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Nanotechnology

Nanomagnetics

News and Updates

Projects and Programs

A current (white arrow) flowing through a tantalum film generates a current of spins (dark blue arrows) that impinges on the ferromagnetic cobalt iron boron layer and causes the magnetization (gold arrow) to charge directions (light blue arrow).

Theory of Spin-Orbit Torque

Ongoing
The working of countless electronic devices involves electric and magnetic effects interacting within nanostructured materials. In the phenomenon known as spin
Fig. 1. Die containing 285 superparamagnetic tunnel junctions.

Spintronics for Neuromorphic Computing

Ongoing
One of the most promising new approaches to next generation information processing is spintronics, where information is carried with electronic spin rather than
(a) Schematic of a near-field scanning microwave microscope (NSMM). (b) NSMM images of a perovskite PV sample, (c) NSMM MoS2 back-gate device, (d) Spatial imaging of excited spin wave modes.

Nanoelectromagnetics

Ongoing
The core activities in this program are the development and application of metrology for quantitative characterization of hetero-structured materials and

Magnetic Imaging

Completed
Our goal is to develop a real-time magnetic domain imaging system and apply it to technologically important systems, including data-storage and permanent

Publications

Synthesis of Mixed-Valent Lanthanide Sulfide Nanoparticles

Author(s)
Pricilla Glaser, Orlando Stewart, Rida Atif, Dane Asuigui, Joel Swanson, Adam Biacchi, Angela R. Hight Walker, Gregory Morrison, Hans-Conrad zur Loye, Sarah Stoll
In targeting reduced valence lanthanides, we report the first nanoparticle synthesis of the mixed-valent ferromagnets Eu3S4 and EuSm2S4. Using divalent

Phase-resolved electrical detection of coherently coupled magnonic devices

Author(s)
Yi Li, Chenbo Zhao, Vivek P. Amin, Zhizhi Zhang, Michael Vogel, Yuzan Xiong, Joseph Sklenar, Ralu Divan, John Pearson, Wei Zhang, Mark D. Stiles, Axel Hoffmann, Valentine Novosad
We demonstrate the electrical detection of a strongly coupled magnon-magnon hybrid system based on yttrium iron garnet/permalloy (YIG/Py) bilayer devices

Roadmap of spin-orbit torques

Author(s)
Qiming Shao, Li Peng, Luqiao Liu, Hyunsoo Yang, Shunsuke Fukami, Armin Razavi, Hao Wu, Kang L. Wang, Frank Freimuth, Yuriy Mokrousov, Mark D. Stiles, Satoru Emori, Axel Hoffmann, Johan Akerman, Kaushik Roy, Jian-Ping Wang, See-Hun Yang, Kevin Garello, Wei Zhang
Spin-orbit torque (SOT) is an emerging technology that enables the efficient manipulation of spintronic devices. The initial processes of interest in SOTs