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Magnetic moment of rare-earth elements in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>R</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Fe</mml:mi><mml:mn>14</mml:mn></mml:msub><mml:mi mathvariant="normal">B</mml:mi></mml:mrow></mml:math> estimated with <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msup><mml:mi>μ</mml:mi><mml:mo>+</mml:mo></mml:msup><mml:mi>SR</mml:mi></mml:mrow></mml:math>

2019· article· lv· W2943318313 on OpenAlex

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

VenuePhysical Review Materials · 2019
Typearticle
Languagelv
FieldMaterials Science
TopicMagnetic Properties of Alloys
Canadian institutionsUniversity of British ColumbiaUniversity of SaskatchewanTRIUMF
FundersJapan Society for the Promotion of ScienceTRIUMF
KeywordsMuonMuon spin spectroscopyMagnetic momentPrecessionFerromagnetismLarmor precessionNeutronNeutron scatteringScatteringSpin (aerodynamics)

Abstract

fetched live from OpenAlex

The ferromagnetic (FM) nature of ${\mathrm{Nd}}_{2}{\mathrm{Fe}}_{14}\mathrm{B}$ has been investigated with muon spin rotation and relaxation (${\ensuremath{\mu}}^{+}\mathrm{SR}$) measurements on an aligned, sintered plate-shaped sample. A clear muon spin precession frequency (${f}_{\mathrm{FM}}$) corresponding to the static internal FM field at the muon site showed an order parameter-like temperature dependence and disappeared above around 582 K ($\ensuremath{\sim}{T}_{\mathrm{C}}$). This indicated that the implanted muons are static in the ${\mathrm{Nd}}_{2}{\mathrm{Fe}}_{14}\mathrm{B}$ lattice even at temperatures above around 600 K. Using the muon site and local spin densities predicted by DFT calculations, the ordered Nd moment (${M}_{\mathrm{Nd}}$) was estimated to be 3.31 ${\ensuremath{\mu}}_{\mathrm{B}}$ at 5 K, when both ${\mathbit{M}}_{\mathrm{Fe}}$ and ${\mathbit{M}}_{\mathrm{Nd}}$ are parallel to the $\stackrel{\ifmmode \hat{}\else \^{}\fi{}}{\mathbf{c}}$ axis and ${M}_{\mathrm{Fe}}=2.1\phantom{\rule{0.16em}{0ex}}{\ensuremath{\mu}}_{\mathrm{B}}$. Furthermore, ${M}_{R}$ in ${R}_{2}{\mathrm{Fe}}_{14}\mathrm{B}$ with $R=\mathrm{Y}$, Ce, Pr, Sm, Gd, Tb, Dy, Ho, Er, and Tm was estimated from ${f}_{\ensuremath{\mu}}$ values reported in earlier ${\ensuremath{\mu}}^{+}\mathrm{SR}$ work, using the FM structure proposed by neutron scattering and the same muon site and local spin density as in ${\mathrm{Nd}}_{2}{\mathrm{Fe}}_{14}\mathrm{B}$. Such estimations yielded ${M}_{R}$ values consistent with those obtained by the other methods.

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)0.008
metaresearch head score (Gemma)0.005
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), 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: Empirical
Teacher disagreement score0.890
Threshold uncertainty score0.999

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0080.005
Meta-epidemiology (narrow)0.0040.007
Meta-epidemiology (broad)0.0020.005
Bibliometrics0.0020.004
Science and technology studies0.0040.006
Scholarly communication0.0060.005
Open science0.0090.009
Research integrity0.0060.004
Insufficient payload (model declined to judge)0.6350.015

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 head0.019
GPT teacher head0.246
Teacher spread0.227 · 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