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The challenging task of scaling-down the size of the power saving electronic devices can be accomplished by exploiting the spin degree of freedom of the conduction electrons in van der Waals (vdW) spintronic architectures built with 2D…

The control of spin current is pivotal for spintronic applications, especially for spin-orbit torque devices. Spin Hall effect (SHE) is a prevalent method to generate spin current. However, it is difficult to manipulate its spin…

Computational Physics · Physics 2021-11-30 Jiaqi Zhou , Jean-Christophe Charlier

The discovery of van der Waals (vdW) magnets opened up a new paradigm for condensed matter physics and spintronic technologies. However, the operations of active spintronic devices with vdW magnets are so far limited to cryogenic…

Mesoscale and Nanoscale Physics · Physics 2021-07-02 Bing Zhao , Roselle Ngaloy , Anamul Md. Hoque , Bogdan Karpiak , Dmitrii Khokhriakov , Saroj P. Dash

Emerging wide varieties of the two-dimensional (2D) van der Waals (vdW) magnets with atomically thin and smooth interfaces holds great promise for next-generation spintronic devices. However, due to the lower Curie temperature of the vdW 2D…

The magnetic properties of the quasi-two-dimensional van der Waals magnet Fe$_{5-\delta}$GeTe$_2$ (F5GT), which has a high ferromagnetic ordering temperature $T_{\text{C}}$ $\sim$ 315 K, remains to be better understood. It has been…

Strongly Correlated Electrons · Physics 2023-04-26 Xiang Chen , Wei Tian , Yu He , Hongrui Zhang , Tyler L. Werner , Saul Lapidus , Jacob P. C. Ruff , Ramamoorthy Ramesh , Robert J. Birgeneau

Low crystal symmetry of magnetic van der Waals materials naturally promotes spin-orbital complexity unachievable in common magnetic materials used for spin-orbit torque switching. Here, using first-principles methods, we demonstrate that an…

Materials Science · Physics 2022-11-09 Tom G. Saunderson , Dongwook Go , Stefan Blügel , Mathias Kläui , Yuriy Mokrousov

Two-dimensional (2D) van der Waals (vdW) magnets and devices have garnered significant attention owing to the stabilization of long range magnetic order down to atomic limit, and the prospect for novel quantum devices with unique…

Magnetometry and magnetoresistance (MR) data taken on the van der Waals ferromagnet Fe$_{3-x}$GeTe$_2$ (FGT) reveal three distinct contributions to the MR: a linear negative component, a contribution from closed Fermi-surface orbits, and a…

Strongly Correlated Electrons · Physics 2024-07-12 Shroya Vaidya , Matthew J. Coak , Daniel A. Mayoh , Martin R. Lees , Geetha Balakrishnan , John Singleton , Paul A. Goddard

Thin van der Waals (vdW) layered magnetic materials disclose the possibility to realize vdW heterostructures with new functionalities. Here we report on the realization and investigation of tunneling spin valves based on van der Waals…

Mesoscale and Nanoscale Physics · Physics 2018-06-15 Zhe Wang , Deepak Sapkota , Takashi Taniguchi , Kenji Watanabe , David Mandrus , Alberto F. Morpurgo

The topological Hall effect (THE) has attracted great attention since it provides an important probe of the interaction between electron and topological spin textures. THE has been considered an experimental signature of the topological…

Realizing magnetic skyrmions in two-dimensional (2D) van der Waals (vdW) ferromagnets offers unparalleled prospects for future spintronic applications. The room-temperature ferromagnet Fe3GaTe2 provides an ideal platform for tailoring these…

The emergent two-dimensional (2D) ferromagnetic materials with unique magnetic properties have endowed great potential for next-generation spintronic devices with extraordinary merits of high flexibility, easy controllability, and high…

Two-dimensional (2D) van der Waals (vdW) magnetic materials have attracted a lot of attention owing to the stabilization of long-range magnetic order down to atomic dimensions, and the prospect of novel spintronic devices with unique…

Magnetic tunnel junctions (MTJs) based on all-two dimensional (2D) van der Waals heterostructures with sharp and clean interfaces in atomic scale are essential for the application of next-generation spintronics. However, the lack of…

Mesoscale and Nanoscale Physics · Physics 2023-10-20 Wen Jin , Gaojie Zhang , Hao Wu , Li Yang , Wenfeng Zhang , Haixin Chang

Fe3GeTe2 is a 2-dimensional van der Waals material exhibiting itinerant ferromagnetism upto 230 K. Here, we study aspects of scattering mechanism in Fe3Ge2Te2 single crystals via resistivity, magneto-transport and Hall effect measurements.…

Strongly Correlated Electrons · Physics 2022-09-09 P. Saha , M. Singh , V. Nagpal , P. Das , S. Patnaik

Magnetic semimetals form an attractive class of materials because of the non-trivial contributions of itinerant electrons to magnetism. Due to their relatively low-carrier-density nature, a doping level of those materials could be largely…

Materials Science · Physics 2025-03-20 Hideki Matsuoka , Shun Kajihara , Yue Wang , Yoshihiro Iwasa , Masaki Nakano

All-electrical methods for nucleating, detecting, and manipulating spin textures in two-dimensional (2D) van der Waals (vdW) magnets can serve as fundamental building blocks for multi-state spintronic memory, logic, and neuromorphic…

Mesoscale and Nanoscale Physics · Physics 2025-12-09 Bing Zhao , Roselle Ngaloy , Lars Sjöström , Saroj P. Dash

In the quest for two-dimensional conducting materials with high ferromagnetic ordering temperature the new family of the layered Fe$_{n}$GeTe$_{2}$ compounds, especially the near-room-temperature ferromagnet Fe$_{4}$GeTe$_{2}$, receives a…

The discovery of van der Waals (vdW) magnetic materials exhibiting non-trivial and tunable magnetic interactions can give rise to exotic magnetic states, which are not readily attainable with conventional materials. Such vdW magnets can…

Mesoscale and Nanoscale Physics · Physics 2024-10-11 Bing Zhao , Lakhan Bainsla , Soheil Ershadrad , Lunjie Zeng , Roselle Ngaloy , Peter Svedlindh , Eva Olsson , Biplab Sanyal , Saroj P. Dash

Recent advancements in 2D magnetic materials have attracted a growing interest driven by their unique properties and potential applications in spintronic devices. However, the scarcity of systems that exhibit magnetism at room-temperature…

Materials Science · Physics 2024-02-23 Alberto M. Ruiz , Dorye L. Esteras , Diego López-Alcalá , José J. Baldoví