Observation of room-temperature magnetic skyrmions and their current-driven dynamics in ultrathin metallic ferromagnets.

By S. Woo, K. Litzius, Benjamin Krueger, M. Im, Lucas Caretta, K. Richter, M. Mann, A. Krone, R. Reeve, M. Weigand and 6 more. Nature Materials, 2015

1,526 citations recorded by the source corpus.

Magnetic skyrmions are topologically protected spin textures that exhibit fascinating physical behaviours and large potential in highly energy-efficient spintronic device applications. The main obstacles so far are that skyrmions have been observed in only a few exotic materials and at low temperatures, and fast current-driven motion of individual skyrmions has not yet been achieved. Here, we report the observation of stable magnetic skyrmions at room temperature in ultrathin transition metal ferromagnets with magnetic transmission soft X-ray microscopy. We demonstrate the ability to generate stable skyrmion lattices and drive trains of individual skyrmions by short current pulses along a magnetic racetrack at speeds exceeding 100 m s(-1) as required for applications. Our findings provide experimental evidence of recent predictions and open the door to room-temperature skyrmion spintronics in robust thin-film heterostructures.

Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics, Materials Chemistry

View Paper: https://www.semanticscholar.org/paper/edf27fc229c02b5981080257884a0e011b69e6e1

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

1. B. V. van Wees
2. Weisheng Zhao
3. Xichao Zhang
4. A. Brataas
5. M. Ezawa
6. Yan Zhou
7. Axel Hoffmann

In Condensed Matter Physics

1. B. V. van Wees
2. Weisheng Zhao
3. Xichao Zhang
4. A. Brataas
5. M. Ezawa
6. Yan Zhou

In Materials Chemistry

1. M. Ezawa
2. O. Yazyev

Citations in the corpus

• Skyrmion-electronics: writing, deleting, reading and processing magnetic skyrmions toward spintronic applications (2019, methodology): “A lot of state-of-art microscopy magnetic imaging techniques have been used to observe the real-space profiles of skyrmions in laboratories for the purpose of studying their static and dynamic properties (see Table 2) [29, 33, 35, 36, 102, 106, 109, 111, 116, 120, 121, 125, 148, 160, 174, 195, 197, ”