Stabilization of U <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>5</mml:mn> <mml:msup> <mml:mi>f</mml:mi> <mml:mn>2</mml:mn> </mml:msup> </mml:mrow> </mml:math> configuration in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:msub> <mml:mi>UTe</mml:mi> <mml:mn>2</mml:mn> </mml:msub> </mml:math> through U <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mrow> <mml:mn>6</mml:mn> <mml:mi>d</mml:mi> </mml:mrow> </mml:math> dimers in the presence of Te2 chains
Bibliographic record
Abstract
We investigate the topological superconductor candidate <a:math xmlns:a="http://www.w3.org/1998/Math/MathML"> <a:msub> <a:mi>UTe</a:mi> <a:mn>2</a:mn> </a:msub> </a:math> using high-resolution valence-band resonant inelastic x-ray scattering at the U <b:math xmlns:b="http://www.w3.org/1998/Math/MathML"> <b:msub> <b:mi>M</b:mi> <b:mrow> <b:mn>4</b:mn> <b:mo>,</b:mo> <b:mn>5</b:mn> </b:mrow> </b:msub> </b:math> edges. We observe atomiclike low-energy excitations that support the correlated nature of this unconventional superconductor. These excitations originate from the U <c:math xmlns:c="http://www.w3.org/1998/Math/MathML"> <c:mrow> <c:mn>5</c:mn> <c:msup> <c:mi>f</c:mi> <c:mn>2</c:mn> </c:msup> </c:mrow> </c:math> configuration, which is unexpected since the short Te2-Te2 distances exclude Te2 being <d:math xmlns:d="http://www.w3.org/1998/Math/MathML"> <d:mn>2</d:mn> <d:mo>−</d:mo> </d:math> . By utilizing the photoionization cross-section dependence of the photoemission spectra in combination with band structure calculations, we infer that the stabilization of the U <e:math xmlns:e="http://www.w3.org/1998/Math/MathML"> <e:mrow> <e:mn>5</e:mn> <e:msup> <e:mi>f</e:mi> <e:mn>2</e:mn> </e:msup> </e:mrow> </e:math> configuration is due to the U <f:math xmlns:f="http://www.w3.org/1998/Math/MathML"> <f:mrow> <f:mn>6</f:mn> <f:mi>d</f:mi> </f:mrow> </f:math> bonding states in the U dimers acting as a charge reservoir. Our results emphasize that the description of the physical properties should commence with a <g:math xmlns:g="http://www.w3.org/1998/Math/MathML"> <g:mrow> <g:mn>5</g:mn> <g:msup> <g:mi>f</g:mi> <g:mn>2</g:mn> </g:msup> </g:mrow> </g:math> ansatz. Published by the American Physical Society 2024
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 imitationNot 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.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.009 | 0.006 |
| Meta-epidemiology (narrow) | 0.004 | 0.006 |
| Meta-epidemiology (broad) | 0.002 | 0.006 |
| Bibliometrics | 0.002 | 0.006 |
| Science and technology studies | 0.005 | 0.006 |
| Scholarly communication | 0.005 | 0.006 |
| Open science | 0.008 | 0.006 |
| Research integrity | 0.005 | 0.008 |
| Insufficient payload (model declined to judge) | 0.067 | 0.008 |
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.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; both teacher heads agree on what is shown here.
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".