Results 41 to 50 of about 461 (155)

Resonant Domain Wall Dynamics in a Three‐Dimensional Magnetic Nano Double Helix

open access: yesAdvanced Materials, EarlyView.
3D magnetic nanostructures promise exciting possibilities for magnetization dynamics. However, experimental realizations remain scarce. In nanoprinted cobalt double helices, time‐resolved X‐ray microscopy reveals harmonic domain wall dynamics. Simulations identify the mode and additional higher‐frequency resonances, revealing a rich dynamic landscape ...
Pamela Morales‐Fernández   +15 more
wiley   +1 more source

Toward Wireless Implantable Robotic Systems Driven by Magnetic Field for Personalized Therapy

open access: yesAdvanced Robotics Research, EarlyView.
Robotic materials are playing an increasingly vital role in enabling sensing and actuation at small scales. This perspective highlights recent advances in magnetic materials and magnetically actuated devices for wireless sensing, actuation, and energy harvesting toward implantable robotic systems for closed‐loop therapy.
Yusheng Wang, Ruijian Ge, Xiaoguang Dong
wiley   +1 more source

Tailoring magnetic domains in Gd-Fe thin films

open access: yesAIP Advances, 2018
This paper presents the global modification of magnetic domains and magnetic properties in amorphous Gd19Fe81 thin films with rapid thermal processing at two distinct temperatures (250oC and 450oC), and with different time intervals viz., 2, 5, 10 and 20
A. Talapatra   +2 more
doaj   +1 more source

Structural Disorder and Collective Behavior of Two-Dimensional Magnetic Nanostructures

open access: yesNanomaterials, 2021
Structural disorder has been shown to be responsible for profound changes of the interaction-energy landscapes and collective dynamics of two-dimensional (2D) magnetic nanostructures. Weakly-disordered 2D ensembles have a few particularly stable magnetic
David Gallina, G. M. Pastor
doaj   +1 more source

Spin Hall Nano‐Antenna

open access: yesAdvanced Science, EarlyView.
ABSTRACT The spin Hall effect is a well‐known phenomenon in spintronics that has found numerous applications in digital electronics (memory and logic), but relatively few in analog electronics. Practically the only analog application in widespread use is the spin Hall nano‐oscillator (SHNO) that delivers a high frequency alternating current or voltage ...
Raisa Fabiha   +6 more
wiley   +1 more source

Ultra-giant magnetoresistance in graphene-based spin valves with gate-controlled potential barriers

open access: yesNew Journal of Physics, 2019
Pursuing larger tunnel magnetoresistance is a significant work to develop attractive spin-valve devices for high-performance read heads of hard disk drives, magnetic random access memories, and transistors.
Peng Tseng, Wen-Jeng Hsueh
doaj   +1 more source

A targeted antiferromagnetic nanoprobe for ultra‐sensitive magnetic resonance imaging detection of sub‐millimeter esophageal tumors

open access: yesBMEMat, EarlyView.
We developed a cyclo‐RGD peptide‐conjugated antiferromagnetic nanoparticle (RANP) as a targeted T1 contrast agent. Under 9 T MRI conditions, RANP exhibited an r1 value of 1.88 mM−1 s−1 and a low r2/r1 ratio of 1.84, enabling the detection of esophageal tumors as small as 0.8 mm in vivo. Abstract Early, non‐invasive detection of esophageal cancer at sub‐
Wenkui Mo   +15 more
wiley   +1 more source

Rare Earth-Doped BiFeO3 Thin Films: Relationship between Structural and Magnetic Properties

open access: yesAdvances in Condensed Matter Physics, 2015
Rare Earth- (RE-) doped BiFeO3 (BFO) thin films were grown on LaAlO3 substrates by using pulsed laser deposition technique. All of BFO films doped with 10% of RE show a single phase of rhombohedral structure. The saturated magnetization in the Ho- and Sm-
Ngo Thu Huong   +4 more
doaj   +1 more source

Transverse Square Toroidal Vortices with Giant Ferrotoroidic Coupling in Dy‐Bridged Single‐Molecule Toroics

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 9, 20 March 2026.
Single‐molecular toroics (SMTs) offer protected magnetic states for next‐generation quantum technologies. Ab initio and model analyses of Cu2Dy7 and Cu4Dy12 reveal unconventional excited states featuring delocalised toroidal moments that couple into strong ferro‐ and antiferrotoroidic configurations, providing unprecedented magnetic coupling within ...
Matteo Licitra   +8 more
wiley   +1 more source

Fractional Skyrmion Tubes in Chiral‐Interfaced 3D Magnetic Nanowires

open access: yesAdvanced Functional Materials, Volume 36, Issue 20, 9 March 2026.
In chiral 3D helical magnetic nanowires, the coupling between the geometric and magnetic chirality provides a way to create topological spin states like vortex tubes. Here, it is demonstrated how the breaking of this coupling in interfaced 3D nanowires of opposite chirality leads to even more complex topological spin states, such as fractional ...
John Fullerton   +11 more
wiley   +1 more source

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