Magnetoelastic conversion in integrated YIG nanostructures
Delft University of Technology（代尔夫特理工大学）；Institute of Magnetism of NAS and MOS of Ukraine（乌克兰国家科学院和教育部磁性研究所）；RWTH Aachen University（亚琛工业大学）；Max Planck Institute for the Science of Light（马克斯·普朗克光科学研究所）；Luxembourg Institute of Science & Technology (LIST)（卢森堡科学与技术研究所）；Université Grenoble Alpes（格勒诺布尔阿尔卑斯大学）；CEA（法国原子能和替代能源委员会）；CNRS（法国国家科学研究中心）；Grenoble INP（格勒诺布尔理工学院）；Spintec（自旋电子学与技术中心）；WPI-AIMR, Tohoku University（东北大学世界顶尖科学研究学院）；University of the Chinese Academy of Sciences（中国科学院大学）
Artem V. Bondarenko, Fabian Engelhardt, Marios Kounalakis, Thierry Valet, Olivier Klein, Gerrit E. W. Bauer, Silvia Viola Kusminskiy, Yaroslav M. Blanter
Motivated by the recent proposal of two-step transduction from microwave to optical domain using magnetic and elastic intermediate stages arXiv:2205.05088, we consider the coupling between resonant magnetic and elastic modes within a simple axially-symmetric nanodevice designed to host high-quality-factor acoustic modes: A suspended YIG ring structure supported by a central stem, fabricated from a continuous single-crystal film. We study the modes of the system with our custom finite element solvers. We identify the lowest order ``breathing'' mode of a magnetic vortex and the lowest order elastic breathing mode as having the largest mode overlap. For this pair of modes, the external out-of-plane magnetic bias field is critical for bringing them into resonance; however, we show that at the same time it also affects the strength of the coupling. To counteract this, we optimize the radius of the ring at fixed thickness. For the 100 nm-thick film the resonant coupling is maximized at $g/2π= 8\text{MHz}$ at $R\approx1.7μ\text{m}$, indicating that the overlap integral approaches the idealized limit assumed in previous order-of-magnitude estimates. Our results pave the way for the design of tunable frequency-conversion devices based on magnetoelastics.
Magnetoelastic coupling in stripe-domain states of yttrium iron garnet
University College London（伦敦大学学院）；Imperial College London（帝国理工学院）；Japan Atomic Energy Agency（日本原子能机构）；The University of Tokyo（东京大学）；RIKEN Center for Emergent Matter Science (CEMS)（理化学研究所新兴物质科学中心）；WPI-Advanced Institute for Materials Research, Tohoku University（东北大学材料研究高等研究院）
Magnetoelastic Waves in Ferromagnetic Thin Films Mediated by Dipolar Interactions
Institute of Science Tokyo（东京科学大学）；The University of Tokyo（东京大学）；NTT, Inc.（日本电报电话公司）；Japan Atomic Energy Agency（日本原子能研究开发机构）；RIKEN（理化学研究所）；Hiroshima University（广岛大学）
Multiple three-magnon splittings in bismuth yttrium iron garnet nanostructures
Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Saclay（巴黎萨克雷大学纳米科学和纳米技术研究中心）；Laboratoire Albert Fert, CNRS, Thales, Université Paris-Saclay（巴黎萨克雷大学阿尔伯特·费尔特实验室）；LabSTICC, CNRS,Université de Bretagne Occidentale（布雷斯特西布列塔尼大学LabSTICC实验室）
