TY - JOUR
KW - Room temperature
KW - Nanotechnology
KW - Orders of magnitude
KW - Electronic structure
KW - Spin-orbit couplings
KW - Anisotropic deformation
KW - External perturbations
KW - Insulating state
KW - Piezoresistance
KW - Room-temperature resistivity
AU - N Domingo
AU - L López-Mir
AU - M Paradinas
AU - V Holy
AU - J Železný
AU - D Yi
AU - S.J Suresha
AU - J F Liu
AU - C. Rayan Serrao
AU - Ramamoorthy Ramesh
AU - C Ocal
AU - X Marti
AU - G Catalan
AB - Layered iridates have been the subject of intense scrutiny on account of their unusually strong spin-orbit coupling, which opens up a narrow bandgap in a material that would otherwise be a metal. This insulating state is very sensitive to external perturbations. Here, we show that vertical compression at the nanoscale, delivered using the tip of a standard scanning probe microscope, is capable of inducing a five orders of magnitude change in the room temperature resistivity of Sr2IrO4. The extreme sensitivity of the electronic structure to anisotropic deformations opens up a new angle of interest on this material, with the giant and fully reversible perpendicular piezoresistance rendering iridates as promising materials for room temperature piezotronic devices. This journal is © The Royal Society of Chemistry.
BT - Nanoscale
DO - 10.1039/c4nr06954d
LA - eng
M1 - 8
N1 - cited By 12
N2 - Layered iridates have been the subject of intense scrutiny on account of their unusually strong spin-orbit coupling, which opens up a narrow bandgap in a material that would otherwise be a metal. This insulating state is very sensitive to external perturbations. Here, we show that vertical compression at the nanoscale, delivered using the tip of a standard scanning probe microscope, is capable of inducing a five orders of magnitude change in the room temperature resistivity of Sr2IrO4. The extreme sensitivity of the electronic structure to anisotropic deformations opens up a new angle of interest on this material, with the giant and fully reversible perpendicular piezoresistance rendering iridates as promising materials for room temperature piezotronic devices. This journal is © The Royal Society of Chemistry.
PB - Royal Society of Chemistry
PY - 2015
SP - 3453
EP - 3459
T2 - Nanoscale
TI - Giant reversible nanoscale piezoresistance at room temperature in Sr2IrO4 thin films
VL - 7
SN - 20403364
ER -