Triplet pairing driven by Hund's coupling in doped monolayer MoS$_2$

Carsten Honerkamp; Jie Yuan

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Triplet pairing driven by Hund's coupling in doped monolayer MoS$_2$

Jie Yuan, Carsten Honerkamp

Superconductivity · Submitted 17 Apr 2015

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

The authors' main claim We demonstrate that the triplet pairing is driven by ferromagnetic fluctuations and that the multiorbital nature of the conduction band as well as the Hund's coupling appear crucial in making the physics of MoS$_2$ different from e.g. doped graphene.

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What the abstract itself states, as probabilities: claims first 0.03 · states limitation 0.10 · human participants 0.01 · controlled comparison 0.09 · randomized assignment 0.01 · states quantitative result 0.10 · compares with prior results 0.73 · mentions code or data availability 0.02.

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

We investigate superconducting pairing driven by electron-electron interactions in a theoretical model for monolayer MoS$_2$ with the temperature-flow functional renormalization group(fRG). At low doping, the dominant instability is toward odd-parity pairing with $f$-wave Mo-nearest-neighbor structure. We compute the fRG phase diagram versus electron doping below the van Hove filling of the conduction band. In the superconducting regime, the critical temperature grows with doping, comparable to the experiments. Near van Hove filling the system favors a ferromagnetic state. We demonstrate that the triplet pairing is driven by ferromagnetic fluctuations and that the multiorbital nature of the conduction band as well as the Hund's coupling appear crucial in making the physics of MoS$_2$ different from e.g. doped graphene.

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What the classifier reports for each sentence. The number is the probability it gave the label.
#	sentence	role	the authors' own work	states the main conclusion	strength
s0	We investigate superconducting pairing driven by electron-electron interactions in a theoretical model for monolayer MoS$_2$ with the temperature-flow functional renormalization group(fRG).	contribution 0.80	0.94	0.05	asserted 0.81
s1	At low doping, the dominant instability is toward odd-parity pairing with $f$-wave Mo-nearest-neighbor structure.	result 1.00	0.90	0.22	asserted 1.00
s2	We compute the fRG phase diagram versus electron doping below the van Hove filling of the conduction band.	contribution 0.66	0.95	0.04	asserted 0.95
s3	In the superconducting regime, the critical temperature grows with doping, comparable to the experiments.	result 1.00	0.91	0.11	asserted 0.99
s4	Near van Hove filling the system favors a ferromagnetic state.	result 1.00	0.88	0.08	asserted 0.97
s5	We demonstrate that the triplet pairing is driven by ferromagnetic fluctuations and that the multiorbital nature of the conduction band as well as the Hund's coupling appear crucial in making the physics of MoS$_2$ different from e.g. doped graphene.	interpretation 0.93	0.93	0.86	asserted 1.00

What kind of paper the classifier reports this is: simulation study 0.66 · evidence from simulation or computation 1.00.

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The paper

Original abstract

We investigate superconducting pairing driven by electron-electron interactions in a theoretical model for monolayer MoS$_2$ with the temperature-flow functional renormalization group(fRG). At low doping, the dominant instability is toward odd-parity pairing with $f$-wave Mo-nearest-neighbor structure. We compute the fRG phase diagram versus electron doping below the van Hove filling of the conduction band. In the superconducting regime, the critical temperature grows with doping, comparable to the experiments. Near van Hove filling the system favors a ferromagnetic state. We demonstrate that the triplet pairing is driven by ferromagnetic fluctuations and that the multiorbital nature of the conduction band as well as the Hund's coupling appear crucial in making the physics of MoS$_2$ different from e.g. doped graphene.

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6 arXiv papers cite this in 9 sentences

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

Papers citing it · 4 sentences without a confident label

Cites it as support 1 paper

We conclude that for unconventional electron driven superconductivity in MoS2 one would need more complex mechanisms involving a stronger renormalization of the interactions at low energies than what can be achieved via substrates [ref] .

Interplay of screening and superconductivity in low-dimensional materials · Coulomb driven superconductivity · 0.97

Cites it as background 4 papers

On the theory side, several mechanisms including purely electronic ones (called Coulomb driven hereafter) have been suggested to give rise to superconductivity, predicting unconventional [ref] and possibly topologically non-trivial types of superconducting order [ref] .

Interplay of screening and superconductivity in low-dimensional materials · Introduction · 0.85
More recently, Ising-type SOC have been studied as well both experimentally and theoretically [ref] in which electron spin tends to be locked in out-of-plane direction.

Theory of superconductivity in hole-doped monolayer MoS$_{2}$ · Introduction · 0.96
We do not address the possibility of non-$s$-wave superconductivity by strong electron correlations [ref] .

Odd-parity superconductivity in bilayer transition metal dichalcogenides · Bilayer model · 0.81

What it cites

Cites as background 1 paper

The possible nature of superconductivity in MoS$_2$ is of high interest to theory [ref] .

Phase Diagram of Electron Doped Dichalcogenides · Introduction · 0.93

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