Magnetotransport and magnetic properties of weak ferromagnetic semiconductors: Ca doped LaCrO3

Alvarez, G; Wang, X; Peleckis, G; Dou, S; Zhu, J; Lin, ZW

Magnetotransport and magnetic properties of weak ferromagnetic semiconductors: Ca doped LaCrO3

Alvarez, G Wang, X Peleckis, G Dou, S Zhu, J Lin, ZW

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Publisher:: American Institute of Physics
Publication Type:: Journal Article
Citation:: Alvarez Gustavo et al. 2008, 'Magnetotransport and magnetic properties of weak ferromagnetic semiconductors: Ca doped LaCrO3', American Institute of Physics, vol. 103, no. 7, pp. 07B916-1-07B916-3.
Issue Date:: 2008

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Field	Value	Language
dc.contributor.author	Alvarez, G	en_US
dc.contributor.author	Wang, X	en_US
dc.contributor.author	Peleckis, G	en_US
dc.contributor.author	Dou, S	en_US
dc.contributor.author	Zhu, J	en_US
dc.contributor.author	Lin, ZW	en_US
dc.date.accessioned	2010-07-13T08:48:34Z
dc.date.available	2010-07-13T08:48:34Z
dc.date.issued	2008	en_US
dc.identifier	2008004558	en_US
dc.identifier.citation	Alvarez Gustavo et al. 2008, 'Magnetotransport and magnetic properties of weak ferromagnetic semiconductors: Ca doped LaCrO3', American Institute of Physics, vol. 103, no. 7, pp. 07B916-1-07B916-3.	en_US
dc.identifier.issn	0021-8979	en_US
dc.identifier.other	C1	en_US
dc.identifier.uri	http://hdl.handle.net/10453/12547
dc.description.abstract	We report the magnetic and magnetotransport properties of Ca doped La1-xCaxCrO3 (x=0, 0.1, 0.2, and 0.3). Both the magnetic and transport properties are very sensitive to Ca substitution. The Neel temperature TN decreases substantially with increasing calcium doping concentration from 290 to 160 K. A weak ferromagnetic state with large coercive fields of up to 3 T is present for the Ca doped LaCrO3. The temperature dependence of the resistivity shows that all the Ca doped compounds are semiconducting and their resistivities decrease with increasing Ca for low doping levels. The resistivity curves show thermally activated behavior and a variable range hopping behavior at high temperatures. The magnetotransport measurements show a negative magnetoresistance. Furthermore, an anomalous peak was observed in the field dependence of magnetoresistance for the LCCO materials.	en_US
dc.publisher	American Institute of Physics	en_US
dc.relation.ispartof	Verified OK	en_US
dc.relation.ispartof	Journal of Applied Physics	en_US
dc.relation.isbasedon	https://aip.scitation.org/doi/10.1063/1.2837624	en_US
dc.rights	The following article has been submitted to/accepted by Journal of Applied Physics. After it is published, it will be found at https://aip.scitation.org/doi/10.1063/1.2837624 .	en_US
dc.subject.classification	Power and Energy Systems Engineering (excl. Renewable Power)	en_US
dc.title	Magnetotransport and magnetic properties of weak ferromagnetic semiconductors: Ca doped LaCrO3	en_US
dc.type	Journal article
utslib.citation.volume	103	en_US
utslib.citation.number	7	en_US
utslib.location	USA	en_US
utslib.citation.startpage	07B916-1	en_US
utslib.citation.endpage	07B916-3	en_US
utslib.identifier.org	FEIT.School of Elec, Mech and Mechatronic Systems	en_US
utslib.for	090607	en_US
utslib.percentage	50	en_US
utslib.copyright.status	closed_access

Abstract:

We report the magnetic and magnetotransport properties of Ca doped La1-xCaxCrO3 (x=0, 0.1, 0.2, and 0.3). Both the magnetic and transport properties are very sensitive to Ca substitution. The Neel temperature TN decreases substantially with increasing calcium doping concentration from 290 to 160 K. A weak ferromagnetic state with large coercive fields of up to 3 T is present for the Ca doped LaCrO3. The temperature dependence of the resistivity shows that all the Ca doped compounds are semiconducting and their resistivities decrease with increasing Ca for low doping levels. The resistivity curves show thermally activated behavior and a variable range hopping behavior at high temperatures. The magnetotransport measurements show a negative magnetoresistance. Furthermore, an anomalous peak was observed in the field dependence of magnetoresistance for the LCCO materials.

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http://hdl.handle.net/10453/12547