Charge density waves enhance the electronic noise of manganites

C. Barone; A. Galdi; N. Lampis; L. Maritato; F. Miletto Granozio; S. Pagano; P. Perna; M. Radovic; U. Scotti di Uccio

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Charge density waves enhance the electronic noise of manganites

机译：电荷密度波增强了锰矿的电子噪声

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The transport and noise properties of Pr_(0.7)Ca_(0.3)MnO_3 epitaxial thin films in the temperature range from room temperature to 160 K are reported. It is shown that both the broadband 1/f noise properties and the dependence of resistance on electric field are consistent with the idea of a collective electrical transport, as in the classical model of sliding charge density waves. On the other hand, the observations cannot be reconciled with standard models of charge ordering and charge melting. Methodologically, it is proposed to consider noise-spectra analysis as a unique tool for the identification of the transport mechanism in such highly correlated systems. On the basis of the results, the electrical transport is envisaged as one of the most effective ways to understand the nature of the insulating charge-modulated ground states in manganites.

机译：报道了Pr_（0.7）Ca_（0.3）MnO_3外延薄膜在室温至160 K温度范围内的传输和噪声特性。结果表明，宽带1 / f噪声特性以及电阻对电场的依赖性都与集体电传输的思想一致，就像在滑动电荷密度波的经典模型中一样。另一方面，这些观察结果与电荷排序和电荷熔化的标准模型不符。在方法上，建议将噪声频谱分析视为在这种高度相关的系统中识别传输机制的独特工具。根据结果，电传输被认为是了解锰矿中绝缘电荷调制基态性质的最有效方法之一。

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来源
《Physical review》 |2009年第11期|115128.1-115128.6|共6页
作者
C. Barone; A. Galdi; N. Lampis; L. Maritato; F. Miletto Granozio; S. Pagano; P. Perna; M. Radovic; U. Scotti di Uccio;
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CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy Dipartimento di Matematica e Informatica, Universita di Salerno, Baronissi, Salerno 84081, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy Dipartimento di Fisica 'E.R. Caianiello,' Universita di Salerno, Baronissi, Salerno 84081, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy Dipartimento di Matematica e Informatica, Universita di Salerno, Baronissi, Salerno 84081, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy Dipartimento di Matematica e Informatica, Universita di Salerno, Baronissi, Salerno 84081, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy;

CNR-INFM Coherentia, Complesso Universitario Monte S. Angelo, Napoli 80126, Italy;

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正文语种 eng
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关键词
noise processes and phenomena; collective modes (e.g., in one-dimensional conductors); manganites;

机译：噪声过程和现象;集体模式（例如在一维导体中）;锰矿;

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机译：电荷密度波凝结作为Eu_（1-x）Sr_xMn0_3（x = 0.50，0.58）锰矿中电荷序数和无序度的量度
2. Anisotropy-induced crossover from Drude conductivity to charge-density-wave excitations in a stripe-type charge-ordered manganite [J] . Rakesh Rana, Parul Pandey, D. S. Rana, Physical review . 2013,第22期

机译：条纹型电荷有序锰矿中各向异性诱导的从Drude电导率到电荷密度波激发的交叉
3. Erratum: Charge-density wave condensate in charge-ordered manganites: Impact of ferromagnetic order and spin-glass disorder (Journal of Physics Condensed Matter (2013) 25 (106004)) (Erratum) [J] . Rana R., Awari N., Pandey P., Journal of Physics. Condensed Matter . 2013,第12期

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4. Sliding charge density waves in manganites? [C] . B. Fisher, J. Genossar, L Patlagan Joint European Magnetic Symposia . 2010

机译：滑动充电密度波在锰脂胎中？
5. Electronic structure and charge density waves in the rare earth (R) tellurides R-telluride(2) and R(2)-telluride(5). [D] . Shin, Kyungyun. 2008

机译：稀土（R）碲化物R-碲（2）和R（2）-碲（5）中的电子结构和电荷密度波。
6. Persistent order due to transiently enhanced nesting in an electronically excited charge density wave [O] . L. Rettig, R. Cortés, J.-H. Chu, -1

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7. Charge density waves enhance the electronic noise of manganites [O] . C. Barone, A. Galdi, N. Lampis, 2009

机译：电荷密度波增强了锰氧化物的电子噪声

Charge density waves enhance the electronic noise of manganites

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