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Resistive switching effect in titanium oxides.

Journal of nanoscience and nanotechnology (2014-04-23)
Zhensen Tang, Yaqing Chi, Liang Fang, Rulin Liu, Xun Yi
PMID24749437
ABSTRACT

Resistive switching (RS) phenomena have been vigorously investigated in a large variety of materials and highlighted for its preeminent potential for the future nonvolatile semiconductor memory applications or reconfigurable logic circuits. Among the various resistive switching materials, the binary metal oxides demonstrate more advantageous for micro- or nano-electronics applications due to their simpler fabrication process and compatibility with conventional CMOS technology, though the mechanisms are controversial due to the diversity of RS effects. This review mainly focuses on the current understanding of the microscopic nature of RS in titanium oxides, in which the working mechanisms can be categorized into thermochemical metallization mechanism, valence change mechanism, and electrostatic/electronic mechanism. The approaches developed to investigate the RS and the specific switching processes related to different mechanisms are addressed. Since titanium oxides are oxygen-vacancy doped semiconductors, the role of defects is analyzed in detail and possible effective strategies to improve the performance of RS are addressed.

MATERIALS
Product Number
Brand
Product Description
IRMM531B
Titanium, IRMM®, certified reference material, 0.5 mm foil
348791
Sigma-Aldrich
Titanium, foil, thickness 0.127 mm, 99.7% trace metals basis
266035
Sigma-Aldrich
Titanium, wire, diam. 1.0 mm, 99.99% trace metals basis
IRMM531C
Titanium, IRMM®, certified reference material, 0.5 mm wire
369489
Sigma-Aldrich
Titanium, foil, thickness 2.0 mm, 99.7% trace metals basis
267902
Sigma-Aldrich
Titanium, wire, diam. 0.81 mm, 99.7% trace metals basis
460400
Sigma-Aldrich
Titanium, wire, diam. 0.25 mm, 99.7% trace metals basis
348848
Sigma-Aldrich
Titanium, foil, thickness 0.025 mm, 99.98% trace metals basis
GF65336700
Titanium, rod, 200mm, diameter 2mm, annealed, 99.6+%
GF76772391
Titanium, rod, 100mm, diameter 10mm, annealed, 99.6+%
GF87716997
Titanium, rod, 100mm, diameter 16mm, as drawn, 99.99+%
GF06082286
Titanium, microfoil, disks, 10mm, thinness 1.0μm, specific density 429μg/cm2, permanent mylar 3.5μm support, 99.6+%
GF03916290
Titanium, rod, 490mm, diameter 2mm, annealed, 99.6+%
GF68670366
Titanium, tube, 1220mm, outside diameter 2.03mm, inside diameter 1.55mm, wall thickness 0.24mm, annealed, 99.6+%
GF82517722
Titanium, tube, 1000mm, outside diameter 6.35mm, inside diameter 4.57mm, wall thickness 0.89mm, annealed, 99.6+%
GF50171318
Titanium, rod, 25mm, diameter 16mm, as drawn, 99.99+%
GF03838282
Titanium, rod, 500mm, diameter 1.5mm, annealed, 99.6+%
GF04311638
Titanium, rod, 100mm, diameter 6mm, annealed, 99.6+%
GF25290581
Titanium, tube, 1000mm, outside diameter 25.4mm, inside diameter 23.62mm, wall thickness 0.89mm, annealed, 99.6+%
GF20882998
Titanium, rod, 200mm, diameter 5mm, annealed, 99.6+%
GF65694426
Titanium, tube, 100mm, outside diameter 1.6mm, inside diameter 1.2mm, wall thickness 0.2mm, hard, 99.6+%
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Titanium, rod, 200mm, diameter 4mm, annealed, 99.6+%
GF34106363
Titanium, rod, 1000mm, diameter 1.5mm, annealed, 99.6+%
GF12929744
Titanium, microfoil, disks, 25mm, thinness 0.25μm, specific density 112.6μg/cm2, permanent mylar 3.5μm support, 99.6+%
GF72503827
Titanium, tube, 100mm, outside diameter 2.03mm, inside diameter 1.63mm, wall thickness 0.2mm, annealed, 99.6+%
GF69259315
Titanium, rod, 500mm, diameter 6mm, annealed, 99.6+%
GF62676759
Titanium, rod, 200mm, diameter 2mm, as drawn, 99.99+%
GF85496664
Titanium, tube, 1000mm, outside diameter 9.5mm, inside diameter 8.2mm, wall thickness 0.65mm, annealed, 99.6+%
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Titanium, tube, 100mm, outside diameter 10.3mm, inside diameter 8.7mm, wall thickness 0.8mm, annealed, 99.6+%
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Titanium, tube, 200mm, outside diameter 4.25mm, inside diameter 3.75mm, wall thickness 0.25mm, annealed, 99.6+%