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Direct and real time probe of photoinduced structure transition in colossal magnetoresistive material

Title: Direct and real time probe of photoinduced structure transition in colossal magnetoresistive material.
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Name(s): Li, Junjie, author
Wang, Xuan, author
Zhou, Haidong, author
Zhou, Jun, author
Cheng, J. G., author
Cao, Jianming, author
Type of Resource: text
Genre: Text
Date Issued: 2016-07-25
Physical Form: computer
online resource
Extent: 1 online resource
Language(s): English
Abstract/Description: We report a direct and real time measurement of photoinduced structure phase transition in single crystal La0.84Sr0.16MnO3 using femtosecond electron diffraction. The melting of orthorhombic lattice ordering under femtosecond optical excitation is found involving two distinct processes with different time scales, an initial fast melting of orthorhombic phase in about 4 ps and a subsequent slower transformation in 90 ps and longer timescales. The fast process is designated as the initial melting of orthorhombic phase induced by the Mn-O bond change that is most likely driven by the quenching of the dynamic Jahn-Teller distortion following the photo-excitation. The slow process is attributed to the growing of newly formed structure domain from the photo-excited sites to the neighboring non-excited orthorhombic sites. Published by AIP Publishing.
Identifier: FSU_libsubv1_wos_000381688900016 (IID), 10.1063/1.4960100 (DOI)
Keywords: complexes, Conductivity, distortions, insulator-metal transition, la1-xcaxmno3, la1-xsrxmno3, manganites, perovskites, phase-transition, pr0.7ca0.3mno3
Publication Note: The publisher’s version of record is available at http://www.dx.doi.org/10.1063/1.4960100
Persistent Link to This Record: http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000381688900016
Owner Institution: FSU
Is Part Of: Applied Physics Letters.
0003-6951
Issue: iss. 4, vol. 109

Choose the citation style.
Li, J., Wang, X., Zhou, H., Zhou, J., Cheng, J. G., & Cao, J. (2016). Direct and real time probe of photoinduced structure transition in colossal magnetoresistive material. Applied Physics Letters. Retrieved from http://purl.flvc.org/fsu/fd/FSU_libsubv1_wos_000381688900016