Local magnetism and magnetoelectric effect in HoMnO3 studied with muon-spin relaxation

Abstract

We present the results of muon-spin relaxation (muSR) measurements on the hexagonal manganite HoMnO3. Features in the temperature-dependent relaxation rate, lambda, correlate with the magnetic transitions at 76 K, 38 K and 34 K. The highest temperature transition, associated with the ordering of Mn3+ moments has the largest effect on lambda. The application of a static electric field of E=10^4 Vm^-1 below T=50 K causes a small reduction in lambda which is suggestive of coupling between ferroelectric and magnetic domain walls in the ordered state of the material.

6 pages, 3 figures

References in corpus (4)

• Spin dynamics and magnetic order in magnetically frustrated Tb2Sn2O7
• Direct evidence for a dynamical ground state in the highly frustrated Tb${}_2$Sn${}_2$O${}_7$ pyrochlore
• The nature of Ho magnetism in multiferroic HoMnO3
• Magnetism in Geometrically Frustrated YMnO3 Under Hydrostatic Pressure Studied with Implanted Muons

Cited by in corpus (3)

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