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The Local Jahn-Teller Effect in (La/Sr)n+1MnnO3n+1 (1999)

Louca, Despina ; Egami, T. ; Kwei, G. H.

Springer

Journal of superconductivity 12 (1999), S. 291-293

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ISSN: 1572-9605

Keywords: JT distortions ; lattice polarons ; dimensionality

Source: Springer Online Journal Archives 1860-2000

Topics: Electrical Engineering, Measurement and Control Technology , Physics

Notes: Abstract Lattice polarons play an important role in the mechanism of colossal magnetoresistance in the (La/Sr) n+1Mn n O3n+1 manganites. Local lattice distortions were characterized by the pulsed neutron pair density function (PDF) analysis. The result shows that the doped holes form polarons related to the Jahn–Teller (JT) effect, both in the two-dimensional layered crystals (n=2) and in the perovskites (n=∞). The temperature effects are also similar in both systems suggesting that lattice polarons are largely independent of the crystal symmetry.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1023/A:1007728610700

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