Terahertz-frequency conductivity of charge stripes in the antiferromagnet La5/3Sr1/3NiO4

Lloyd-Hughes, J.; Prabhakaran, D.; Castro-Camus, E.; Boothroyd, A. T.; Johnston, M. B.

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Terahertz-frequency conductivity of charge stripes in the antiferromagnet La5/3Sr1/3NiO4

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2007

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We report the complex refractive index of La5/3Sr 1/3NiO4 over the terahertz frequency range, obtained using time-domain spectroscopy. Negligible change in the complex refractive index with magnetic flux densities up to 6 T was seen, while changes were observed as the lattice temperature was increased from 1.5K to the charge-ordering temperature at 220 K. The terahertz frequency response therefore originates from the dielectric function rather than the magnetic permeability.

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https://dspace-test.anu.edu.au/handle/1885/733746688

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DevOps Pure Testing

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Conference contribution

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Terahertz-frequency conductivity of charge stripes in the antiferromagnet La5/3Sr1/3NiO4

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