Formation of pancakelike ising domains and giant magnetic coercivity in ferrimagnetic LuFe2O4

Weida Wu; V. Kiryukhin; H. J. Noh; K. T. Ko; J. H. Park; W. Ratcliff; P. A. Sharma; N. Harrison; Y. J. Choi; Y. Horibe; S. Lee; S. Park; H. T. Yi; C. L. Zhang; S. W. Cheong

doi:10.1103/PhysRevLett.101.137203

Formation of pancakelike ising domains and giant magnetic coercivity in ferrimagnetic LuFe2O4

Weida Wu, V. Kiryukhin, H. J. Noh, K. T. Ko, J. H. Park, W. Ratcliff, P. A. Sharma, N. Harrison, Y. J. Choi, Y. Horibe, S. Lee, S. Park, H. T. Yi, C. L. Zhang, S. W. Cheong

Department of Physics

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93 Citations (Scopus)

Abstract

We have studied quasi-two-dimensional multiferroic LuFe2O4 with strong charge-spin-lattice coupling, in which low-temperature coercivity approaches an extraordinary value of 9T in single crystals. The enhancement of the coercivity is connected to the collective freezing of nanoscale pancakelike ferrimagnetic domains with large uniaxial magnetic anisotropy ("Ising pancakes"). Our results suggest that collective freezing in low-dimensional magnets with large uniaxial anisotropy provides an effective mechanism to achieve enhanced coercivity. This observation may help identify novel approaches for synthesis of magnets with enhanced properties.

Original language	English
Article number	137203
Journal	Physical review letters
Volume	101
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.101.137203
Publication status	Published - 2008 Sept 24

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1103/PhysRevLett.101.137203

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Wu, W., Kiryukhin, V., Noh, H. J., Ko, K. T., Park, J. H., Ratcliff, W., Sharma, P. A., Harrison, N., Choi, Y. J., Horibe, Y., Lee, S., Park, S., Yi, H. T., Zhang, C. L., & Cheong, S. W. (2008). Formation of pancakelike ising domains and giant magnetic coercivity in ferrimagnetic LuFe2O4. Physical review letters, 101(13), Article 137203. https://doi.org/10.1103/PhysRevLett.101.137203

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title = "Formation of pancakelike ising domains and giant magnetic coercivity in ferrimagnetic LuFe2O4",

abstract = "We have studied quasi-two-dimensional multiferroic LuFe2O4 with strong charge-spin-lattice coupling, in which low-temperature coercivity approaches an extraordinary value of 9T in single crystals. The enhancement of the coercivity is connected to the collective freezing of nanoscale pancakelike ferrimagnetic domains with large uniaxial magnetic anisotropy ({"}Ising pancakes{"}). Our results suggest that collective freezing in low-dimensional magnets with large uniaxial anisotropy provides an effective mechanism to achieve enhanced coercivity. This observation may help identify novel approaches for synthesis of magnets with enhanced properties.",

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doi = "10.1103/PhysRevLett.101.137203",

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AU - Wu, Weida

AU - Kiryukhin, V.

AU - Noh, H. J.

AU - Ko, K. T.

AU - Park, J. H.

AU - Ratcliff, W.

AU - Sharma, P. A.

AU - Harrison, N.

AU - Choi, Y. J.

AU - Horibe, Y.

AU - Lee, S.

AU - Park, S.

AU - Yi, H. T.

AU - Zhang, C. L.

AU - Cheong, S. W.

PY - 2008/9/24

Y1 - 2008/9/24

N2 - We have studied quasi-two-dimensional multiferroic LuFe2O4 with strong charge-spin-lattice coupling, in which low-temperature coercivity approaches an extraordinary value of 9T in single crystals. The enhancement of the coercivity is connected to the collective freezing of nanoscale pancakelike ferrimagnetic domains with large uniaxial magnetic anisotropy ("Ising pancakes"). Our results suggest that collective freezing in low-dimensional magnets with large uniaxial anisotropy provides an effective mechanism to achieve enhanced coercivity. This observation may help identify novel approaches for synthesis of magnets with enhanced properties.

AB - We have studied quasi-two-dimensional multiferroic LuFe2O4 with strong charge-spin-lattice coupling, in which low-temperature coercivity approaches an extraordinary value of 9T in single crystals. The enhancement of the coercivity is connected to the collective freezing of nanoscale pancakelike ferrimagnetic domains with large uniaxial magnetic anisotropy ("Ising pancakes"). Our results suggest that collective freezing in low-dimensional magnets with large uniaxial anisotropy provides an effective mechanism to achieve enhanced coercivity. This observation may help identify novel approaches for synthesis of magnets with enhanced properties.

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Formation of pancakelike ising domains and giant magnetic coercivity in ferrimagnetic LuFe2O4

Abstract

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