3 papers
cond-mat.mes-hall2019
Direct Observation of Magnon Modes in Kagome Artificial Spin Ice with Topological Defects
V. S. Bhat, S. Watanabe, K. Baumgaertl +1
We investigate spin dynamics of artificial spin ice (ASI) where topological defects confine magnon modes in NiFe nanomagnets arranged on an interconnected kagome latt…
physics.app-ph2018
Optimization of Multi-Frequency Magnonic Waveguides with Enhanced Group Velocities by Exchange Coupled Ferrimagnet/Ferromagnet Bilayers
Kyongmo An, Vinayak Bhat, Michal Mruczkiewicz +2
We report broadband spectroscopy and numerical analysis by which we explore propagating spin waves in a magnetic bilayer consisting of a 23 nm thick permalloy film deposited on 130…
cond-mat.mes-hall2018
Angular Dependent Magnetization Dynamics with Mirror-symmetric Excitations in Artificial Quasicrystalline Nanomagnet Lattices
V. S. Bhat, D. Grundler
We report angle-dependent spin-wave spectroscopy on aperiodic quasicrystalline magnetic lattices, i.e., Ammann, Penrose P2 and P3 lattices made of large arrays of interconnected Ni…