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Resonant carbon K-edge soft x-ray scattering from lattice-free heliconical molecular ordering: soft dilative elasticity of the twist-bend liquid crystal phase

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Chenhui Zhu, Michael R. Tuchband, Anthony Young, Min Shuai, Alyssa Scarbrough, David M. Walba, Joseph E. Maclennan, Cheng Wang
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Alexander Hexemer, Noel A. Clark

Soft Condensed Matter · Submitted 28 Dec 2015

abstract compiled · 2026-09-23 · no language-model review

The authors' main claim Resonant x-ray scattering shows that the bulk structure of the twist-bend liquid crystal phase, recently discovered in bent molecular dimers, has spatial periodicity without electron density modulation, indicating a lattice-free heliconical nematic precession of orientation that has helical glide symmetry.

how it is stated · asserted 0.76 read the record →

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arXiv ID1512.08340 (version 2)
Pith ID2ZEQOOFC, Pith's permanent record of this paper and its review
CitationAlexander Hexemer, Alyssa Scarbrough, Anthony Young, Cheng Wang, Chenhui Zhu, David M. Walba, Joseph E. Maclennan, Michael R. Tuchband, Min Shuai, Noel A. Clark. "Resonant carbon K-edge soft x-ray scattering from lattice-free heliconical molecular ordering: soft dilative elasticity of the twist-bend liquid crystal phase." arXiv:1512.08340 (2015). https://pith.science/paper/2ZEQOOFC
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The compiled record

The paper's own sentences, arranged. Each label is drawn from a closed vocabulary; the number beside it is the probability the classifier gave that label. Numbers in the tables are the authors', checked by code. No sentence in this record was written by a model.

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Compiled by classifier-1.13.0 via TypeSafe API, question bank abstract-p1-20260923, 2026-09-23: 1 request, 3,051 input tokens.

What the abstract itself states, as probabilities: claims first 0.07 · states limitation 0.31 · human participants 0.02 · controlled comparison 0.17 · randomized assignment 0.01 · states quantitative result 0.09 · compares with prior results 0.21 · mentions code or data availability 0.02.

The abstract, sentence by sentence

arXiv listing abstract v2. Results and the main claim are underlined; .

Resonant x-ray scattering shows that the bulk structure of the twist-bend liquid crystal phase, recently discovered in bent molecular dimers, has spatial periodicity without electron density modulation, indicating a lattice-free heliconical nematic precession of orientation that has helical glide symmetry. In situ study of the bulk helix texture for the dimer CB7CB shows an elastically-confined temperature-dependent minimum helix pitch, but a remarkable elastic softness of pitch in response to dilative stresses. Scattering from the helix is not detectable in the higher temperature nematic phase.

background contribution method result interpretation main claim

What the classifier reports for each sentence. The number is the probability it gave the label.
#sentencerolethe authors' own workstates the main conclusionstrength
s0 Resonant x-ray scattering shows that the bulk structure of the twist-bend liquid crystal phase, recently discovered in bent molecular dimers, has spatial periodicity without electron density modulation, indicating a lattice-free heliconical nematic precession of orientation that has helical glide symmetry. result 0.92 0.85 0.76 asserted 0.76
s1 In situ study of the bulk helix texture for the dimer CB7CB shows an elastically-confined temperature-dependent minimum helix pitch, but a remarkable elastic softness of pitch in response to dilative stresses. result 0.98 0.92 0.25 asserted 1.00
s2 Scattering from the helix is not detectable in the higher temperature nematic phase. result 1.00 0.80 0.05 asserted 1.00

What kind of paper the classifier reports this is: empirical study 1.00 · evidence from observation or experiment 1.00.

What was examined, and what was not

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  • full text
  • figures and tables
  • references and citing sentences
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  • C citations
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Every quoted sentence on this record is the authors'. Every label is from Pith's closed vocabulary, with the probability shown beside it. Every number in the measurements table is the authors', checked by code. Record as JSON

The paper
Original abstract

Resonant x-ray scattering shows that the bulk structure of the twist-bend liquid crystal phase, recently discovered in bent molecular dimers, has spatial periodicity without electron density modulation, indicating a lattice-free heliconical nematic precession of orientation that has helical glide symmetry. In situ study of the bulk helix texture for the dimer CB7CB shows an elastically-confined temperature-dependent minimum helix pitch, but a remarkable elastic softness of pitch in response to dilative stresses. Scattering from the helix is not detectable in the higher temperature nematic phase.

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