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Title: Novel bias-field-free spin transfer oscillator

Two versions of magnetic field free spin torque oscillators with in- and out-of-plane spin polarizers are proposed. The field free spin torque oscillators comprise two spin valve stacks with a common free magnetic layer featuring an out-of-plane anisotropy. Their operation frequencies are controlled by the dimensions of the free layer and can also be tuned by the applied currents. Large and stable magnetization precessional motion of the whole shared free layer for both oscillators are obtained. The structure with in-plane polarizers allows more efficient microwave power extraction of the large in-plane magnetization precession of the free layer.
Authors:
; ; ; ;  [1]
  1. Institute for Microelectronics, TU Wien, Gußhausstraße 27–29/E360, A-1040 Wien (Austria)
Publication Date:
OSTI Identifier:
22273881
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; 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; ANISOTROPY; ELECTRIC CURRENTS; LAYERS; MAGNETIC FIELDS; MAGNETIZATION; MICROWAVE RADIATION; OSCILLATORS; SPIN; SPIN ORIENTATION; TORQUE; VALVES