Mapping the B,T phase diagram of frustrated metamagnet CuFeO2

Abstract

The magnetic phase diagram of CuFeO2 as a function of applied magnetic field and temperature is thoroughly explored and expanded, both for magnetic fields applied parallel and perpendicular to the material's c-axis. Pulsed field magnetization measurements extend the typical magnetic staircase of CuFeO2 at various temperatures, demonstrating the persistence of the recently discovered high field metamagnetic transition up to Tn2 ~ 11 K in both field configurations. An extension of the previously introduced phenomenological spin model used to describe the high field magnetization process (Phys. Rev. B, 80, 012406 (2009)) is applied to each of the consecutive low-field commensurate spin structures, yielding a semi-quantitative simulation and intuitive description of the entire experimental magnetization process in both relevant field directions with a single set of parameters.

14 pages, 11 figures, submitted to Phys. Rev. B

References in corpus (11)

• Impurity-doping induced ferroelectricity in frustrated antiferromagnet CuFeO2
• Magnetic Interaction in the Geometrically Frustrated Triangular Lattice Antiferromagnet $\mathrm{CuFe}{\mathrm{O}}_2$
• Electric Polarization Induced by a Proper Helical Magnetic Ordering in a Delafossite Multiferroic CuFe1-xAlxO2
• Mechanisms of degeneracy breaking in pyrochlore antiferromagnets
• Spin phonon induced colinear order and magnetization plateaus in triangular and kagome antiferromagnets. Applications to CuFeO_2
• High-field recovery of the undistorted triangular lattice in the frustrated metamagnet CuFeO2
• Long-range magnetic order and spin-lattice coupling in the delafossite CuFeO2
• Non-Collinear Magnetic Phases of a Triangular-Lattice Antiferromagnet and Doped CuFeO${}_2$
• The Collinear Magnetic Phases of the Geometrically-Frustrated Antiferromagnet CuFeO${}_2$: The Importance of Stacking
• Spin-Wave Instabilities and Non-Collinear Magnetic Phases of a Geometrically-Frustrated Triangular-Lattice Antiferromagnet
• Nonlocal Landau theory of the magnetic phase diagram of highly frustrated magnetoelectric CuFeO${}_2$

Cited by in corpus (5)

• Quantum Magnetism in Minerals
• Magnetic excitations in the geometric frustrated multiferroic CuCrO${}_2$
• High-Pressure Suppression of Long Range Magnetic Order in the Triangular Lattice Antiferromagnet CuFeO2
• Ultrahigh Magnetic Field Phases in Frustrated Triangular-lattice Magnet CuCrO${}_2$
• Rich magnetoelectric phase diagrams of multiferroic single-crystal alpha-NaFeO2