Results 121 to 130 of about 8,313 (238)

Antiferromagnetic Skyrmions and Bimerons

open access: yes, 2021
The topological spin textures, such as magnetic skyrmions and bimerons, are currently a hot topic in condensed matter physics. Magnetic skyrmions are swirling spin textures, which can be stabilized in chiral magnets with perpendicular magnetic anisotropy,
Oleg A. Tretiakov   +13 more
core   +1 more source

Colossal Magnetic‐Field‐Induced Anomalous Hall Conductivity in a Kagome Antiferromagnet YMn6Sn6

open access: yesAdvanced Science, EarlyView.
Magnetic‐field‐driven spin canting in the kagome antiferromagnet YMn6Sn6${\rm YMn}_6{\rm Sn}_6$ reshapes flat and Dirac bands near the Fermi level, redistributing Berry curvature and producing colossal anomalous Hall conductivity. The study reveals how magnetic configuration and clean‐limit skew scattering cooperate to amplify Hall transport, offering ...
Minhyuk Choi   +9 more
wiley   +1 more source

Combinatorial Survey of Structural Phase Distribution and Magnetism in Fe‐Ge‐Te Composition‐Spread Thin Film Libraries

open access: yesAdvanced Electronic Materials, EarlyView.
ABSTRACT Magnetic 2‐dimensional (2D) van der Waals (vdW) materials have garnered tremendous attention. The vdW ferromagnet Fe5Ge1Te2 has a Curie temperature Tc of ≈ 270 K, which is tailorable by tuning the stoichiometry and the Fe deficiency to reach room temperature.
Chih‐Yu Lee   +7 more
wiley   +1 more source

Multi-skyrmion solutions of a sixth order skyrme model [PDF]

open access: yes, 2001
In this Thesis, we study some of the classical properties of an extension of the Skyrme model defined by adding a sixth order derivative term to the Lagrangian.
Floratos, Ioannis, Floratos, I.
core  

Stable Magnetic Nanodomains Engineered Via Ga+‐ion Irradiation For Deterministic Sequential Switching

open access: yesAdvanced Electronic Materials, EarlyView.
Tiny magnetic regions separated by domain walls can store data, but controlling them precisely is difficult. We use focused ion beams to create nanoscale “anisotropy wells” that pin these walls from both sides. This bidirectional pinning holds domains stable in either direction, even with no field applied.
Gijs W.A. Simons   +2 more
wiley   +1 more source

Nanomagnetic skyrmions [PDF]

open access: yes, 2012
Magnetic skyrmions and other topologically protected nanostructures are investigated. Since skyrmions are mathematical rather than physical objects, they describe a wide variety of physical systems, from simple magnetic domain walls to complicated ...
Li, Zhen   +17 more
core   +1 more source

Exploiting Ferroelectric and Spintronic Dynamics for Neural Network Computation

open access: yesAdvanced Intelligent Systems, EarlyView.
Ferroelectric and spintronic devices, relying on the control of polarization and magnetization, offer intrinsically fast, durable, energy‐efficient, and low‐latency building blocks for analog in‐memory computing. The hysteretic dynamics of an order parameter are leveraged to provide nonvolatile, multistate memory and nonlinear switching. Brain‐inspired
Dashiell Harrison   +4 more
wiley   +1 more source

Electrical detection of single magnetic skyrmions in metallic multilayers at room temperature

open access: yes, 2018
International audienceS o far, the electrical detection of skyrmions in the lattice phase has been achieved only at low temperatures, mainly in magnetic materials with B20 crystal structures 1-7.
Albert Fert   +15 more
core   +1 more source

Electrical detection of mobile skyrmions with 100% tunneling magnetoresistance in a racetrack-like device

open access: yesnpj Quantum Materials
Magnetic skyrmions are topological spin textures that are regarded as promising information carriers for next-generation spintronic memory and computing devices.
Mengqi Zhao   +19 more
doaj   +1 more source

Artificial Intelligence for Advanced Functional Materials: Progress and Emerging Frontiers

open access: yesAdvanced Intelligent Systems, EarlyView.
Artificial intelligence is transforming the discovery of functional materials by linking synthesis, characterization, simulation, and design in unified workflows. Advances in machine learning, autonomous experimentation, and foundation models are accelerating innovation across energy, electronics, and biomedicine, while revealing new frontiers for ...
Cristiano Malica   +38 more
wiley   +1 more source

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