Magnon polaron formed by selectively coupled coherent magnon and phonon modes of a surface patterned ferromagnet

Godejohann, Felix; Scherbakov, A. V.; Kukhtaruk, S. M.; Poddubny, Alexander N.; Yaremkevich, Dmytro D.; Wang, M.; Nadzeyka, Achim; Yakovlev, D. R.; Rushforth, A. W.; Акимов, А. В.; Bayer, М.

doi:10.1103/physrevb.102.144438

Cited by 76 publications

(58 citation statements)

References 55 publications

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“…By adopting other easy-to-fabricate magnetic materials, magnetomechanical strong coupling has been reported in nanoscale devices. 65,67 Moreover, it is proposed that in magnetic nanoparticles, the coupling of magnons with the rotational degree of freedom of the particle can significantly affect the magnon properties, leading to novel opportunities for coherent signal processing. 68 Developing novel fabrication techniques will dramatically facilitate novel device designs and break many existing experimental restrictions.…”

Section: B Magnetomechanics and Magnon-phonon Coupled Devicesmentioning

confidence: 99%

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

Awschalom

et al. 2021

IEEE Trans. Quantum Eng.

114

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Quantum technology has made tremendous strides over the past two decades with remarkable advances in materials engineering, circuit design and dynamic operation. In particular, the integration of different quantum modules has benefited from hybrid quantum systems, which provide an important pathway for harnessing the different natural advantages of complementary quantum systems and for engineering new functionalities. This review focuses on the current frontiers with respect to utilizing magnetic excitatons or magnons for novel quantum functionality. Magnons are the fundamental excitations of magnetically ordered solid-state materials and provide great tunability and flexibility for interacting with various quantum modules for integration in diverse quantum systems. The concomitant rich variety of physics and material selections enable exploration of novel quantum phenomena in materials science and engineering. In addition, the relative ease of generating strong coupling and forming hybrid dynamic systems with other excitations makes hybrid magnonics a unique platform for quantum engineering. We start our discussion with circuit-based hybrid magnonic systems, which are coupled with microwave photons and acoustic phonons. Subsequently, we are focusing on the recent progress of magnon-magnon coupling within confined magnetic systems. Next we highlight new opportunities for understanding the interactions between magnons and nitrogen-vacancy centers for quantum sensing and implementing quantum interconnects. Lastly, we focus on the spin excitations and magnon spectra of novel quantum materials investigated with advanced optical characterization.

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Section: B Magnetomechanics and Magnon-phonon Coupled Devicesmentioning

confidence: 99%

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

Awschalom

et al. 2021

IEEE Trans. Quantum Eng.

114

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“…Finally, the effects could be enhanced by using ferromagnetic materials with larger spin-phonon coupling and magnetoelastic effects, e.g. FeGa 24 . ST-FMR measurement.…”

Section: Discussionmentioning

confidence: 99%

“…In QM-SRs a dc current can adjust a synaptic “weight.” Finally, the effects could be enhanced by using ferromagnetic materials with larger spin-phonon coupling and magnetoelastic effects, e.g. FeGa 24 .…”

Section: Discussionmentioning

confidence: 99%

A quantum material spintronic resonator

Chen

Vargas

et al. 2021

Sci Rep

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In a spintronic resonator a radio-frequency signal excites spin dynamics that can be detected by the spin-diode effect. Such resonators are generally based on ferromagnetic metals and their responses to spin torques. New and richer functionalities can potentially be achieved with quantum materials, specifically with transition metal oxides that have phase transitions that can endow a spintronic resonator with hysteresis and memory. Here we present the spin torque ferromagnetic resonance characteristics of a hybrid metal-insulator-transition oxide/ ferromagnetic metal nanoconstriction. Our samples incorporate $${\mathrm {V}}_2{\mathrm {O}}_3$$ V 2 O 3 , with Ni, Permalloy ($${\hbox {Ni}}_{80}{\hbox {Fe}}_{20}$$ Ni 80 Fe 20 ) and Pt layers patterned into a nanoconstriction geometry. The first order phase transition in $${\mathrm {V}}_2{\mathrm {O}}_3$$ V 2 O 3 is shown to lead to systematic changes in the resonance response and hysteretic current control of the ferromagnetic resonance frequency. Further, the output signal can be systematically varied by locally changing the state of the $${\mathrm {V}}_2{\mathrm {O}}_3$$ V 2 O 3 with a dc current. These results demonstrate new spintronic resonator functionalities of interest for neuromorphic computing.

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“…These include colloidal nanocrystals, [138] plasmonic, [139,140] or magnonic structures. [141][142][143]…”

Section: Picosecond Acousticsmentioning

confidence: 99%

Remote Phonon Control of Quantum Dots and Other Artificial Atoms

2021

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To exploit the full potential of chips for quantum technologies, it is worth considering all possible opportunities offered by the solid state. The aspect covered in this article is the use of phononic fields to remotely influence the optical properties of artificial atoms. The three most commonly used strain sources are discussed, that is, mechanical resonators, surface acoustic waves, and picosecond acoustic pulses. All three platforms are routinely interfaced with quantum dots and other qubits in basic research, which renders a first step toward large scale implementation in quantum applications. A central question regarding the interaction between lattice oscillations and the optically active artificial atoms deals with the characteristic time scales of the two components. The influence of this aspect on the expected optical response on the phononic driving is discussed. Besides well known semiconducting quantum dots and color centers that typically operate in the visible spectral range, the more recently discovered artificial atoms in layered van der Waals materials are discussed. Due to their flexibility and robustness, these crystals promise vast opportunities for future applications. Another important building block lies in superconducting qubits that allow to resonantly generate quantum phonon states and therefore establish the field of quantum acoustics.

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Magnon polaron formed by selectively coupled coherent magnon and phonon modes of a surface patterned ferromagnet

Cited by 76 publications

References 55 publications

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

Quantum Engineering With Hybrid Magnonic Systems and Materials (Invited Paper)

A quantum material spintronic resonator

Remote Phonon Control of Quantum Dots and Other Artificial Atoms

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