Magnetic-field and pressure phase diagram of the triangular lattice antiferromagnet CsCuCl${}_3$ clarified by magnetic susceptibility measured with a proximity detector oscillator

Abstract

The effect of pressure ($P$) on magnetic susceptibility of CsCuCl${}_3$ was examined in magnetic fields (${\mu }_0$$H$) of up to 51 T using a proximity detector oscillator (PDO), and the $H$-$P$ phase diagram of CsCuCl${}_3$ was constructed over the saturation field ($H_{\mathrm{sat}}$). We found that, with increasing $P$, $H_{\mathrm{sat}}$ increases and the uud-phase that appeared at $P$ = 0.7 GPa widened. Based on comparison between the experimental and calculated $H$-$P$ phase diagrams, the Y-phase was predicted to appear above 1.7 GPa. The interchain antiferromagnetic exchange interaction in the $ab$-plane was evaluated and found to increase with increasing $P$, which is consistent with a previous study under high pressure [D. Yamamoto {\it et al.}, Nat. Commun. {\bf 12}, 4263 (2021).]. Moreover, an anomaly was observed below $P$ = 0.6 GPa just below $H_{\mathrm{sat}}$ and might be a new phase transition derived from nonlinear response caused by the PDO technique.

arXiv comment14 pages, 7 figures

References in corpus (12)

• Experimental Realization of Spin-1/2 Triangular-Lattice Heisenberg Antiferromagnet
• Unusual ordered phases of highly frustrated magnets: a review
• Magnetization Process and Collective Excitations in the S=1/2 Triangular-Lattice Heisenberg Antiferromagnet Ba3CoSb2O9
• Quantum Phase Diagram of the Triangular-Lattice XXZ Model in a Magnetic Field
• Critical magnetization behaviors of the triangular and Kagome lattice quantum antiferromagnets
• Phase diagram of the classical Heisenberg antiferromagnet on a triangular lattice in applied magnetic field
• Magnetization plateaux of S = 1/2 two-dimensional frustrated antiferromagnet Cs${}_2$CuBr${}_4$
• Pressure-tuning the quantum spin Hamiltonian of the triangular lattice antiferromagnet Cs${}_2$CuCl${}_4$
• Semiclassical theory of the magnetization process of the triangular lattice Heisenberg model
• Magnetic Phase Transition and Magnetization Plateau in Cs${}_2$CuBr${}_4$
• Continuous control of classical-quantum crossover by external high pressure in the coupled chain compound CsCuCl${}_3$
• New magnetic phases on chiral magenet CsCuCl${}_3$ under high pressures

Cited by in corpus (1)

• Spin pumping into quantum spin chains