Quick Navigation

Overview Topics Abstract Importance Paper Tools References Reactions Discussion Publication

Topics

Open Quantum Systems Decoherence

Phonon renormalization effects accompanying the 6 K anomaly in the quantum spin liquid candidate κ-(BEDT-TTF)_{2}Cu_{2}(CN)_{3}

DOAJ
Authors: Masato Matsuura, Takahiko Sasaki, Makoto Naka, Jens Müller, Oliver Stockert, Andrea Piovano, Naoki Yoneyama, Michael Lang

Year

2022

Paper ID

38581

Status

Peer-reviewed

Abstract Read

~2 min

Abstract Words

112

Citations

11

Abstract

The low-temperature state of the quantum spin liquid candidate κ-(BEDT-TTF)_{2}Cu_{2}(CN)_{3} emerges via an anomaly at T^{*}∼6 K. Although signatures of this anomaly have been revealed in various quantities, its origin has remained unclear. Here we report inelastic neutron scattering measurements on single crystals of κ-(BEDT-TTF)_{2}Cu_{2}(CN)_{3}, aiming at studying phonon renormalization effects at T^{*}. A drastic change was observed in the phonon damping across T^{*} for a breathing mode of BEDT-TTF dimers at E=4.7 meV. The abrupt change in the phonon damping is attributed to a phase transition into a valence bond solid state based on an effective model describing the spin-charge coupling in this dimer-Mott system.

Why This Paper Matters

  • This paper contributes to the Open Quantum Systems & Decoherence research area in the Quantum Articles archive.
  • It adds a 2022 reference point for readers tracking recent quantum research.
  • The low-temperature state of the quantum spin liquid candidate κ-(BEDT-TTF)_2Cu_2(CN)_3 emerges via an anomaly at T^*∼6 K.

Paper Tools

Become a member to use research tools

Sign in to open papers, visit source links, share, cite, compare, copy DOI links, request category corrections, and build your reading list.

Become a member Sign in
Publisher Share Cite This Paper Copy URL Compare Copy DOI Add to Reading List Category Correction Request

References & Citation Signals

[1] DOI https://doi.org/10.1103/PhysRevResearch.4.L042047 [2] Publisher http://doi.org/10.1103/PhysRevResearch.4.L042047

Local Citation Graph (Related-Paper Links)

Current Paper #38581

External citation index: OpenAlex citation signal • updated 2026-11-02 08:47:09

Community Reactions

Quick sentiment from readers on this paper.

Score: 0
Likes: 0 Dislikes: 0

Sign in to react to this paper.

Discussion & Reviews (Moderated)

Average Rating: 0.0 / 5 (0 ratings)

No written reviews yet.