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Record W2010396856 · doi:10.1063/1.3087748

Nonlinear electromagnetic response of ferromagnetic metals: Magnetoimpedance in microwires

2009· article· en· W2010396856 on OpenAlex
D. Seddaoui, David Ménard, B. Movaghar, A. Yelon

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

affAt least one author lists a Canadian institution in the pinned OpenAlex snapshot.
fundA Canadian funder is recorded on the work.

Bibliographic record

VenueJournal of Applied Physics · 2009
Typearticle
Languageen
FieldEngineering
TopicMetallic Glasses and Amorphous Alloys
Canadian institutionsPolytechnique MontréalRegroupement Québécois sur les Matériaux de Pointe
FundersNatural Sciences and Engineering Research Council of Canada
KeywordsCondensed matter physicsHarmonicsNonlinear systemFerromagnetismMaterials scienceMagnetizationGiant magnetoimpedanceAnisotropyMagnetic anisotropyMaxwell's equationsFerromagnetic resonanceAmorphous solidPhysicsMagnetoresistanceGiant magnetoresistanceMagnetic fieldVoltageClassical mechanicsOpticsChemistry

Abstract

fetched live from OpenAlex

Numerical calculations based on simultaneous solution of the Maxwell and Landau–Lifshitz equations were performed, in order to study the voltage response of ferromagnetic conductors carrying ac current. Since no significant approximations are made in the calculations, the model yields both linear and nonlinear giant magnetoimpedance (GMI) behavior and low and high power ferromagnetic resonance. Application to nonlinear GMI in ideal wires, with regions of uniform anisotropy, allows us to understand many aspects of the observed behavior and to predict phenomena such as solitary-wave-like propagation of the magnetization at fairly high current amplitude. Using appropriate magnetic structure, we were able to reproduce, with good agreement, the experimental observations for cobalt rich amorphous microwires. We have also found that even harmonics of GMI signal are very sensitive to the domain structure of the wire, whereas the odd harmonics are not.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.000
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesnone
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.105
Threshold uncertainty score0.675

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0000.000
Meta-epidemiology (narrow)0.0000.000
Meta-epidemiology (broad)0.0000.000
Bibliometrics0.0000.000
Science and technology studies0.0000.000
Scholarly communication0.0000.000
Open science0.0000.000
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0000.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.008
GPT teacher head0.216
Teacher spread0.208 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it