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arXiv 1408.0103cond-mat.mes-hallcond-mat.mtrl-sci
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超薄La0/ SrRuO3超晶格的电阻开关

Resistive switching in ultra-thin La0.7Sr0.3MnO3 / SrRuO3 superlattices

S. Narayana Jammalamadaka, Johan Vanacken, V. V. Moshchalkov

摘要:

如果能解决数据读写的关键问题,超晶格将在下一代电子和自旋电子器件中发挥重要作用。这种挑战来自于低维个体层与宏观世界的耦合。在这里,我们报告的混合结构的电阻开关特性的研究了超晶格与两个铁磁金属氧化物,La 0.7Sr 0.3MnO 3(LSMO)和SrRuO 3(SRO)的双层。双极电阻开关记忆效应的测量这些LSMO/SRO超晶格,所观察到的开关是由欧姆和空间电荷限制的导电定律。从耐久特性中可以明显看出,该单元的开/关存储窗口大于14,这表明该单元可以可靠地区分高阻态和低阻态之间的存储信息。这一发现可能为基于非易失性电阻存储效应的器件的构建铺平道路。

英文摘要:

Superlattices may play an important role in next generation electronic and spintronic devices if the key-challenge of the reading and writing data can be solved. This challenge emerges from the coupling of low dimensional individual layers with macroscopic world. Here we report the study of the resistive switching characteristics of a of hybrid structure made out of a superlattice with ultrathin layers of two ferromagnetic metallic oxides, La0.7Sr0.3MnO3 (LSMO) and SrRuO3 (SRO). Bipolar resistive switching memory effects are measured on these LSMO/SRO superlattices, and the observed switching is explainable by ohmic and space charge-limited conduction laws. It is evident from the endurance characteristics that the on/off memory window of the cell is greater than 14, which indicates that this cell can reliably distinguish the stored information between high and low resistance states. The findings may pave a way to the construction of devices based on nonvolatile resistive memory effects.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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