Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs2CuCl4

被引:0
作者
S. A. Zvyagin
D. Graf
T. Sakurai
S. Kimura
H. Nojiri
J. Wosnitza
H. Ohta
T. Ono
H. Tanaka
机构
[1] Helmholtz-Zentrum Dresden-Rossendorf,Dresden High Magnetic Field Laboratory (HLD
[2] Florida State University,EMFL)
[3] Kobe University,National High Magnetic Field Laboratory
[4] Tohoku University,Research Facility Center for Science and Technology
[5] TU Dresden,Institute for Materials Research
[6] Kobe University,Institut für Festkörper
[7] Osaka Prefecture University, und Materialphysik
[8] Tokyo Institute of Technology,Molecular Photoscience Research Center
来源
Nature Communications | / 10卷
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摘要
Quantum triangular-lattice antiferromagnets are important prototype systems to investigate numerous phenomena of the geometrical frustration in condensed matter. Apart from highly unusual magnetic properties, they possess a rich phase diagram (ranging from an unfrustrated square lattice to a quantum spin liquid), yet to be confirmed experimentally. One major obstacle in this area of research is the lack of materials with appropriate (ideally tuned) magnetic parameters. Using Cs2CuCl4 as a model system, we demonstrate an alternative approach, where, instead of the chemical composition, the spin Hamiltonian is altered by hydrostatic pressure. The approach combines high-pressure electron spin resonance and r.f. susceptibility measurements, allowing us not only to quasi-continuously tune the exchange parameters, but also to accurately monitor them. Our experiments indicate a substantial increase of the exchange coupling ratio from 0.3 to 0.42 at a pressure of 1.8 GPa, revealing a number of emergent field-induced phases.
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[31]   Algebraic vortex liquid in spin-1/2 triangular antiferromagnets:: Scenario for Cs2CuCl4 -: art. no. 247203 [J].
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[39]   SPIN STIFFNESSES OF THE QUANTUM HEISENBERG-ANTIFERROMAGNET ON A TRIANGULAR LATTICE [J].
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[40]   Field-induced quantum phase transitions in the spin-1/2 triangular-lattice antiferromagnet Cs2CuBr4 [J].
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