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Universal excitonic superexchange in spin-orbit-coupled Mott insulators

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Chao-Kai Li, Gang Chen

Strongly Correlated Electrons · Submitted 11 Oct 2021

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

The authors' main claim We point out the universal presence of the excitonic superexchange in spin-orbit-coupled Mott insulators.

how it is stated · asserted 1.00 read the record →

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arXiv ID2110.05212 (version 2)
Pith IDZPGOEX6E, Pith's permanent record of this paper and its review
CitationChao-Kai Li, Gang Chen. "Universal excitonic superexchange in spin-orbit-coupled Mott insulators." arXiv:2110.05212 (2021). https://pith.science/paper/ZPGOEX6E
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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, 3,794 input tokens.

What the abstract itself states, as probabilities: claims first 0.06 · states limitation 0.39 · human participants 0.01 · controlled comparison 0.06 · randomized assignment 0.01 · states quantitative result 0.04 · compares with prior results 0.35 · mentions code or data availability 0.01.

The abstract, sentence by sentence

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

We point out the universal presence of the excitonic superexchange in spin-orbit-coupled Mott insulators. It is observed that, the restriction to the lowest spin-orbit-entangled "$J$" states may sometimes be insufficient to characterize the microscopic physics, and the virtual excitonic processes via the upper "$J$" states provide an important correction to the superexchange. We illustrate this excitonic superexchange from a two-dimensional $5d$ iridate Sr$_2$IrO$_4$ and explain its physical consequences such as the orbital-like coupling to the external magnetic flux and the nonlinear magnetic susceptibility. The universal presence of the excitonic superexchange in other spin-orbit-coupled Mott insulators such as $3d$ Co-based Kitaev magnets and even $f$ electron rare-earth magnets is further discussed.

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 We point out the universal presence of the excitonic superexchange in spin-orbit-coupled Mott insulators. contribution 0.70 0.81 0.90 asserted 1.00
s1 It is observed that, the restriction to the lowest spin-orbit-entangled "$J$" states may sometimes be insufficient to characterize the microscopic physics, and the virtual excitonic processes via the upper "$J$" states provide an important correction to the superexchange. result 0.69 0.51 0.12 hedged possibility 0.95
s2 We illustrate this excitonic superexchange from a two-dimensional $5d$ iridate Sr$_2$IrO$_4$ and explain its physical consequences such as the orbital-like coupling to the external magnetic flux and the nonlinear magnetic susceptibility. contribution 0.89 0.83 0.09 asserted 1.00
s3 The universal presence of the excitonic superexchange in other spin-orbit-coupled Mott insulators such as $3d$ Co-based Kitaev magnets and even $f$ electron rare-earth magnets is further discussed. contribution 0.74 0.57 0.13 asserted 0.63

What kind of paper the classifier reports this is: theoretical result 0.97 · evidence from argument 0.56.

What was examined, and what was not

sources read
  • arXiv listing abstract v2
not examined
  • full text
  • figures and tables
  • references and citing sentences
  • relations to other papers
levels run
  • P abstract
not run
  • S sections
  • T body sentences
  • C citations
  • R cross-paper relations

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

We point out the universal presence of the excitonic superexchange in spin-orbit-coupled Mott insulators. It is observed that, the restriction to the lowest spin-orbit-entangled "$J$" states may sometimes be insufficient to characterize the microscopic physics, and the virtual excitonic processes via the upper "$J$" states provide an important correction to the superexchange. We illustrate this excitonic superexchange from a two-dimensional $5d$ iridate Sr$_2$IrO$_4$ and explain its physical consequences such as the orbital-like coupling to the external magnetic flux and the nonlinear magnetic susceptibility. The universal presence of the excitonic superexchange in other spin-orbit-coupled Mott insulators such as $3d$ Co-based Kitaev magnets and even $f$ electron rare-earth magnets is further discussed.

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What this paper does with the arXiv papers it cites

Each citing sentence is taken from the citing paper's LaTeX source and typed by Pith's classifier. A label appears at probability 0.8 or more (0.95 for support), a contest at 0.7 or more; the quoted words are the citing authors'. How each label was checked · JSON

What it cites

Uses the method or tool of 1 paper
Cites as background 1 paper
  • The latter covers the $4d$/$5d$ magnets like Kitaev materials, iridates, osmates [ref] , $4f$ rare-earth magnets [ref] , or even $3d$ Co-based Kitaev magnets and Ni-based diamond antiferromagnets that are of some recent interest [ref] .

    Kitaev Materials · Introduction · 0.99

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