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Tendency of temperature on nano‐pillar for spin transfer torque memory
Author(s) -
Ha SeungSeok,
You ChunYeol
Publication year - 2007
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.200777267
Subject(s) - pillar , nano , quantum tunnelling , dissipation , radius , condensed matter physics , joule heating , joule (programming language) , spin transfer torque , spin (aerodynamics) , materials science , electron , torque , nanotechnology , physics , power (physics) , thermodynamics , composite material , engineering , quantum mechanics , magnetic field , mechanical engineering , computer security , magnetization , computer science
This study perform numerical analysis for a Joule heated nano‐pillar system, which has a tunneling barrier, using the hot electrons' dissipation concept. The main focus was on the temperature dependence of the radius, thickness of the nano‐pillar and input power using the finite element method. The published experimental conditions were considered for the calculations. It was found that the peak temperature T ( t = t p ) depends on the dimensions of the nano‐pillar and input power. Surprisingly, the increase in temperature was in the order of only 1 Kelvin. The reason for such a small increase in temperature is discussed. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)