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Effect of Y substitution in La-Ca-Mn-O perovskites showing giant magnetoresistance
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| dc.contributor.author | Mahendiran, R
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| dc.contributor.author | Mahesh, R
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| dc.contributor.author | Raychaudhuri, A K
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| dc.contributor.author | Rao, C N R
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| dc.date.accessioned | 2012-11-20T09:14:18Z | |
| dc.date.available | 2012-11-20T09:14:18Z | |
| dc.date.issued | 1996 | |
| dc.identifier | 0163-1829 | en_US |
| dc.identifier.citation | Physical Review B 53(18), 12160-12165 (1996) | en_US |
| dc.identifier.uri | https://libjncir.jncasr.ac.in/xmlui/10572/1014 | |
| dc.description | Restricted Access | en_US |
| dc.description.abstract | Substitution of yttrium (Y3+) in La-Ca-Mn-O perovskites of the ABO3 structure markedly affects the crystal structure and lattice constants as well as the resistivity (ρ), ferromagnetic transition temperature (Tc), and the temperature corresponding to the insulator-metal-like transition (Tp). The two important parameters which control the electronic transport and the magnetic behavior are the Mn4+ content and the effective radius of the A-site cation. The substitution by Y, which changes the A-site radius, is compared to pressure effect. For certain Y concentrations we observe substantial enhancement of the negative magnetoresistance at temperatures T<Tc and a large positive magnetoresistance at T≫Tc. © 1996 The American Physical Society | en_US |
| dc.description.uri | http://dx.doi.org/10.1103/PhysRevB.53.12160 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | American Physical Society | en_US |
| dc.rights | © 1996 The American Physical Society | en_US |
| dc.subject | La-Ca-Mn-O perovskites | en_US |
| dc.subject | giant magnetoresistance | en_US |
| dc.title | Effect of Y substitution in La-Ca-Mn-O perovskites showing giant magnetoresistance | en_US |
| dc.type | Article | en_US |
