Helton, Joel S. and Singh, Deepak K. and Nair, Harikrishnan S. and Elizabeth, Suja (2011) Magnetic order of the hexagonal rare-earth manganite Dy(0.5)Y(0.5)MnO(3). In: Physical Review B: Condensed Matter and Materials Physics, 84 (6).
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Abstract
Hexagonal Dy(0.5)Y(0.5)MnO(3), a multiferroic rare-earth manganite with geometrically frustrated antiferromagnetism, has been investigated with single-crystal neutron diffraction measurements. Below 3.4 K magnetic order is observed on both the Mn (antiferromagnetic) and Dy (ferrimagnetic) sublattices that is identical to that of undiluted hexagonal DyMnO(3) at low temperature. The Mn moments undergo a spin reorientation transition between 3.4 K and 10 K, with antiferromagnetic order of the Mn sublattice persisting up to 70 K; the antiferromagnetic order in this phase is distinct from that observed in undiluted (h) DyMnO(3), yielding a qualitatively new phase diagram not seen in other hexagonal rare-earth manganites. A magnetic field applied parallel to the crystallographic c axis will drive a transition from the antiferromagnetic phase into the low-temperature ferrimagnetic phase with little hysteresis.
Item Type: | Journal Article |
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Publication: | Physical Review B: Condensed Matter and Materials Physics |
Publisher: | The American Physical Society |
Additional Information: | Copyright of this article belongs to The American Physical Society. |
Department/Centre: | Division of Physical & Mathematical Sciences > Physics |
Date Deposited: | 16 Sep 2011 07:07 |
Last Modified: | 16 Sep 2011 07:07 |
URI: | http://eprints.iisc.ac.in/id/eprint/40444 |
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