Pressure-Tuned Exchange Coupling of a Quantum Spin Liquid in the Molecular Triangular Lattice κ-(ET)_{2}Ag_{2}(CN)_{3}.

@article{Shimizu2016PressureTunedEC,
  title={Pressure-Tuned Exchange Coupling of a Quantum Spin Liquid in the Molecular Triangular Lattice $\kappa$-(ET)\_\{2\}Ag\_\{2\}(CN)\_\{3\}.},
  author={Yasuhiro Shimizu and Takaaki Hiramatsu and Mitsuhiko Maesato and Akihiro Otsuka and Hideki Yamochi and Akihiro Ono and Masayuki Itoh and Makoto Yoshida and Masashi Takigawa and Yukihiro Yoshida and Gunzi Saito},
  journal={Physical review letters},
  year={2016},
  volume={117 10},
  pages={
          107203
        }
}
The effects of pressure on a quantum spin liquid are investigated in an organic Mott insulator κ-(ET)_{2}Ag_{2}(CN)_{3} with a spin-1/2 triangular lattice. The application of negative chemical pressure to κ-(ET)_{2}Cu_{2}(CN)_{3}, which is a well-known sister Mott insulator, allows for extensive tuning of antiferromagnetic exchange coupling, with J/k_{B}=175-310  K, under hydrostatic pressure. Based on ^{13}C nuclear magnetic resonance measurements under pressure, we uncover universal scaling… 

Figures from this paper

Design and Preparation of a Quantum Spin Liquid Candidate κ-(ET)2Ag2(CN)3 Having a Nearby Superconductivity

Similar to the first quantum spin liquid (QSL) candidate, κ-(ET)2Cu2(CN)3 (1), newly prepared κ-(ET)2Ag2(CN)3 (2) is a dimer Mott insulator with a QSL ground state at ambient pressure and exhibits

Thirty-Year Anniversary of κ-(BEDT-TTF)2Cu2(CN)3: Reconciling the Spin Gap in a Spin-Liquid Candidate

In 1991, the Argonne group led by Jack Williams [Inorg. Chem. 1991, 30, 2586–2588] reported the first synthesis of κ-(BEDT-TTF)2Cu2(CN)3. Although, originally, the focus was on the superconducting

Electrodynamics of quantum spin liquids

The spinon contributions to the optical conductivity in comparison to metallic quantum fluctuations in the vicinity of the Mott transition is discussed.

Magnetic and charge susceptibilities in the half-filled triangular lattice Hubbard model

We study magnetic and charge susceptibilities in the half-filled two-dimensional triangular Hubbard model within the dual fermion approximation in the metallic, Mott insulating, and crossover regions

Anomalously field-susceptible spin clusters emerging in the electric-dipole liquid candidate κ-(ET)2Hg(SCN)2Br

Mutual interactions in many-body systems bring about various exotic phases, among which liquid-like states failing to order due to frustration are of keen interest. The organic system with an

Impurity moments conceal low-energy relaxation of quantum spin liquids

We scrutinize the magnetic properties of $\kappa$-(BEDT-TTF)$_2$Hg(SCN)$_2$Cl through its first-order metal-insulator transition at $T_{\rm CO}=30$ K by means of $^1$H nuclear magnetic resonance

Electrodynamics in Organic Dimer Insulators Close to Mott Critical Point

Organic layered charge-transfer salts κ -(BEDT-TTF) 2 X form highly frustrated lattices of molecular dimers in which strong correlations give rise to Mott insulating states situated close to the

Spectral function of the $J_1-J_2$ Heisenberg model on the triangular lattice

Spectral probes, such as neutron scattering, are crucial for characterizing excitations in quantum many-body systems and the properties of quantum materials. Among the most elusive phases of matter

Thermal Expansion Studies on the Spin‐Liquid‐Candidate System κ‐(BEDT‐TTF)2Ag2(CN)3

This paper presents results of the thermal expansion coefficient of the newly‐synthesized spin‐liquid‐candidate system κ‐(BEDT‐TTF)2Ag2(CN)3. The main finding includes pronounced broad extrema in the

Algebraic charge dynamics of the quantum spin liquid β′−EtMe3Sb[Pd(dmit)2]2

Nuclear spin-lattice (1/T1) and spin-spin (1/T2) relaxation rates of the cation sites of a quantum spin-liquid candidate b'-EtMe3Sb[Pd(dmit)2]2 and its deuterated sample are presented. The enhanced
...