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Complex magnetic structures for microwave, logic and memory applications

Title
Complex magnetic structures for microwave, logic and memory applications
Funding
ARC | Discovery Projects
Contract (GA) number
DP110103980
Start Date
2011/01/01
End Date
2014/12/31
Open Access mandate
no
Organizations
-
More information
http://purl.org/au-research/grants/arc/DP110103980

 

  • Programmability of Co-antidot lattices of optimized geometry

    Schneider, Tobias; Langer, Manuel; Alekhina, Julia; Kowalska, Ewa; Oelschl?gel, Antje; Semisalova, Anna; Neudert, Andreas; Lenz, Kilian; Potzger, Kay; Kostylev, Mikhail P.; Fassbender, J?rgen; Adeyeye, Adekunle O.; Lindner, J?rgen; Bali, Rantej (2017)
    Projects: ARC | Complex magnetic structures for microwave, logic and memory applications (DP110103980)
    Programmability of stable magnetization configurations in a magnetic device is a highly desirable feature for a variety of applications, such as in magneto-transport and spin-wave logic. Periodic systems such as antidot lattices may exhibit programmability; however, to achieve multiple stable magnetization configurations the lattice geometry must be optimized. We consider the magnetization states in Co-antidot lattices of ?50?nm thickness and ?150?nm inter-antidot distance. Micromagnetic simu...

    High Cooperativity Cavity QED with Magnons at Microwave Frequencies

    Goryachev, Maxim; Farr, Warrick G.; Creedon, Daniel L.; Fan, Yaohui; Kostylev, Mikhail; Tobar, Michael E. (2014)
    Projects: ARC | Frontiers of Precision Time and Frequency (FL0992016), ARC | Complex magnetic structures for microwave, logic and memory applications (DP110103980)
    Using a sub-millimetre sized YIG (Yttrium Iron Garnet) sphere mounted in a magnetic field-focusing cavity, we demonstrate an ultra-high cooperativity of $10^5$ between magnon and photon modes at millikelvin temperatures and microwave frequencies. The cavity is designed to act as a magnetic dipole by using a novel multiple-post approach, effectively focusing the cavity magnetic field within the YIG crystal with a filling factor of 3%. Coupling strength (normal-mode splitting) of 2 GHz, (equiva...
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