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Surface phase separ...
Surface phase separation in nanosized charge-ordered manganites
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- Dong, S. (författare)
- Nanjing University, MA 02460 USA
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- Gao, Feng (författare)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska högskolan
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- Wang, Z. Q. (författare)
- Nanjing University, MA 02460 USA
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- Liu, J. -M. (författare)
- Nanjing University, MA 02460 USA
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- Ren, Z. F. (författare)
- Nanjing University, MA 02460 USA
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(creator_code:org_t)
- American Institute of Physics (AIP), 2007
- 2007
- Engelska.
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Ingår i: Applied Physics Letters. - : American Institute of Physics (AIP). - 0003-6951 .- 1077-3118. ; 90:8, s. 082508-
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Recent experiments showed that the robust charge ordering in manganites can be weakened by reducing the grain size down to nanoscale. Weak ferromagnetism was evidenced in both nanoparticles and nanowires of charge-ordered manganites. To explain these observations, a phenomenological model based on surface phase separation is proposed. The relaxation of superexchange interaction on the surface layer allows formation of a ferromagnetic shell, whose thickness increases with decreasing grain size. Possible exchange bias and softening of the ferromagnetic transition in nanosized charge-ordered manganites are predicted. (c) 2007 American Institute of Physics.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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- art (ämneskategori)
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