Magnonic crystal wave guide with large spin-wave propagation velocity in CoFeB

Schwarze, T.; Grundler, D.
June 2013
Applied Physics Letters;6/3/2013, Vol. 102 Issue 22, p222412
Academic Journal
Propagating spin-wave spectroscopy is reported for two-dimensional CoFeB antidot lattices (ADLs) with perpendicular-to-plane magnetization. The magnonic crystals consist of square lattices of 190 nm diameter holes with different periods p. At p = 600 nm, the velocity vg of long wavelength spin-waves is reduced compared to the unpatterned reference film by up to about 30%. However, a large vg is regained when we leave out a column of nanoholes in the ADLs. Such a magnonic crystal wave guide is found to support faster spin waves than a CoFeB stripe of the same geometrical width, making the finding interesting for spin-wave guiding in integrated magnonics.


Related Articles

  • Acoustic band gaps in phononic crystal strip waveguides. Feng-Chia Hsu; Chiung-I Lee; Jin-Chen Hsu; Tsun-Che Huang; Chin-Hung Wang; Pin Chang // Applied Physics Letters;2/1/2010, Vol. 96 Issue 5, p051902 

    We study the elastic wave propagation in phononic-crystal strip waveguides cut from a silicon phononic-crystal plate with square-lattice vacuum holes through analyzing the band structure and transmission spectra. We show the influence of different cutting ways is crucial to the band-gap...

  • Strong photoabsorption by a single-quantum wire in waveguide-transmission spectroscopy. Takahashi, Yasushi; Hayamizu, Yuhei; Itoh, Hirotake; Yoshita, Masahiro; Akiyama, Hidefumi; Pfeiffer, Loren N.; West, Ken W. // Applied Physics Letters;6/13/2005, Vol. 86 Issue 24, p243101 

    We measured the absorption spectrum of a single T-shaped 14×6 nm lateral-sized quantum wire embedded in an optical waveguide using waveguide-transmission spectroscopy at 5 K. In spite of its small volume, the one-dimensional-exciton ground state shows a large absorption coefficient of 80...

  • Ultra-broadband heterogeneous quantum cascade laser emitting from 2.2 to 3.2 THz. Turcˇinková, Dana; Scalari, Giacomo; Castellano, Fabrizio; Amanti, Maria I.; Beck, Mattias; Faist, Jérôme // Applied Physics Letters;11/7/2011, Vol. 99 Issue 19, p191104 

    We present a heterogeneous terahertz quantum cascade laser that emits continuously between 2.2 and 3.2 THz, covering an emission range of over 40% around the central frequency. Devices were realized by stacking different active region designs into a double-metal waveguide. They operate up to 125...

  • Wide-band transmittance of one-dimensional photonic crystals carved in Si3N4/SiO2 channel waveguides. Gerace, D.; Galli, M.; Bajoni, D.; Guizzetti, G.; Andreani, L. C.; Riboli, F.; Melchiorri, M.; Daldosso, N.; Pavesi, L.; Pucker, G.; Cabrini, S.; Businaro, L.; di Fabrizio, E. // Applied Physics Letters;11/21/2005, Vol. 87 Issue 21, p211116 

    Experimental and theoretical investigations of photonic crystal (PhC) structures in silicon nitride/silicon dioxide (Si3N4/SiO2) vertical waveguiding geometry are reported. One-dimensional patterns, either periodic or with cavity layers, are carved onto the channel waveguides by using focused...

  • Relation of slip characteristics and contact stress of strands in CIC conductors. Takao, T.; Yoshino, D.; Takeo, M.; Yamanaka, A. // AIP Conference Proceedings;2002, Vol. 614 Issue 1, p1176 

    Frictional disturbance due to abrupt strand motion is one of main causes of instability of cable-in-conduit (CIC) conductors. The strands in the CIC conductors are pressed against a conduit by electromagnetic force, and frictional slip occurs at contact points between the strands and the...

  • Noise Pumping of Nuclear Spin Waves in an Antiferromagnet. Andrienko, A. V. // Journal of Experimental & Theoretical Physics;Jan2005, Vol. 100 Issue 1, p77 

    Parametric excitation and the above-threshold behavior of a nonequilibrium system of nuclear magnons are investigated both under microwave noise pumping and under monochromatic pumping with noise modulation of the magnon spectrum. It is established that there exist two critical pumping...

  • EO/IR, Part 1--The EO/IR Spectrum. Adamy, Dave // Journal of Electronic Defense;Mar2001, Vol. 24 Issue 3, p68 

    Examines the parts of the electromagnetic spectrum. Use of frequency to define radio-frequency portions of the spectrum; Application of wavelength at higher frequencies; Presentation of details through several references.

  • What Wavelength Are You On?  // Science World (Teacher's Edition);11/29/2002, Vol. 59 Issue 5, p6 

    Presents information on the wavelength and frequencies of the electromagnetic spectrum.

  • A Maxwell's fish eye lens for the terahertz region. Liu, Jingbo; Mendis, Rajind; Mittleman, Daniel M. // Applied Physics Letters;7/15/2013, Vol. 103 Issue 3, p031104 

    We implement a two-dimensional Maxwell's fish eye lens using a waveguide-based artificial dielectric. The Maxwell's fish eye lens consists of two metallic cylindrical plates sandwiching a free-space region, with the inner surface of one plate shaped into a hollow conical form. This lens has the...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics