Ultrafast Jahn-Teller polaron dynamics in a bi-layered manganite single crystal
Wang, HZ; Deng, DM; Zhang, ZY; Xu, K; Pan, QF; Lin, X; Yan, L; Cao, SX; Cheng, ZX; Jin, ZM; Ma, GH; Jin, ZM (reprint author), Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China.
2016
发表期刊PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS
ISSN1862-6254
卷号10期号:7页码:558-562
文章类型期刊论文
摘要We report the photoinduced ultrafast quasiparticle recombination dynamics of colossal magnetoresistance single crystal La1.2Sr1.8Mn2O7 by using femtosecond time-resolved reflection spectroscopy in a wide range of temperatures. Here, we find the transient reflectivity change Delta R exhibits a competition process of a fast negative component (similar to sub-picosecond) against a slow positive component (similar to nanosecond), as the sample goes from paramagnetic (PM) to ferromagnetic (FM) state with decreasing the temperature. The very fast initial decay of the photoinduced Delta R corresponds to the photoionization of the Jahn-Teller polaronic response, which is unambiguously sensitive to the coupling between electron and lattice in the PM and FM phases in La1.2Sr1.8Mn2O7 single crystal. (C) 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
关键词Polarons Manganites Ultrafast Transient Reflection Spectroscopy
DOI10.1002/pssr.201600143
收录类别SCI
语种英语
WOS记录号WOS:000380225100010
引用统计
文献类型期刊论文
条目标识符http://ir.sinap.ac.cn/handle/331007/26671
专题中科院上海应用物理研究所2011-2018年
通讯作者Jin, ZM (reprint author), Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China.
推荐引用方式
GB/T 7714
Wang, HZ,Deng, DM,Zhang, ZY,et al. Ultrafast Jahn-Teller polaron dynamics in a bi-layered manganite single crystal[J]. PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,2016,10(7):558-562.
APA Wang, HZ.,Deng, DM.,Zhang, ZY.,Xu, K.,Pan, QF.,...&Jin, ZM .(2016).Ultrafast Jahn-Teller polaron dynamics in a bi-layered manganite single crystal.PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS,10(7),558-562.
MLA Wang, HZ,et al."Ultrafast Jahn-Teller polaron dynamics in a bi-layered manganite single crystal".PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS 10.7(2016):558-562.
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