16 papers
Perpendicular magnetic anisotropy tuning of macrospin-to-vortex transitions in Co-based artificial spin-vortex ice
Yu Maruyama, Amrit Kumar Mondal, Bijaya Kharel +4
We investigate the macrospin-to-vortex (MS-to-V) transition in Co-based artificial spin-vortex ice (ASVI) in the presence of perpendicular magnetic anisotropy (PMA) by spin-wave sp…
Shaping non-reciprocal caustic spin-wave beams
Dinesh Wagle, Daniel Stoeffler, Loic Temdie +8
A caustic is a mathematical concept describing the beam formation when the beam envelope is reflected or refracted by a manifold. While caustics are common in a wide range of physi…
Deeply nonlinear magnon-photon hybrid excitation
Dinesh Wagle, Anish Rai, M. Benjamin Jungfleisch
We investigate the microwave-power dependence of magnon-photon coupling in a yttrium iron garnet-sphere/split-ring-resonator hybrid system at room temperature and demonstrate that…
Broken intrinsic symmetry induced magnon-magnon coupling in synthetic ferrimagnets
Mohammad Tomal Hossain, Hang Chen, Subhash Bhatt +5
Synthetic antiferromagnets offer rich magnon energy spectra in which optical and acoustic magnon branches can hybridize. Here, we demonstrate a broken intrinsic symmetry induced co…
Magnon-Magnon Interaction Induced by Dynamic Coupling in a Hybrid Magnonic Crystal
Rawnak Sultana, Mojtaba Taghipour Kaffash, Gianluca Gubbiotti +3
We report a combined experimental and numerical investigation of spin-wave dynamics in a hybrid magnonic crystal consisting of a CoFeB artificial spin ice (ASI) of stadium-shaped n…
Quantum geometric origins of the orbital degrees of freedom of hybrid bosonic quasiparticles in magnetic systems
D. Quang To, Dai Q. Ho, Joshua M. O. Zide +5
The orbital degree of freedom has recently attracted significant attention due to the novel phenomena it enables in condensed matter systems. However, the interpretation of the orb…