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Recent Chandra and XMM-Newton observations of galaxy cluster cooling flows have revealed X-ray emission voids of up to 30 kpc in size that have been identified with buoyant, magnetized bubbles. Motivated by these observations, we have…

The reversal of magnetic bubble helicity through topologically trivial transient states provides an additional degree of freedom that promises the development of multidimensional magnetic memories. A key requirement for this concept is the…

Magnetic thin films hosting topological spin textures, such as magnetic skyrmions, hold high potential for breakthroughs in the field of spintronics, due to good scalability and energy efficiency. Novel computational architectures such as…

Materials Science · Physics 2025-02-19 Ahmad Dibajeh , Cameron W. Johnson , Andreas K. Schmid , Roberto Lo Conte

Magnetic multilayers are a promising platform for storage and logic devices based on skyrmion spin textures, due to the large materials phase space for tuning properties. Epitaxial superlattice structures of [Pt/Co/Cu]n thin films were…

Materials Science · Physics 2023-07-19 Jacob J. Repicky , Brad Goff , Shuyu Cheng , Roland K. Kawakami , Jay A. Gupta

We report formation of magnetic textures in the ferromagnetic (FM) phase of La$_{1-x}$Sr$_x$MnO$_3$ for $x =$ 0.125; these textures are magnetic bubbles, magnetic stripe domains, and forced FM states. In situ Lorentz microscopy (LM)…

Strongly Correlated Electrons · Physics 2020-05-05 A. Kotani , H. Nakajima , K. Harada , Y. Ishii , S. Mori

The creation and control of magnetic spin textures is of great interest in fundamental research and future device-oriented applications. Fe/Gd multilayers host a rich variety of magnetic textures including topologically trivial bubbles and…

Mesoscale and Nanoscale Physics · Physics 2025-08-19 Tim Titze , Sabri Koraltan , Mailin Matthies , Timo Schmidt , Dieter Suess , Manfred Albrecht , Stefan Mathias , Daniel Steil

A magnetic bubble crystal is a two-dimensional soliton lattice consisting of multiple spin density waves similar to a magnetic skyrmion crystal. Nevertheless, the emergence of the bubble crystal with a collinear spin texture is rare…

Strongly Correlated Electrons · Physics 2024-04-23 Satoru Hayami , Yasuyuki Kato

Various and spontaneous magnetic skyrmionic bubbles are experimentally observed for the first time, at room temperature in a frustrated kagome magnet Fe3Sn2 with unixial magnetic anisotropy. The magnetization dynamics were investigated…

Soap bubbles form when blowing air through a suspended thin film of soapy water and this phenomenon entertains children and adults alike. The formation of soap bubbles from thin films is accompanied by topological transitions, and thus the…

Magnetic skyrmions are topologically nontrivial spin textures which hold great promise as stable information carriers in spintronic devices at the nanoscale. One of the major challenges for developing novel skyrmion-based memory and logic…

Three-dimensional (3D) topological spin textures emerge as promising quasi-particles for encoding information in future spintronic devices. The third dimension provides more malleability regarding their magnetic properties as well as more…

Mesoscale and Nanoscale Physics · Physics 2022-11-30 Matthieu Grelier , Florian Godel , Aymeric Vecchiola , Sophie Collin , Karim Bouzehouane , Albert Fert , Vincent Cros , Nicolas Reyren

Localized particle-like spin textures have been found to exhibit emergent electromagnetic properties, which hold promise for the development of intriguing spintronic devices. Among these textures, magnetic bubbles represent localized spin…

Magnetic skyrmions are promising for next-generation information storage and processing owing to their potential advantages in data storage density, robustness, and energy efficiency. The magnetic multilayers consisting of Pt, Co, and a…

Recent experiments have shown that magnetic skyrmion bubbles can be generated and injected at room temperature in thin films [W. Jiang et al, Science vol. 349, 283 (2015)]. Here, we demonstrate, using micromagnetic modeling, that such…

Mesoscale and Nanoscale Physics · Physics 2016-03-23 Olle Heinonen , Wanjun Jiang , Hamoud Somaily , Suzanne G. E. te Velthuis , Axel Hoffmann

Some of the peculiar electrodynamical effects associated with gauged ``dimension bubbles'' are presented. Such bubbles, which effectively enclose a region of 5d spacetime, can arise from a 5d theory with a compact extra dimension. Bubbles…

High Energy Physics - Theory · Physics 2009-11-10 E. I. Guendelman , J. R. Morris

The current efforts to fabricate non-volatile magnetic recording media with a high areal density is deteriorated by the increasing temporal instability of the stored information. If the stored energy per magnetic particle competes with the…

Materials Science · Physics 2009-10-31 P. J. Jensen

Magnetic nanoparticles play a crucial role in different fields such as biomedicine or information and quantum technologies. These applications require nanoparticles with a single, well-defined energy minimum, free of metastable states, and…

Mesoscale and Nanoscale Physics · Physics 2024-10-28 D. García-Pons , J. Pérez-Bailón , A. Méndiz , V. Júlvez , M. Hack , K. Wurster , R. Kleiner , D. Koelle , M. J. Martínez-Pérez

Magnetic multilayers are a rich class of materials systems with numerous highly tunable physical parameters that determine both their magnetic and electronic properties. Here we present a comprehensive experimental study of a novel system,…

Materials Science · Physics 2022-06-02 Martin Lonsky , Myoung-Woo Yoo , Yi-Siou Huang , Jiangchao Qian , Jian-Min Zuo , Axel Hoffmann

Most materials freeze when cooled to sufficiently low temperature. We find that magnetic dipoles randomly distributed in a solid matrix condense into a spin liquid with spectral properties on cooling that are the diametric opposite of those…

Condensed Matter · Physics 2009-11-10 S. Ghosh , R. Parthasarathy , T. F. Rosenbaum , G. Aeppli

Magnetic droplets are non-topological magnetodynamical solitons displaying a wide range of complex dynamic phenomena with potential for microwave signal generation. Bubbles, on the other hand, are internally static cylindrical magnetic…

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