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Title: Magnetic configuration dependence of magnetoresistance in a Fe-porphyrin-like carbon nanotube spintronic device

By using nonequilibrium Green's functions in combination with the density functional theory, we investigate the spin-dependent transport properties in a Fe-porphyrin-like carbon nanotube spintronic device. The results show that magnetoresistance ratio is strongly dependent on the magnetic configuration of the Fe-porphyrin-like carbon nanotube. Under the application of the external magnetic field, the magnetoresistance ratio of the device can be increased from about 19% to about 1020% by tuning the magnetic configuration in the device. Our results confirm that the magnetic configuration is a key factor for obtaining a high-performance spintronic device.
Authors:
;  [1]
  1. Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, Department of Applied Physics, Hunan University, Changsha 410082 (China)
Publication Date:
OSTI Identifier:
22280606
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; 77 NANOSCIENCE AND NANOTECHNOLOGY; CARBON NANOTUBES; DENSITY FUNCTIONAL METHOD; GREEN FUNCTION; IRON COMPOUNDS; MAGNETIC FIELDS; MAGNETORESISTANCE; PORPHYRINS; SPACE DEPENDENCE; SPIN