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 SM ISO690:2012MCHALWAT, M., ULRICHS, Henning, WALOWSKI, Jakob, BALLANI, Camillo, SHAPOVAL, Oleg M., MOSHNYAGA, Vasily T., MUNZENBERG, Markus G., SAMWER, Konrad H.. Laser-induced changes of nonlinear electronic transport properties in La0.75Ba0.25MnO3 and (La0.6Pr0.4)0.67Ca0.33MnO3. In: Journal of Physics Condensed Matter, 2018, vol. 30, p. 0. ISSN 0953-8984. DOI: https://doi.org/10.1088/1361-648X/aa9fa1 |
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  Journal of Physics Condensed Matter |
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| Volumul 30 / 2018 / ISSN 0953-8984 /ISSNe 1361-648X | |
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| DOI:https://doi.org/10.1088/1361-648X/aa9fa1 | |
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We report photoinduced effects in nonlinear third harmonic ac electric transport-which is a measure for the density of correlated polarons-in thin films of La0.75Ba0.25MnO3 (LBMO) and (La0.6Pr0.4)0.67Ca0.33MnO3 (LPCMO) manganites. Both materials show an enhancement of third harmonic voltage in the vicinity of the metal-to-insulator transition, indicating strong electron-lattice correlations within a phase-separated state. Relatively low laser excitation with a pulse fluence of 11 μJ cm-2 leads to an increase (decrease) in nonlinearity in LBMO (LPCMO). With a high pulse fluence of 8mJ cm-2, we were also able to suppress the correlations in LBMO, which is accompanied by a decrease of third harmonic voltage by 2.5% in our time-averaging measurement technique. |
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| Cuvinte-cheie correlated polarons, laser excitation, LBMO, LPCMO, manganites, nonlinear electric transport |
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<?xml version='1.0' encoding='utf-8'?> <oai_dc:dc xmlns:dc='http://purl.org/dc/elements/1.1/' xmlns:oai_dc='http://www.openarchives.org/OAI/2.0/oai_dc/' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xsi:schemaLocation='http://www.openarchives.org/OAI/2.0/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd'> <dc:creator>McHalwat, M.</dc:creator> <dc:creator>Ulrichs, H.</dc:creator> <dc:creator>Walowski, J.</dc:creator> <dc:creator>Ballani, C.</dc:creator> <dc:creator>Şapoval, O.M.</dc:creator> <dc:creator>Moşneaga, V.</dc:creator> <dc:creator>Munzenberg, M.</dc:creator> <dc:creator>Samwer, K.</dc:creator> <dc:date>2018-01-31</dc:date> <dc:description xml:lang='en'><p>We report photoinduced effects in nonlinear third harmonic ac electric transport-which is a measure for the density of correlated polarons-in thin films of La<sub>0.75</sub>Ba<sub>0.25</sub>MnO<sub>3</sub> (LBMO) and (La<sub>0.6</sub>Pr<sub>0.4</sub>)<sub>0.67</sub>Ca<sub>0.33</sub>MnO<sub>3</sub> (LPCMO) manganites. Both materials show an enhancement of third harmonic voltage in the vicinity of the metal-to-insulator transition, indicating strong electron-lattice correlations within a phase-separated state. Relatively low laser excitation with a pulse fluence of 11 μJ cm<sup>-2</sup> leads to an increase (decrease) in nonlinearity in LBMO (LPCMO). With a high pulse fluence of 8mJ cm<sup>-2</sup>, we were also able to suppress the correlations in LBMO, which is accompanied by a decrease of third harmonic voltage by 2.5% in our time-averaging measurement technique.</p></dc:description> <dc:identifier>10.1088/1361-648X/aa9fa1</dc:identifier> <dc:source>Journal of Physics Condensed Matter () 0-0</dc:source> <dc:subject>correlated polarons</dc:subject> <dc:subject>laser excitation</dc:subject> <dc:subject>LBMO</dc:subject> <dc:subject>LPCMO</dc:subject> <dc:subject>manganites</dc:subject> <dc:subject>nonlinear electric transport</dc:subject> <dc:title>Laser-induced changes of nonlinear electronic transport properties in La0.75Ba0.25MnO3 and (La0.6Pr0.4)0.67Ca0.33MnO3</dc:title> <dc:type>info:eu-repo/semantics/article</dc:type> </oai_dc:dc>
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