Center for Quantum Spintronics (QuSpin)

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NTNU and SFF logos SFF QuSpin, Center for Quantum Spintronics

Our vision is to trigger a revolution in low-power information and communication technologies in an energy-efficient society.

QuSpin´s objective is to develop the basic science that uses quantum entities such as the electron spin as information carriers in radically different ways. We aim at groundbreaking basic research that is crucial to the  development of fast, high-capacity, material systems and tools for smaller and more power-efficient electronic devices.

Featured Publications

Featured Publications



Topological Superconductivity Mediated by Skyrmionic Magnons

Phys. Rev. Lett. 130, 156002 – Published 13 April 2023. Kristian Mæland and Asle Sudbø

Topological superconductors are associated with the appearance of Majorana bound states, with promising applications in topologically protected quantum computing. In this Letter, we study a system where a skyrmion crystal is interfaced with a normal metal. Through interfacial exchange coupling, spin fluctuations in the skyrmion crystal mediate an effective electron-electron interaction in the normal metal...

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Superconducting Proximity Effect and Long-Ranged Triplets in Dirty Metallic Antiferromagnets

Phys. Rev. Lett. 131, 076001 – Published 14 August 2023 Fyhn, Eirik Holm; Brataas Arne; Qaiumzadeh, Alireza; Linder, Jacob.

Antiferromagnets have no net spin splitting on the scale of the superconducting coherence length. Despite this, antiferromagnets have been observed to suppress superconductivity in a similar way as ferromagnets, a phenomenon that still lacks a clear understanding. We find that this effect can be explained by the role of impurities in antiferromagnets.

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Magnetotransport Study of van der Waals CrPS4/(Pt, Pd) Heterostructures: Spin-Flop Transition and Room-Tempearture Anomalous Hall Effect

Phys. Rev. Applied 17, (064038) Rui Wu, Andrew Ross, Shilei Ding, Yuxuan Peng, Fangge He, Yi Ren, Romain Lebrun, Yong Wu, Zhen Wang, Jinbo Yang, Arne Brataas, and Mathias Kläui.

We study magnetotransport in heterostructures composed of the van der Waals antiferromagnet CrPS4 and the heavy metals Pt and Pd. In both types of devices, the transverse resistance (Rxy) signal reveals the spin-flop transition of CrPS4 and a strong anomalous Hall effect at temperatures up to 300 K...

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What's happening this week.

Journal Club, Monday Oct 2nd, at 2.15 PM in E5-103. Speaker: PhD candidate Bjørnulf Brekke. Title: Zero-Frequency Chiral Magnonic Edge States Protected by Nonequilibrium Topology.

QuSpin Leader Group Meeting, Wednesday Oct 3rd, at 12.30 PM, in E5-103.

Idea Forum, Friday Oct 6th, at 1.15 PM in E5-103.

Spinmaster this week Johanne Tjernshaugen.





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