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Title: Nonlinear multiferroic phase shifters for microwave frequencies

A nonlinear microwave phase shifter based on a planar multiferroic composite has been studied. The multiferroic structure is fabricated in the form of a bilayer consisting of yttrium iron garnet and barium strontium titanate. The principle of operation of the device is based on the linear and nonlinear control of the phase shift of the hybrid spin-electromagnetic waves propagating in the bilayer. The linear control is realized with magnetic and electric fields. The nonlinear control is provided by the input power of microwave signal. The device showed a nonlinear phase shift up to 250°, electric field induced phase shift up to 330°, and magnetic field induced phase shift of more than 180°.
Authors:
;  [1] ;  [2]
  1. Department of Physical Electronics and Technology, St. Petersburg Electrotechnical University, St. Petersburg 197376 (Russian Federation)
  2. Department of Physics, Oakland University, Rochester, Michigan 48309 (United States)
Publication Date:
OSTI Identifier:
22283230
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 5; 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; BARIUM COMPOUNDS; ELECTRIC FIELDS; FERRITE GARNETS; FERRITES; LAYERS; MAGNETIC FIELDS; MICROWAVE RADIATION; NONLINEAR PROBLEMS; PHASE SHIFT; SPIN; STRONTIUM TITANATES; WAVE PROPAGATION; YTTRIUM COMPOUNDS