001     15616
005     20190625111908.0
024 7 _ |2 pmid
|a pmid:21572202
024 7 _ |2 DOI
|a 10.1088/0957-4484/22/25/254001
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037 _ _ |a PreJuSER-15616
041 _ _ |a eng
082 _ _ |a 530
084 _ _ |2 WoS
|a Nanoscience & Nanotechnology
084 _ _ |2 WoS
|a Materials Science, Multidisciplinary
084 _ _ |2 WoS
|a Physics, Applied
100 1 _ |a Szot, K.
|b 0
|u FZJ
|0 P:(DE-Juel1)VDB2799
245 _ _ |a TiO2-a prototypical memristive material
260 _ _ |a Bristol
|b IOP Publ.
|c 2011
300 _ _ |a 1 - 21
336 7 _ |a Journal Article
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440 _ 0 |a Nanotechnology
|x 0957-4484
|0 4475
|y 25
|v 22
500 _ _ |3 POF3_Assignment on 2016-02-29
500 _ _ |a Record converted from VDB: 12.11.2012
520 _ _ |a Redox-based memristive switching has been observed in many binary transition metal oxides and related compounds. Since, on the one hand, many recent reports utilize TiO(2) for their studies of the memristive phenomenon and, on the other hand, there is a long history of the electronic structure and the crystallographic structure of TiO(2) under the impact of reduction and oxidation processes, we selected this material as a prototypical material to provide deeper insight into the mechanisms behind memristive switching. In part I, we briefly outline the results of the historical and recent studies of electroforming and resistive switching of TiO(2)-based cells. We describe the (tiny) stoichiometrical range for TiO(2 - x) as a homogeneous compound, the aggregation of point defects (oxygen vacancies) into extended defects, and the formation of the various Magnéli phases. Furthermore, we discuss the driving forces for these solid-state reactions from the thermodynamical point of view. In part II, we provide new experimental details about the hierarchical transformation of TiO(2) single crystals into Magnéli phases, and vice versa, under the influence of chemical, electrical and thermal gradients, on the basis of the macroscopic and nanoscopic measurements. Those include thermogravimetry, high-temperature x-ray diffraction (XRD), high-temperature conductivity measurements, as well as low-energy electron diffraction (LEED), x-ray photoelectron spectroscopy (XPS), and LC-AFM (atomic force microscope equipped with a conducting tip) studies. Conclusions are drawn concerning the relevant parameters that need to be controlled in order to tailor the memristive properties.
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700 1 _ |a Rogala, M.
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700 1 _ |a Speier, W.
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700 1 _ |a Klusek, Z.
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700 1 _ |a Besmehn, A.
|b 4
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|0 P:(DE-Juel1)VDB17427
700 1 _ |a Waser, R.
|b 5
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|0 P:(DE-Juel1)131022
773 _ _ |a 10.1088/0957-4484/22/25/254001
|g Vol. 22, p. 1 - 21
|p 1 - 21
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|0 PERI:(DE-600)1362365-5
|t Nanotechnology
|v 22
|y 2011
|x 0957-4484
856 7 _ |u http://dx.doi.org/10.1088/0957-4484/22/25/254001
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914 1 _ |y 2011
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