Pressure-induced polarization reversal in multiferroic $YM{n}_2{O}_5$

Abstract

The low-temperature ferroelectric polarization of multiferroic $YM{n}_2{O}_5$ is completely reversed at a critical pressure of 10 kbar and the phase transition from the incommensurate to the commensurate magnetic phase is induced by pressures above 14 kbar. The high-pressure data correlate with thermal expansion measurements indicating a significant lattice strain at the low-temperature transition into the incommensurate phase. The results support the exchange striction model for the ferroelectricity in multiferroic $RM{n}_2{O}_5$ compounds and they show the importance of magnetic frustration as well as the spin-lattice coupling.

References in corpus (8)

• Spin current and magneto-electric effect in non-collinear magnets
• Ferroelectricity in spiral magnets
• Role of the Dzyaloshinskii-Moriya interaction in multiferroic perovskites
• Spin structure and magnetic frustration in multiferroic RMn2O5 (R = Tb, Ho, Dy)
• Ferroelectricity induced by acentric spin-density waves in YMn${}_2$O${}_5$
• Structural Anomalies at the Magnetic and Ferroelectric Transitions in $RM{n}_2{O}_5$ (R=Tb, Dy, Ho)
• Pressure induced enhancement of ferroelectricity in multiferroic $R$Mn${}_2$O${}_5$($R$=Tb,Dy, and Ho)
• Magnetoelastic Effects and Magnetic Phase Diagram of Multiferroic $DyM{n}_2{O}_5$

Cited by in corpus (11)

• Multiferroicity, The coupling between magnetic and polarization
• Symmetry Analysis for the Ruddlesden-Popper Systems, Ca3Mn2O7 and Ca3Ti2O7
• Robust Ferroelectric State in Multiferroic Mn${}_{1-x}$Zn${}_x$WO${}_4$
• Complex Spin Structures and Origin of the Magneto-Electric Coupling in YMn2O5
• Phase transitions and ferroelectrics: revival and the future in the field
• Magnetic orders and spin-flop transitions in the cobalt doped multiferroic $\mathrm{M}{\mathrm{n}}_{1-\mathrm{x}}\mathrm{C}{\mathrm{o}}_{\mathrm{x}}\mathrm{W}{\mathrm{O}}_4$
• Magnetic and multiferroic phases of single-crystalline Mn${}_{0.85}$Co${}_{0.15}$WO${}_4$
• The complex multiferroic phase diagram of Mn${}_{1-x}$Co${}_x$WO${}_4$
• Dynamical magnetoelectric effects induced by the Dzyaloshinskii-Moriya interaction in multiferroics
• Observation of universal topological magnetoelectric switching in multiferroic GdMn2O5
• Stress-induced magnetic domain selection reveals a conical ground state for the multiferroic phase of Mn2GeO4