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Showing 1–13 of 13 results
Advanced filters: Author: Rajesh V Chopdekar Clear advanced filters

  • Magnetic vortices in thin ferromagnetic films possess a core with out-of-plane magnetization whose polarity can be manipulated by magnetic fields or currents for technological applications. Here, the authors demonstrate local control of the core polarity in NiFe films via an imprinted maze domain pattern.

    • Phillip Wohlhüter
    • Matthew Thomas Bryan
    • Laura Jane Heyderman
    ResearchOpen Access
    Nature Communications
    Volume: 6, P: 1-6

  • Inspired by the physics of bulk frustrated materials, arrays of coupled nanomagnets have been widely explored for the study of collective ordering and emergent behaviour. Here, the authors demonstrate interaction-driven charge screening in a thermally active artificial spin ice lattice.

    • Alan Farhan
    • Andreas Scholl
    • Sebastiaan van Dijken
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-6

  • Strings of local excitations are interesting features of a strongly correlated topological quantum matter. Here, the authors show that Boltzmann-distributed strings of local excitations also describe the topological physics of the Santa Fe geometry of artificial spin ice, which is a classical thermal system.

    • Xiaoyu Zhang
    • Ayhan Duzgun
    • Peter Schiffer
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7

  • Artificial spin ice structures can be designed that allow for the induction of thermal fluctuations, with dynamics that depend on the material and the lattice geometry.

    • Vassilios Kapaklis
    • Unnar B. Arnalds
    • Björgvin Hjörvarsson
    Research
    Nature Nanotechnology
    Volume: 9, P: 514-519

  • The remote, non-volatile and reversible optical control of ferroic orders is challenging. Here, using laser illumination, multiple orders in epitaxial mixed-phase BiFeO3 are manipulated deterministically using a thermally driven flexoelectric effect.

    • Yi-De Liou
    • Yu-You Chiu
    • Jan-Chi Yang
    Research
    Nature Materials
    Volume: 18, P: 580-587

  • One major challenge for antiferromagnetic spintronics is how to control the antiferromagnetic state. Here Jani et al. demonstrate the reversible ionic control of the room-temperature magnetic anisotropy and spin reorientation transition in haematite, via the incorporation and removal of hydrogen.

    • Hariom Jani
    • Linghu Jiajun
    • T. Venkatesan
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-10

  • Enhanced switchable ferroelectric polarization is achieved in doped hafnium oxide films grown directly onto silicon using low-temperature atomic layer deposition, even at thicknesses of just one nanometre.

    • Suraj S. Cheema
    • Daewoong Kwon
    • Sayeef Salahuddin
    Research
    Nature
    Volume: 580, P: 478-482

  • BiFeO3 has a wide application but the impact of rare-earth substitution for the evolution of the coupling mechanism is unknown. Here, the authors reveal the correlation between ferroelectricity, antiferromagnetism, a weak ferromagnetic moment, and their switching pathways in La-substituted BiFeO3.

    • Yen-Lin Huang
    • Dmitri Nikonov
    • Ramamoorthy Ramesh
    ResearchOpen Access
    Nature Communications
    Volume: 11, P: 1-8

  • Long-range order is normally related to an entropy decrease. Yet, an increase in entropy in one part of a system can induce long-range order in another. A new form of such entropy-driven order is now demonstrated in an artificial spin-ice system.

    • Hilal Saglam
    • Ayhan Duzgun
    • Peter Schiffer
    Research
    Nature Physics
    Volume: 18, P: 706-712

  • In three dimensions, magnetic Skyrmions can form extended strings. By connecting the ends of a Skyrmionic string, a magnetic Hopfion is formed. Here, the authors present experimental evidence for the appearance of Hopfions, a topological soliton defined by a Hopf number, in a magnetic system.

    • Noah Kent
    • Neal Reynolds
    • Peter Fischer
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-7