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Antiferromagnetism ...
Antiferromagnetism in Zn-doped La2CuO4 as observed by muon spin resonance spectroscopy
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- Ekström, Mikael (author)
- Mälardalens högskola,Akademin för innovation, design och teknik,Uppsala University, Sweden
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- Hartmann, Ola (author)
- Uppsala University, Sweden
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- Karlsson, Erik (author)
- Uppsala University, Sweden
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- Lidström, Erik (author)
- Uppsala University, Sweden
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- Granberg, Per (author)
- Uppsala University, Sweden
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- Nygren, M (author)
- Mälardalens högskola,Akademin för innovation, design och teknik,Stockholm University, Sweden
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(creator_code:org_t)
- 2001
- 2001
- English.
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In: Physical Review B - Condensed Matter and Materials Physics. - 0163-1829. ; 64:18, s. 1845221-1845226
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The local fields seen by positive muons implanted in Zn-doped La2CuO4 show a distribution with a main peak attributed to muon sites far from the Zn ions and a satellite structure corresponding to muons residing closer to the Zn. The temperature dependence indicates a strong loss of magnetic order for Cu moments near the Zn atoms. The data can be understood in terms of a model where a Zn ion not only introduces a vacancy in the magnetic Cu lattice but also creates a RKKY-type disturbance. The electron spin polarization around the Zn ions induces a change of the magnetic moments on surrounding Cu ions. The AF lattice is found to be strongly perturbed within a radius of 10 Angstrom around each Zn ion. Possible consequences for the superconductivity of the corresponding Sr-doped materials are discussed.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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