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We report the existence of entangled steady-states in bipartite quantum magnonic systems at elevated temperatures. We consider dissipative dynamics of two magnon modes in a bipartite antiferromagnet, subjected to interaction with a phonon…

Using a combination of first-principles and magnetization-dynamics calculations, we study the effect of the intense optical excitation of phonons on the magnetic behavior in insulating magnetic materials. Taking the prototypical…

Strongly Correlated Electrons · Physics 2018-06-13 M. Fechner , A. Sukhov , L. Chotorlishvili , C. Kenel , J. Berakdar , N. A. Spaldin

The interaction between magnetic and acoustic excitations have recently inspired many interdisciplinary studies ranging from fundamental physics to circuit implementation. Specifically, the exploration of their coherent interconversion…

Mesoscale and Nanoscale Physics · Physics 2024-06-12 Yi Li , Chenbo Zhao , Wei Zhang , Axel Hoffmann , Valentyn Novosad

Rigidity of an ordered phase in condensed matter results in collective excitation modes spatially extending in macroscopic dimensions. Magnon is a quantum of an elementary excitation in the ordered spin system, such as ferromagnet. Being…

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 nonlinear spin-wave interactions suppress the coupling…

Mesoscale and Nanoscale Physics · Physics 2026-01-30 Dinesh Wagle , Anish Rai , M. Benjamin Jungfleisch

We investigate the magnetization dynamics of $TmFeO_3$ single crystals across the spin-reorientation phase transition using broadband microwave absorption spectroscopy up to 87.5 GHz. Temperature- and magnetic-field-dependent…

Cavity magnomechanics has become an ideal platform to explore macroscopic quantum effects. Bringing together magnons, phonons, and photons in a system, it opens many opportunities for quantum technologies. It was conventionally realized by…

Quantum Physics · Physics 2024-02-20 Chun-Jie Yang , Qingjun Tong , Jun-Hong An

We demonstrate large normal-mode splitting between a magnetostatic mode (the Kittel mode) in a ferromagnetic sphere of yttrium iron garnet and a microwave cavity mode. Strong coupling is achieved in the quantum regime where the average…

We investigate the absorption and transmission properties of a weak probe field under the influence of a strong control field in a hybrid cavity magnomechanical system in the microwave regime. This hybrid system consists of two…

Quantum Physics · Physics 2020-09-30 Kamran Ullah , M. Tahir Naseem , Özgür E. Müstecaplıoglu

We investigate the magnon-photon couplings by employing a small magnet within an irregular resonant cavity, which leads to a desirable nonreciprocity with a big isolation ratio. Moreover, the higher-order couplings between the spin wave…

Applied Physics · Physics 2021-06-02 Chi Zhang , Chenglong Jia , Yongzhang Shi , Changjun Jiang , Desheng Xue , C. K. Ong , Guozhi Chai

Driving an open spin system by two strong, nearly degenerate fields enables addressing populations of individual spin states, characterisation of their interaction with thermal bath, and measurements of their relaxation/decoherence rates.…

Quantum Physics · Physics 2020-09-25 Wojciech Gawlik , Piotr Olczykowski , Mariusz Mrózek , Adam M. Wojciechowski

The recently developed hybrid magnonics provides new opportunities for advances in both the study of magnetism and the development of quantum information processing. However, engineering coherent quantum state transfer between magnons and…

Quantum Physics · Physics 2023-07-25 Yan Wang , Hui-Lai Zhang , Jin-Lei Wu , Jie Song , Kun Yang , Wei Qin , Hui Jing , Le-Man Kuang

Weexperimentally realize the continuously controllable dissipative coupling and coherent coupling induced by different magnon modes and the same anti-resonance. It has been observed that the weaker the microwave magnetic field distribution…

Mesoscale and Nanoscale Physics · Physics 2025-08-13 Zhenhui Hao , Yuping Yao , Kang An , Xiling Li , Chi Zhang , Guozhi Chai

Direct detection of phonons is important for the investigation of information interconversion between the resonantly coupled magnons and phonons. Here we report resonant coupling of magnons and phonons, which can be directly visualized by…

We present a theoretical study of synchronization between two strongly driven magnon modes indirectly coupled via a single-mode microwave cavity. Each magnon mode, hosted in separate Yttrium Iron Garnet spheres, interacts coherently with…

Quantum Physics · Physics 2026-03-03 Jatin Ghildiyal , Shubhrangshu Dasgupta , Asoka Biswas

Magnetophononics, the modulation of magnetic interactions by driven infrared-active lattice excitations, is emerging as a key mechanism for the ultrafast dynamical control of both semiclassical and quantum spin systems by coherent light. We…

Strongly Correlated Electrons · Physics 2023-05-17 M. Yarmohammadi , M. Krebs , G. S. Uhrig , B. Normand

Magnetic order typically emerges due to the short-range exchange interaction between the constituent electronic spins. Recent discoveries have found a crucial role for spin-phonon coupling in various phenomena from optical ultrafast…

Mesoscale and Nanoscale Physics · Physics 2024-05-16 Petros Andreas Pantazopoulos , Johannes Feist , Francisco J. García-Vidal , Akashdeep Kamra

The interaction between light and matter in condensed matter excitations and electromagnetic resonators serves as a rich playground for fundamental research and lies at the core of photonic and quantum technologies. Herein, we present…

We calculate the effects of the spin-lattice coupling on the magnon spectrum of thin ferromagnetic films consisting of the magnetic insulator yttrium-iron garnet. The magnon-phonon hybridisation generates a characteristic minimum in the…

Strongly Correlated Electrons · Physics 2014-05-22 Andreas Rückriegel , Peter Kopietz , Dmytro A. Bozhko , Oleksandr A. Serga , Burkard Hillebrands

Strong coupling between distinct quasiparticles in condensed matter systems gives rise to hybrid states with emergent properties. We demonstrate the hybridization of confined phonons and finite-wavelength magnons, forming a magnon-polaron…