Title: Fresnel diffraction of spin waves

Journal Article · · Physical Review B
 [1];  [2];  [3];  [4];  [1]
  1. Univ. San Francisco de Quito, Quito (Ecuador)
  2. Argonne National Lab. (ANL), Argonne, IL (United States); Univ. of Delaware, Newark, DE (United States)
  3. Argonne National Lab. (ANL), Argonne, IL (United States)
  4. Univ. de Strasbourg, Strasbourg Cedex (France)

Here, the propagation of magnetostatic forward volume waves excited by a constricted coplanar waveguide is studied via inductive spectroscopy techniques. A series of devices consisting of pairs of submicrometer size antennae is used to perform a discrete mapping of the spin wave amplitude in the plane of a 30-nm thin YIG film. We found that the spin wave propagation remains well focused in a beam shape of width comparable to the constriction length and that the amplitude within the constriction displays oscillations, two features which are explained in terms of near-field Fresnel diffraction theory.

Research Organization:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
Agence Nationale de la recherche (ANR); USDOE; USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1489408
Journal Information:
Physical Review B, Journal Name: Physical Review B Journal Issue: 14 Vol. 98; ISSN 2469-9950; ISSN PRBMDO
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

References (41)

Spin wave propagation in perpendicularly magnetized nm-thick yttrium iron garnet films journal March 2018
Insulating Nanomagnets Driven by Spin Torque journal December 2016
Excitation of coherent propagating spin waves by pure spin currents journal January 2016
Realization of a spin-wave multiplexer journal April 2014
Magnon transistor for all-magnon data processing journal August 2014
Spin-wave-beam driven synchronization of nanocontact spin-torque oscillators journal December 2015
Magnetic domain walls as reconfigurable spin-wave nanochannels journal February 2016
Magnon spintronics journal June 2015
Nanoscale spectrum analyzer based on spin-wave interference journal August 2017
Microwave excitation of spin wave beams in thin ferromagnetic films journal March 2016
Epitaxial patterning of nanometer-thick Y 3 Fe 5 O 12 films with low magnetic damping journal January 2016
Realization of spin-wave logic gates journal January 2008
Nano-optics with spin waves at microwave frequencies journal June 2008
Ferromagnetic resonance of sputtered yttrium iron garnet nanometer films journal May 2014
Goos-Hänchen effect and bending of spin wave beams in thin magnetic films journal December 2014
Spin waves in micro-structured yttrium iron garnet nanometer-thick films journal May 2015
Pattern recognition with magnonic holographic memory device journal April 2015
Spin-wave logic devices based on isotropic forward volume magnetostatic waves journal May 2015
Spin wave amplification using the spin Hall effect in permalloy/platinum bilayers journal May 2016
Bias-free spin-wave phase shifter for magnonic logic journal June 2016
Spin-wave propagation in ultra-thin YIG based waveguides journal February 2017
Spin waves with large decay length and few 100 nm wavelengths in thin yttrium iron garnet grown at the wafer scale journal July 2017
Linear and nonlinear diffraction of dipolar spin waves in yttrium iron garnet films observed by space- and time-resolved Brillouin light scattering journal May 2000
Magnon focusing in thin ferromagnetic films journal December 2006
Radiation of spin waves from the open end of a microscopic magnetic-film waveguide journal July 2009
Spin-wave transduction at the submicrometer scale: Experiment and modeling journal January 2010
Goos-Hänchen shift of a spin-wave beam transmitted through anisotropic interface between two ferromagnets journal January 2017
Excitation and tailoring of diffractive spin-wave beams in NiFe using nonuniform microwave antennas journal September 2017
Nondiffractive Subwavelength Wave Beams in a Medium with Externally Controlled Anisotropy journal May 2010
Nonlinear Emission of Spin-Wave Caustics from an Edge Mode of a Microstructured Co 2 Mn 0.6 Fe 0.4 Si Waveguide journal February 2013
Snell’s Law for Spin Waves journal July 2016
Spin Wave Power Flow and Caustics in Ultrathin Ferromagnets with the Dzyaloshinskii-Moriya Interaction journal November 2016
Spin-wave logic devices based on isotropic forward volume magneto-static waves text January 2015
Microwave excitation of spin wave beams in thin ferromagnetic films text January 2015
Epitaxial patterning of nanometer-thick Y3Fe5O12 films with low magnetic damping text January 2015
Spin wave amplification using the spin Hall effect in permalloy/platinum bilayers text January 2016
Bias-free spin-wave phase shifter for magnonic logic text January 2016
Spin wave power flow and caustics in ultrathin ferromagnets with the Dzyaloshinskii-Moriya interaction text January 2016
Goos-Hanchen shift of a spin-wave beam transmitted through anisotropic interface between two ferromagnets text January 2016
Insulating nanomagnets driven by spin torque text January 2016
Excitation and tailoring of diffractive spin-wave beams in NiFe using nonuniform microwave antennas text January 2017

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