MétaCan
Menu
Back to cohort
Record W1972522924 · doi:10.1103/physrevb.68.104425

Electrical transport and magnetotransport studies in WEAK ITINERANT amorphous<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Fe</mml:mi></mml:mrow><mml:mrow><mml:mn>90</mml:mn><mml:mi>−</mml:mi><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Mn</mml:mi></mml:mrow><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Zr</mml:mi></mml:mrow><mml:mrow><mml:mn>10</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mi/><mml:mo>(</mml:mo><mml:mn>0</mml:mn><mml:mn/><mml:mo>&lt;~</mml:mo><mml:mi>x</mml:mi><mml:mo>&lt;~</mml:mo><mml:mn>1</mml:mn><mml:mn>6</mml:mn><mml:mo>)</mml:mo></mml:math>alloys

2003· article· lv· W1972522924 on OpenAlexafffund
V. Srinivas, A. Perumal, A. K. Nigam, G. Chandra, A.E. George, R. A. Dunlap

Bibliographic record

VenuePhysical review. B, Condensed matter · 2003
Typearticle
Languagelv
FieldPhysics and Astronomy
TopicTheoretical and Computational Physics
Canadian institutionsDalhousie University
FundersNatural Sciences and Engineering Research Council of CanadaKillam TrustsDalhousie UniversityCouncil of Scientific and Industrial Research, India
KeywordsElectrical resistivity and conductivityCondensed matter physicsMagnetizationMagnetoresistanceCurie temperatureMaterials scienceAnisotropyAmorphous solidFerromagnetismAtmospheric temperature rangeResidual resistivityMagnetic fieldPhysicsChemistryThermodynamicsSuperconductivityCrystallography

Abstract

fetched live from OpenAlex

Zero-field and in field electrical resistivity, magnetoresistivity, and magnetization measurements have been performed in the temperature range of 4.2 K to 300 K and in the fields up to 60 kOe on amorphous ${\mathrm{Fe}}_{90\ensuremath{-}x}{\mathrm{Mn}}_{x}{\mathrm{Zr}}_{10}(0&lt;~x&lt;~16)$ alloys. Unusual properties such as a broad resistivity minimum in the higher-temperature region and a resistivity minimum close to Curie temperature were observed for alloys with a certain Mn content. An analysis of the resistivity data using existing theories reveals the actual functional dependencies of resistivity on temperature in different temperature ranges. The enhancement of spin fluctuation with Mn concentration has been observed from resistivity data and is further supported by the magnetization data. A comparative study of magnetic and transport properties indicates that remarkable effects due to magnetic ordering are present in both resistivity and magnetoresistivity. The observed composition dependence of the spontaneous resistive anisotropy is explained in terms of the two-current-conduction model. The determined values of composition dependence of spin-up and spin-down residual resistivity provide conclusive evidence of weak itinerant ferromagnetism over the entire composition range of the present investigation. These results are further supported by the high-field dc susceptibility data obtained from magnetization measurements.

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.

How this classification was reachedexpand

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)0.010
metaresearch head score (Gemma)0.007
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Meta-epidemiology (broad), Science and technology studies, Scholarly communication, Open science, Research integrity, Insufficient payload (model declined to judge)
Consensus categoriesMeta-epidemiology (narrow), Science and technology studies, Open science, Research integrity, Insufficient payload (model declined to judge)
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: none
GenreCandidate signal: Empirical · Consensus signal: none
Teacher disagreement score0.949
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0100.007
Meta-epidemiology (narrow)0.0050.012
Meta-epidemiology (broad)0.0020.012
Bibliometrics0.0040.008
Science and technology studies0.0080.011
Scholarly communication0.0080.008
Open science0.0120.009
Research integrity0.0110.010
Insufficient payload (model declined to judge)0.9600.011

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 head0.015
GPT teacher head0.245
Teacher spread0.229 · 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

Classification

machine, unvalidated

Machine predicted; both teacher heads agree on what is shown here.

Study designBench or experimental
Domainnot available
GenreEmpirical

How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".

Quick stats

Citations4
Published2003
Admission routes2
Has abstractyes

Explore more

Same venuePhysical review. B, Condensed matterSame topicTheoretical and Computational PhysicsFrench-language works237,207