@ARTICLE{Lazuta2011457,
author={Lazuta, A.V. and Ryzhov, V.A. and Kurbakov, A.I. and Khavronin, V.P. and Molkanov, P.L. and Mukovskii, Ya.M. and Pestun, A.E. and Privezentsev, R.V.},
title={Inhomogeneous magnetic state above the Curie temperature of the doped cobaltite La1-xSrxCoO3},
journal={Solid State Phenomena},
year={2011},
volume={168-169},
pages={457-460},
doi={10.4028/www.scientific.net/SSP.168-169.457},
note={cited By 3},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-79951903073&doi=10.4028%2fwww.scientific.net%2fSSP.168-169.457&partnerID=40&md5=a5559a3ece06727f18b24d6e079e4eae},
affiliation={Petersburg Nuclear Physics Institute, RAS, Gatchina, St.Petersburg, 188300, Russian Federation; State Technological University, Moscow Steel and Alloys Institute (MISIS), Moscow 119049, Russian Federation},
abstract={Results of structural neutron diffraction study and data on the transport and magnetic properties (the linear and nonlinear (second and third order) susceptibilities) are reported for the La1-xSrxCoO 3 (x = 0.18 and 0.2) polycrystals. The data on the linear and third-order susceptibilities show indications of a long - range ferromagnetic ordering with the Curie temperature (TC) about 180 K. Measurements of the second harmonic of the magnetization in the parallel ac and steady (H) magnetic fields (M2(H,T)) reveal the appearance of ferromagnetic clusters in a paramagnetic matrix below some temperature (T*) above T C. The characteristics of this clustered state and the stages of its temperature evolution are reliably determined since the non-ferromagnetic matrix affects weakly this state. It is found that a spontaneous nucleation of the ferromagnetic clusters occurs below T*, and their concentration increases sharply on cooling. Upon further decreasing temperature, the isolated clusters coalesce, leading to a percolative - type origination of a ferromagnetism. The M2(H,T) response of isolated clusters and its T-variation, including the onset of the coalescence, are very close to those found in the doped manganites, which supports an assumption on a common origin of the clustered state in these compounds.},
author_keywords={Clustered state;  Cobaltites;  Phase separation;  Phase transitions},
correspondence_address1={Lazuta, A. V.; Petersburg Nuclear Physics Institute, RAS, Gatchina, St.Petersburg, 188300, Russian Federation; email: Alexandr@VL9467.spb.edu},
publisher={Trans Tech Publications Ltd},
issn={10120394},
isbn={9783037850213},
coden={DDBPE},
language={English},
abbrev_source_title={Diffus Def Data Pt B},
document_type={Conference Paper},
source={Scopus},
}

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