35 citations · 182 across the 20 of their papers we have counts for
22 papers
Low magnon damping of a EuSe film down to millikelvin temperatures
Rostyslav O. Serha, Jan Hofer, Khrystyna O. Levchenko +4
The rapid development of quantum magnonics over the past decade has created a demand for magnetic materials that keep their magnon losses low at millikelvin temperatures and add fu…
Anisotropic wavevector-dependent damping of thickness-quantized magnons
Tamara Azevedo, Rostyslav O. Serha, Yannik Kunz +7
Magnon damping is a key factor governing spin-wave transport and nonlinear dynamics of multimode magnon systems. However, many descriptions rely on the assumption of an effective m…
Brillouin Light Scattering Spectroscopy of Propagating Magnons at Sub-Kelvin Temperatures
David Schmoll, Nikolai Kuznetsov, Phillip Rehberger +8
Coupling light to magnetic excitations in the form of spin waves underpins both the optical study of magnetism and emerging schemes for quantum transduction, positioning the quanta…
Quantum State Preparation of Ferromagnetic Magnons by Parametric Driving
Monika E. Mycroft, Rostyslav O. Serha, Andrii V. Chumak +1
We propose a method to prepare and certify Gaussian quantum states of the ferromagnetic resonance spin-wave modes in ferromagnets using a longitudinal drive. Contrary to quantum op…
Long-range propagating paramagnon-polaritons in organic free radicals
Sebastian Knauer, Roman Verba, Rostyslav O. Serha +5
Materials are commonly distinguished by their magnetic response into diamagnetic, paramagnetic, and magnetically ordered (ferro-, ferri-, and antiferromagnetic) phases. Diamagnets…
Magnetic Materials for Quantum Magnonics
Rostyslav O. Serha, Carsten Dubs, Andrii V. Chumak
Quantum magnonics studies the quantum properties of magnons, the quanta of spin waves, and their application in quantum information processing. Progress in this field depends on id…
Novel diamagnetic garnet-type substrate single crystals for ultralow-damping yttrium iron garnet Y3Fe5O12 films at cryogenic temperatures
C. Guguschev, C. Dubs, R. Blukis +9
Y3Sc2Ga3O12-Y3Sc2Al3O12 and Y3Sc2Ga3O12-Y3Al5O12 (YSGAG) solid solution single crystals with diameters up to 30 mm and total lengths up to about 100 mm were grown by the convention…
YSGAG: The Ideal Substrate for YIG in Quantum Magnonics
Rostyslav O. Serha, Carsten Dubs, Christo Guguschev +8
Quantum magnonics leverages the quantum properties of magnons to advance nanoscale quantum information technologies. Ferrimagnetic yttrium iron garnet (YIG), known for exceptionall…
Unified theory of magnetization temperature dependence in ferrimagnets
Rostyslav O. Serha, Anna Pomyalov, Andrii V. Chumak +1
Recent advancements in spintronics and fundamental physical research have brought increased attention to the rare-earth-based magnetically ordered materials. One of the important p…
1D YIG hole-based magnonic nanocrystal
K. O. Levchenko, K. Davídková, R. O. Serha +12
Magnetic media with artificial periodic modulation-magnonic crystals (MCs) - enable tunable spin-wave dynamics and band structure engineering. Nanoscaling enhances these capabiliti…
Ultra-long-living magnons in the quantum limit
Rostyslav O. Serha, Kaitlin H. McAllister, Fabian Majcen +8
Solid-state platforms based on bosonic quasiparticles offer a compelling route toward on-chip quantum information technologies scalable to nanometer dimensions. Coherence time, a k…
Elimination of substrate-induced FMR linewidth broadening in the epitaxial system YIG-GGG by microstructuring
David Schmoll, Rostyslav O. Serha, Jaganandha Panda +4
Modern quantum technologies and hybrid quantum systems offer the opportunity to utilize magnons on the level of single excitations. Long lifetimes, low decoherence rates, and a str…
Damping Enhancement in YIG at Millikelvin Temperatures due to GGG Substrate
Rostyslav O. Serha, Andrey A. Voronov, David Schmoll +12
Quantum magnonics aims to exploit the quantum mechanical properties of magnons for nanoscale quantum information technologies. Ferrimagnetic yttrium iron garnet (YIG), which offers…
Wavenumber-dependent magnetic losses in YIG-GGG heterostructures at millikelvin temperatures
David Schmoll, Andrey A. Voronov, Rostslav O. Serha +7
Magnons have inspired potential applications in modern quantum technologies and hybrid quantum systems due to their intrinsic nonlinearity, nanoscale scalability, and a unique set…
Experimental realisation of a universal inverse-design magnonic device
Noura Zenbaa, Claas Abert, Fabian Majcen +7
In the field of magnonics, which uses magnons, the quanta of spin waves, for energy-efficient data processing, significant progress has been made leveraging the capabilities of the…
Magnetic anisotropy and GGG substrate stray field in YIG films down to millikelvin temperatures
Rostyslav O. Serha, Andrey A. Voronov, David Schmoll +17
Quantum magnonics investigates the quantum-mechanical properties of magnons such as quantum coherence or entanglement for solid-state quantum information technologies at the nanosc…
Towards an experimental proof of the magnonic AharonovCasher effect
Rostyslav O. Serha, Vitaliy I. Vasyuchka, Alexander A. Serga +1
Controlling the phase and amplitude of spin waves in magnetic insulators with an electric field opens the way to fast logic circuits with ultra-low power consumption. One way to ac…
Propagating spin-wave spectroscopy in nanometer-thick YIG films at millikelvin temperatures
Sebastian Knauer, Kristýna Davídková, David Schmoll +10
Performing propagating spin-wave spectroscopy of thin films at millikelvin temperatures is the next step towards the realisation of large-scale integrated magnonic circuits for qua…
Stimulated amplification of propagating spin waves
David Breitbach, Michael Schneider, Björn Heinz +13
Spin-wave amplification techniques are key to the realization of magnon-based computing concepts. We introduce a novel mechanism to amplify spin waves in magnonic nanostructures. U…
Stabilization of a nonlinear bullet coexisting with a Bose-Einstein condensate in a rapidly cooled magnonic system driven by a spin-orbit torque
Michael Schneider, David Breitbach, Rostyslav O. Serha +14
We have recently shown that injection of magnons into a magnetic dielectric via the spin-orbit torque (SOT) effect in the adjacent layer of a heavy metal subjected to the action of…
Control of the Bose-Einstein Condensation of Magnons by the Spin-Hall Effect
Michael Schneider, David Breitbach, Rostyslav O. Serha +13
Previously, it has been shown that rapid cooling of yttrium-iron-garnet (YIG)/platinum (Pt) nano structures, preheated by an electric current sent through the Pt layer, leads to ov…
Low-damping transmission of spin waves through YIG/Pt-based layered structures for spin-orbit-torque applications
Dmytro A. Bozhko, Alexander A. Serga, Milan Agrawal +2
We show that in YIG-Pt bi-layers, which are widely used in experiments on the spin transfer torque and spin Hall effects, the spin-wave amplitude significantly decreases in compari…