@ARTICLE{Ryzhov2014,
author={Ryzhov, V.A. and Lazuta, A.V. and Khavronin, V.P. and Molkanov, P.L. and Mukovskii, Ya.M.},
title={Magnetic phase transition and clustered state in Ca-doped lanthanum cobaltite and manganite with insulator ground states.},
journal={Journal of Physics Condensed Matter},
year={2014},
volume={26},
number={7},
doi={10.1088/0953-8984/26/7/076001},
art_number={076001},
note={cited By 2},
url={https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893389071&doi=10.1088%2f0953-8984%2f26%2f7%2f076001&partnerID=40&md5=78fe74df45d6a2704f73e0fb4dd1babf},
affiliation={Petersburg Nuclear Physics Institute, NRC 'Kurchatov Institute', Orlova Coppice, Gatchina 188300, Russian Federation; National Research and Technology University 'Misis', Leninskii Prospekt 4, Moscow 119049, Russian Federation},
abstract={The transport and magnetic properties (ac linear and nonlinear (second and third orders) susceptibilities) are presented for La0.8Ca 0.2MnO3 and La0.8Ca0.2CoO 3 single crystals with insulator ground states. The ferromagnetic (FM) clusters with similar magnetic characteristics originate in the paramagnetic phases of both compounds below some temperature T*. At high temperatures the FM clusters arise at the preferable sites that can be attributed to the chemical inhomogeneities, their density being weakly T-dependent. On cooling a homogeneous nucleation of the FM clusters develops below a definite temperature T# that is characterized by a fast growth of their density. These two stages are observed in both compounds. At the third stage a coalescence of the FM clusters starts in the doped cobaltite, whereas in the manganite the development of matrix FM ordering occurs which changes a cluster's behavior. The indicated features support the common nature of the cluster state in the doped cobaltite and manganite. The difference in their evolution is a consequence of the different magnetic properties of the matrices in the manganite and cobaltite. © 2014 IOP Publishing Ltd.},
author_keywords={magnetic phase separation;  magnetic phase transitions;  response to ac field-linear and nonlinear susceptibilities;  transition metal oxides},
correspondence_address1={Petersburg Nuclear Physics Institute, NRC 'Kurchatov Institute', Orlova Coppice, Gatchina 188300, Russian Federation},
issn={09538984},
coden={JCOME},
language={English},
abbrev_source_title={J Phys Condens Matter},
document_type={Article},
source={Scopus},
}

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The ferromagnetic (FM) clusters with similar magnetic characteristics originate in the paramagnetic phases of both compounds below some temperature T*. At high temperatures the FM clusters arise at the preferable sites that can be attributed to the chemical inhomogeneities, their density being weakly T-dependent. On cooling a homogeneous nucleation of the FM clusters develops below a definite temperature T# that is characterized by a fast growth of their density. These two stages are observed in both compounds. At the third stage a coalescence of the FM clusters starts in the doped cobaltite, whereas in the manganite the development of matrix FM ordering occurs which changes a cluster's behavior. The indicated features support the common nature of the cluster state in the doped cobaltite and manganite. The difference in their evolution is a consequence of the different magnetic properties of the matrices in the manganite and cobaltite. © 2014 IOP Publishing Ltd.","author_keywords":"magnetic phase separation; magnetic phase transitions; response to ac field-linear and nonlinear susceptibilities; transition metal oxides","correspondence_address1":"Petersburg Nuclear Physics Institute, NRC 'Kurchatov Institute', Orlova Coppice, Gatchina 188300, Russian Federation","issn":"09538984","coden":"JCOME","language":"English","abbrev_source_title":"J Phys Condens Matter","document_type":"Article","source":"Scopus","bibtex":"@ARTICLE{Ryzhov2014,\r\nauthor={Ryzhov, V.A. and Lazuta, A.V. and Khavronin, V.P. and Molkanov, P.L. and Mukovskii, Ya.M.},\r\ntitle={Magnetic phase transition and clustered state in Ca-doped lanthanum cobaltite and manganite with insulator ground states.},\r\njournal={Journal of Physics Condensed Matter},\r\nyear={2014},\r\nvolume={26},\r\nnumber={7},\r\ndoi={10.1088/0953-8984/26/7/076001},\r\nart_number={076001},\r\nnote={cited By 2},\r\nurl={https://www.scopus.com/inward/record.uri?eid=2-s2.0-84893389071&doi=10.1088%2f0953-8984%2f26%2f7%2f076001&partnerID=40&md5=78fe74df45d6a2704f73e0fb4dd1babf},\r\naffiliation={Petersburg Nuclear Physics Institute, NRC 'Kurchatov Institute', Orlova Coppice, Gatchina 188300, Russian Federation; National Research and Technology University 'Misis', Leninskii Prospekt 4, Moscow 119049, Russian Federation},\r\nabstract={The transport and magnetic properties (ac linear and nonlinear (second and third orders) susceptibilities) are presented for La0.8Ca 0.2MnO3 and La0.8Ca0.2CoO 3 single crystals with insulator ground states. The ferromagnetic (FM) clusters with similar magnetic characteristics originate in the paramagnetic phases of both compounds below some temperature T*. At high temperatures the FM clusters arise at the preferable sites that can be attributed to the chemical inhomogeneities, their density being weakly T-dependent. On cooling a homogeneous nucleation of the FM clusters develops below a definite temperature T# that is characterized by a fast growth of their density. These two stages are observed in both compounds. At the third stage a coalescence of the FM clusters starts in the doped cobaltite, whereas in the manganite the development of matrix FM ordering occurs which changes a cluster's behavior. The indicated features support the common nature of the cluster state in the doped cobaltite and manganite. 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