In:
physica status solidi (a), Wiley, Vol. 202, No. 14 ( 2005-11), p. 2776-2780
Abstract:
The resistivity ρ of La 1– x Te x MnO 3 ( x = 0.1, 0.14) is studied using a random resistor network, based on phase separation between ferromagnetic (FM) and paramagnetic (PM) domains. By considering the irregular shape of the domains, a revised method, which is used to find the shortest paths across the sample, leads to a good agreement between the simulated results and experiment data. Moreover, it is found that FM components increase with Te doping, leading to a reduction of the resistivity and a shift of the transition temperature. This method is proved to be valid and the phase separation scenario is shown theoretically to be good enough in describing the electrical conductivity of the doped manganese perovskites. (© 2005 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Type of Medium:
Online Resource
ISSN:
1862-6300
,
1862-6319
DOI:
10.1002/pssa.v202:14
DOI:
10.1002/pssa.200520093
Language:
English
Publisher:
Wiley
Publication Date:
2005
detail.hit.zdb_id:
1481091-8
detail.hit.zdb_id:
208850-2
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