Quasiparticle relaxation dynamics in n-type superconductor La2-xCexCuO4

Cao N; Long YB; Zhang ZG; Yuan J; Gao LJ; Zhao BR; Zhao SP; Yang QS; Zhao J; Fu PM

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Quasiparticle relaxation dynamics in n-type superconductor La2-xCexCuO4

机译：n型超导体La2-xCexCuO4中的准粒子弛豫动力学

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We have studied the photoexcited carrier dynamics in the electron-doped La2-xCexCuO4 (LCCO). In general, there is a slowing down of the relaxation as the temperature decreases. However, the quasiparticle lifetime is found to exhibit a quasi-divergence as the temperature approaches T-c from below. We have also observed picosecond rise time in the electron-doped LCCO, which is attributed to the Cooper pair breaking dynamics. The experimental results are analyzed by Rothwarf-Taylor model.

机译：我们已经研究了电子掺杂的La2-xCexCuO4（LCCO）中的光激发载流子动力学。通常，随着温度降低，弛豫的速度变慢。但是，当温度从下方接近T-c时，发现准粒子寿命表现出准偏差。我们还观察到了电子掺杂LCCO的皮秒上升时间，这归因于库珀对的断裂动力学。用Rothwarf-Taylor模型分析了实验结果。

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《Physica, C. Superconductivity and its applications》 |2008年第12期|共4页
作者
Cao N; Long YB; Zhang ZG; Yuan J; Gao LJ; Zhao BR; Zhao SP; Yang QS; Zhao J; Fu PM;
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正文语种 eng
中图分类超导电性;
关键词
quasiparticle relaxation; n-Type superconductor;

机译：准粒子弛豫;n型超导体;

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1. Quasiparticle relaxation dynamics in n-type superconductor La2-xCexCuO4 [J] . Cao N, Long YB, Zhang ZG, Physica, C. Superconductivity and its applications . 2008,第11a12期

机译：n型超导体La2-xCexCuO4中的准粒子弛豫动力学
2. Quasiparticle relaxation dynamics in spin-density-wave and superconducting SmFeAsO_(1-x)F_x single crystals [J] . T. Mertelj, P. Kusar, V. V. Kabanov, Physical review . 2010,第22期

机译：自旋密度波和超导SmFeAsO_（1-x）F_x单晶的准粒子弛豫动力学
3. Distinct Pseudogap And Quasiparticle Relaxation Dynamics In The Superconducting State Of Nearly Optimally Doped Smfeaso_(0.8)f_(0.2) Single Crystals [J] . T. Mertelj, V. V. Kabanov, C. Gadermaier, Physical review letters . 2009,第11期

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4. Local and global effects of quantum impurities on the quasiparticle tunneling spectra of p-type and n-type cuprate superconductors [C] . N.-C. Yeh, C.-T. Chen, R. P. Vasquez, Conference on Superconducting and Related Oxides: Physics and Nanoengineering V, Jul 8-11, 2002, Seattle, Washington, USA . 2002

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5. Analysis of quasiparticles in the mixed state of a d-wave superconductor and NMR in pores with surface relaxation. [D] . Marinelli, Luca. 2002

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6. Dynamics of correlation-frozen antinodal quasiparticles in superconducting cuprates [O] . Federico Cilento, Giulia Manzoni, Andrea Sterzi, 2018

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7. Ultrafast quasiparticle relaxation dynamics in superconducting iron pnictide Ca(Fe0.944Co0.056)2As2 [O] . Sunil Kumar, L. Harnagea, S. Wurmehl, 2013

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Quasiparticle relaxation dynamics in n-type superconductor La2-xCexCuO4

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