the non-ferromagnetic electrode.

https://iopscience.iop.org/article/10.1088/0953-8984/25/36/366003/pdf

Transport equations of energy for ferromagnetic insulators in contact with electrodes.

Thermal and thermoelectric properties of granular Co-Ag solids

Handle everyday research tasks with reliable, citation-backed results

Your personal Research Agent to handle research tasks with citation-backed results

Popular Tasks used by Researchers

How can I help with your research?

Meet SciSpace

Get more enhanced response by uploading the PDFs you want me to reference.

No relevant PDFs in your library

SciSpace is the AI research assistant for academics. Run systematic literature reviews on 280M+ papers, and write papers with cited sources. Trusted by 1M+ students, PhDs & researchers.

SciSpace | AI for Research

Analyze PDFs

Code & Manuscripts

Funding & Grants

Literature & Patents

Medical & Clinical Data

Systematic Review

Visualize & Present

Web & Data

Build a Google Scholar-like website for your research.

Build a website

Create charts and images for your research

Create a Chart

Write a paper for submission to a journal

Draft a manuscript

Patent Search

Design eye-catching scientific posters in minutes.

Scientific Poster Generation

Systematic Literature Review

One task is running at the moment. Your messages will be shown right after.

Drag and drop or click here to browse

Loved by <highlight>1 million+</highlight> researchers

Extract a list of specific topics and their sources from unstructured text

Topics

Compare and analyze relevant papers that matches with your search

Papers

Get insights from PDFs and bookmarked papers from your library

My library

Recent searches

Try searching for:

Catch AI-generated content in scholarly and non-scholarly content

{ai} Detector

Ai Writer

Get PDF Summaries, highlighted text explanations 

Chat with PDF

Effortlessly create in-text citations and bibliographies in APA and 2,500 other formats

Citation generator

Get explanations, summaries, and answers on academic papers

Ease up your research workflow with {scispace}'s cohort of exciting AI tools

Elevate your academic writing skills and convey your ideas the way you want

Paraphraser

Explore our range of reading and writing tools

Your file is being prepared and should be ready in a few minutes. If it's a large file, it might take a bit longer. You can close this window, and we'll email you the file when it's done.

You have reached a maximum limit of <strong>{limit}</strong> columns in the table. Remove at least <strong>1</strong> column to add or create another one.

Js. Jiang

Author Tools

Chat about Author

Papers

Thermal and thermoelectric properties of granular Co-Ag solids