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Role of oxygen vaca...
Role of oxygen vacancies in cr-doped SrTiO3 for resistance-change memory
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- Janousch, Markus (författare)
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
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- Meijer, G. Ingmar (författare)
- IBM Research, Zurich Research Laboratory, Rüschlikon, Switzerland
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- Staub, Urs (författare)
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
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- Delley, Bernard (författare)
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
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- Karg, Siegfried F. (författare)
- IBM Research, Zurich Research Laboratory, Rüschlikon, Switzerland
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- Andreasson, Björn Pererik, 1979- (författare)
- Swiss Light Source, Paul Scherrer Institut, Villigen, Switzerland
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(creator_code:org_t)
- Weinheim : Wiley-VCH Verlagsgesellschaft, 2007
- 2007
- Engelska.
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Ingår i: Advanced Materials. - Weinheim : Wiley-VCH Verlagsgesellschaft. - 0935-9648 .- 1521-4095. ; 19:17, s. 2232-2235
- Relaterad länk:
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http://arxiv.org/pdf...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- A high density of oxygen vacancies has been found in an experiment to determine the path of electrical conduction in Cr-doped SrTiO3 memory cells. The Cr acts as a seed for the localization of oxygen vacancies, leading to a statistically homogeneous distribution of charge carriers within the path. This warrants a controllable doping profile and improved device scaling down to the nanometer scale. The combination of laterally resolved micro-X-ray absorption spectroscopy and thermal imaging concludes that the resistance switching in Cr-doped SrTiO3 originates from an oxygen-vacancy drift to/from the electrode that was used as anode during the conditioning process. The experiments shows that this oxygen vacancy concept is crucial for the entire class of transition-metal-oxide-based bipolar resistance-change memory.
Ämnesord
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Nyckelord
- Metallic Conductivity
- Data storage
- Perovskites
- Transition metals
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- ref (ämneskategori)
- art (ämneskategori)
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