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

Abstract:
We report the complex refractive index of La5/3Sr1/3NiO4 over the terahertz frequency range, obtained using time-domain spectroscopy. Negligible change in the complex refractive index with magnetic flux densities up to 6T was seen, while changes were observed as the lattice temperature was increased from 1.5 K to the charge-ordering temperature at 220 K. The terahertz frequency response therefore originates from the dielectric function rather than the magnetic permeability.
Publication status:
Published

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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Institution:
University of Oxford
Department:
Oxford, MPLS, Physics, Condensed Matter Physics
Role:
Author
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Pages:
852-853
Publication date:
2007-01-01
URN:
uuid:5fe8ffb5-f21b-4d40-b4f4-07d05b0a838b
Source identifiers:
14400
Local pid:
pubs:14400
ISBN:
978-1-4244-1438-3
Keywords:

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