High-field recovery of the undistorted triangular lattice in the frustrated metamagnet CuFeO2

Abstract

Pulsed field magnetization experiments extend the typical metamagnetic staircase of CuFeO2 up to 58 T to reveal an additional first order phase transition at high field for both the parallel and perpendicular field configuration. Virtually complete isotropic behavior is retrieved only above this transition, indicating the high-field recovery of the undistorted triangular lattice. A consistent phenomenological rationalization for the field dependence and metamagnetism crossover of the system is provided, demonstrating the importance of both spin-phonon coupling and a small field-dependent easy-axis anisotropy in accurately describing the magnetization process of CuFeO2.

arXiv comment4 pages, 4 figures

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Cited by in corpus (6)

• Quantum Magnetism in Minerals
• Mapping the B,T phase diagram of frustrated metamagnet CuFeO2
• Low-temperature heat transport of CuFe${}_{1-x}$Ga${}_x$O${}_2$ ($x=$ 0--0.12) single crystals
• Polarization memory in the nonpolar magnetic ground state of multiferroic CuFeO2
• Multiple field-induced phases in the frustrated triangular magnet Cs${}_3$Fe${}_2$Br${}_9$
• Anisotropic magnetic field responses of ferroelectric polarization in a trigonal multiferroic CuFe1-xAlxO2 (x=0.015)