skip to main content

SciTech ConnectSciTech Connect

Title: Spin wave excitation in yttrium iron garnet films with micron-sized antennas

In this paper, we explore spin waves excitation in monolithic structures based on yttrium iron garnet (YIG) films with micro-sized antennas. Samples based on plain and patterned YIG film were fabricated and tested for tangential bias field geometries. We observed spin wave excitation and propagation with wave numbers up to 3.5 × 10{sup 4} rad/cm. The corresponding wavelength is thus shorter more than by one order of magnitude compared to previous experiments with such films. For the sample with a periodic array of nanotrenches, we observed the effect of the shape anisotropy resulting in the shift of the spin wave propagation band in comparison to the unpatterned YIG film. Our results are very promising for the exploitation of short spin waves in YIG and provide great opportunity for significant miniaturization of YIG film based microwave devices.
Authors:
;  [1] ;  [2] ;  [3] ;  [2]
  1. Kotelnikov IRE RAS, Saratov Branch, 410019 Saratov (Russian Federation)
  2. (Russian Federation)
  3. Chernyshevsky Saratov State University, 410012 Saratov (Russian Federation)
Publication Date:
OSTI Identifier:
22420257
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 5; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ANISOTROPY; ANTENNAS; FERRITE GARNETS; FILMS; SPIN WAVES; WAVE PROPAGATION; YTTRIUM COMPOUNDS