TY  - JOUR
AU  - Szot, K.
AU  - Speier, W.
AU  - Bihlmayer, G.
AU  - Waser, R.
TI  - Switching the electrical resistance of individual dislocations in single-crystalline SrTiO3
JO  - Nature materials
VL  - 5
SN  - 1476-1122
CY  - Basingstoke
PB  - Nature Publishing Group
M1  - PreJuSER-50923
SP  - 312
PY  - 2006
N1  - Record converted from VDB: 12.11.2012
AB  - The great variability in the electrical properties of multinary oxide materials, ranging from insulating, through semiconducting to metallic behaviour, has given rise to the idea of modulating the electronic properties on a nanometre scale for high-density electronic memory devices. A particularly promising aspect seems to be the ability of perovskites to provide bistable switching of the conductance between non-metallic and metallic behaviour by the application of an appropriate electric field. Here we demonstrate that the switching behaviour is an intrinsic feature of naturally occurring dislocations in single crystals of a prototypical ternary oxide, SrTiO(3). The phenomenon is shown to originate from local modulations of the oxygen content and to be related to the self-doping capability of the early transition metal oxides. Our results show that extended defects, such as dislocations, can act as bistable nanowires and hold technological promise for terabit memory devices.
KW  - Aluminum Oxide: chemistry
KW  - Crystallization
KW  - Electric Conductivity
KW  - Electric Impedance
KW  - Electromagnetic Fields
KW  - Electronics
KW  - Metals: chemistry
KW  - Microscopy, Atomic Force
KW  - Nanotechnology: methods
KW  - Oxides: chemistry
KW  - Oxygen: chemistry
KW  - Strontium: chemistry
KW  - Surface Properties
KW  - Temperature
KW  - Titanium: chemistry
KW  - Metals (NLM Chemicals)
KW  - Oxides (NLM Chemicals)
KW  - strontium titanium oxide (NLM Chemicals)
KW  - Aluminum Oxide (NLM Chemicals)
KW  - Strontium (NLM Chemicals)
KW  - Titanium (NLM Chemicals)
KW  - Oxygen (NLM Chemicals)
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
C6  - pmid:16565712
UR  - <Go to ISI:>//WOS:000236530400023
DO  - DOI:10.1038/nmat1614
UR  - https://juser.fz-juelich.de/record/50923
ER  -