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The ability to control magnetic interactions at the nanoscale is crucial for the development of next-generation spintronic devices and functional magnetic materials. In this work, we investigate theoretically, by means of many-body…

Mesoscale and Nanoscale Physics · Physics 2025-09-18 Tomas T. Osterholt , D. O. Oriekhov , Lumen Eek , Cristiane Morais Smith , Rembert A. Duine

Within the racetrack memory paradigm, systems exploiting magnetic guiding potentials instead of geometrical ones, allow for enhancing the versatility of the final devices adding magnetic reconfigurable capabilities. Hard/soft magnetic…

Materials Science · Physics 2025-07-25 V. V. Fernández , S. Ferrer , A. Hierro-Rodríguez , M. Vélez

There are increasing evidences that ferroelectric states at the nanoscale can exhibit fascinating topological structures including polar vortices and skyrmions,akin to those observed in the ferromagnetic systems. Here we report the…

Mesoscale and Nanoscale Physics · Physics 2017-11-06 Zijian Hong , Long-Qing Chen

The unique physics found in moir\'e superlattices of twisted or lattice-mismatched atomic layers hold great promise for future quantum technologies. However, twisted configurations are typically thermodynamically unfavorable, making the…

Materials Science · Physics 2022-11-02 Matthieu Fortin-Deschênes , Kenji Watanabe , Takashi Taniguchi , Fengnian Xia

Layered ruthenates are a unique class of systems which manifests a variety of electronic and magnetic features emerged from competing energy scales. At the heart of such features lies the multi-orbital physics, especially, the…

Strongly Correlated Electrons · Physics 2022-11-08 Minjae Kim , Chang-Jong Kang , Jae-Ho Han , Kyoo Kim , Bongjae Kim

Moir\'e engineering in layered crystals has recently gained considerable attention due to the discovery of various structural and physical phenomena, including interfacial reconstruction, superconductivity, magnetism, and distinctive…

Materials Science · Physics 2025-08-14 Jieun Yeon , Kihyun Lee , Myeongjin Jang , Tae Keun Yun , Jongho Park , Changyoung Kim , Kwanpyo Kim

Superperiodic patterns near a step edge were observed by STM on several-layer-thick graphite sheets on a highly oriented pyrolitic graphite substrate, where a dislocation network is generated at the interface between the graphite overlayer…

Twisted two-dimensional bi-layers offer exquisite control on the electronic bandstructure through the interlayer rotation and coupling, enabling magic-angle flat-band superconductivity and moir\'e excitons. Here, we demonstrate how…

Double perovskite oxides (DPOs) with two transition metal ions ($A_2$$BB^\prime$O$_6$) offer a fascinating platform for exploring exotic physics and practical applications. Studying these DPOs as ultrathin epitaxial thin films on single…

Potassium tantalate KTaO3 is a cubic, paraelectric perovskite ceramic that exhibits surprising ductility at room temperature as most recently reported. Much like strontium titanate (SrTiO3), plastic deformation is accommodated by…

Materials Science · Physics 2025-02-05 Pierre Hirel , Franck Junior Kakdeu Yewou , Jiawen Zhang , Wenjun Lu , Xufei Fang , Philippe Carrez

Topological vortex textures in magnetic disks have garnered great attention due to their interesting physics and diverse applications. However, up to now, the vortex state has mainly been studied in microsize ferromagnetic disks, which have…

Mesoscale and Nanoscale Physics · Physics 2025-04-14 Ji Zou , Even Thingstad , Se Kwon Kim , Jelena Klinovaja , Daniel Loss

Superlattice engineering in van der Waals heterostructures (e.\,g.\ by moir\'e engineering) provides a powerful platform for designing electronic bands and realising correlated and topological quantum phenomena. Here, we pioneer a scheme to…

Mesoscale and Nanoscale Physics · Physics 2026-03-18 Keda Jin , Lennart Klebl , Zachary A. H. Goodwin , Junting Zhao , Felix Lüpke , Dante M. Kennes , Jose Martinez-Castro , Markus Ternes

Electronic tunability in crystals with weakly-bound layers can be achieved through layer stacking order. One such example is MoTe$_2$, where the low-temperature orthorhombic T$_d$ phase is topological and host to Weyl quasiparticles. The…

Materials Science · Physics 2019-04-17 John A. Schneeloch , Chunruo Duan , Xiaoping Wang , Jun Liu , Junjie Yang , Despina Louca

The electronic and structural properties of atomically thin materials can be controllably tuned by assembling them with an interlayer twist. During this process, constituent layers spontaneously rearrange themselves in search of a lowest…

We account for lateral orderings of III-V nanostructures resulting from a GaAs/InAs/InGaAs/GaAs sequence grown on GaAs by metallorganic vapour phase epitaxy at two different temperatures. For both samples, the ordering is induced by the…

Materials Science · Physics 2007-05-23 Jose Coelho , Gilles Patriarche , Frank Glas , Guillaume Saint-Girons , Isabelle Sagnes

Two-dimensional van der Waals crystals arise limitless scope for designing novel combinations of physical properties via controlling the stacking order or twist angle of individual layers. Lattice orientation between stacked monolayers is…

Carbon-elastomer composites exhibit complex piezoresistive behaviour that cannot be fully explained by existing macroscopic or microstructural models. In this work, we introduce a network-based modelling methodology to explore the…

Soft Condensed Matter · Physics 2026-01-01 Logan Ritchie , Elke Pahl , Iain Anderson

The past decade's discovery of topological excitations in nanoscale ferroelectrics has turned the prevailing view that the polar ground state in these materials is uniform. However, the systematic understanding of the topological polar…

Mesoscale and Nanoscale Physics · Physics 2023-04-05 Svitlana Kondovych , Maksim Pavlenko , Yurii Tikhonov , Anna Razumnaya , Igor Lukyanchuk

Moir\'e superlattices can induce correlated-electronic phases in twisted van-der-Waals materials. Strongly correlated quantum phenomena emerge, such as superconductivity and the Mott-insulating state. However, moir\'e superlattices produced…

Altermagnetism -a magnetic state characterized by spin-polarized electronic bands at zero net magnetization- offers a promising route for next-generation spintronic devices. In two-dimensional (2D) magnets, twist engineering enables its…

Materials Science · Physics 2026-02-24 Alberto M. Ruiz , Andrei Shumilin , Rafael González-Hernández , José J. Baldoví