Magneto-optics articles within Nature Communications

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  • Article
    | Open Access

    The two dimensional magnetoplasmon edge state has been observed for a long time, but its nature is yet to be uncovered. Here, Jin et al. report that such a state is actually topological protected, analogous to the chiral Majorana edge state in a p-wave topological superconductor.

    • Dafei Jin
    • , Ling Lu
    •  & Nicholas X. Fang

  • Article
    | Open Access

    The motion of particles in a quantum condensate state are described by a single macroscopic wave function, leading to a host of unusual properties. Here, the authors generate such a condensation of magnetically induced excitons, known as cyclotron magnetoexcitons, in a high-mobility quantum well.

    • L. V. Kulik
    • , A. S. Zhuravlev
    •  & S. Schmult

  • Article
    | Open Access

    Weyl particles are massless relativistic fermions recently observed in solid-state materials where they are characterized by Weyl points: topologically protected crossings in their band structure. Here, the authors demonstrate a novel type of plasmonic Weyl point in a magnetized plasma.

    • Wenlong Gao
    • , Biao Yang
    •  & Shuang Zhang

  • Article
    | Open Access

    Components such as isolators, circulators and gyrators are non-reciprocal in that they allow electromagnetic waves to flow in one direction but not the other. Here, the authors demonstrate a radio-frequency circulator that is compatible with and integrated in a complementary metal-oxide semiconductor integrated circuit.

    • Negar Reiskarimian
    •  & Harish Krishnaswamy

  • Article
    | Open Access

    In the ultrafast manipulation of magnetization by light, it is thought that the electric field couples only indirectly to spins via spin-orbit interaction. Here, the authors demonstrate inverse magneto-refraction, a direct optical modification of the exchange interaction allowed for any material symmetry.

    • R.V. Mikhaylovskiy
    • , E. Hendry
    •  & A.V. Kimel

  • Article
    | Open Access

    By incorporating magnetic materials into periodic nanostructures, additional control over the magneto-optical response of the system can be introduced. Kataja et al. show that arrays of magnetic nanoparticles exhibit Fano-type surface plasmon resonances with cross-coupling tuned by the lattice symmetry.

    • M. Kataja
    • , T. K. Hakala
    •  & P. Törmä

  • Article
    | Open Access

    Metamaterials can be engineered to provide electric and magnetic responses that cannot be achieved in natural media. Here, the authors present a metamaterial based on plasmonic chevron nanowires that it exhibits a large reciprocal magneto-electro-optical effect driven by the Lorentz force.

    • João Valente
    • , Jun-Yu Ou
    •  & Nikolay I. Zheludev

  • Article
    | Open Access

    Masers are promising for applications that use microwave radiation. Here, the authors present a compact room-temperature maser design using a high permittivity dielectric material for the resonator to achieve low optical pumping powers. This design pushes masers closer towards their promised applications.

    • Jonathan Breeze
    • , Ke-Jie Tan
    •  & Neil McN Alford

  • Article |

    Optical delay is essential to classical and quantum optical communication. Here, the authors realize prolonged optical delay with cascaded of electromagnetically induced transparency by integrating phonon–phonon and optomechanical coupling in a single on-chip device.

    • Linran Fan
    • , King Y. Fong
    •  & Hong X. Tang

  • Article
    | Open Access

    Optical methods allow for the excitation of diverse magnetic phenomena in nanostructured materials. Here, Uchida et al. demonstrate how pure spin current may be generated across a Pt/BiY2Fe5O12thin film interface by optically exciting surface plasmon resonance in embedded gold nanoparticles.

    • K. Uchida
    • , H. Adachi
    •  & E. Saitoh

  • Article
    | Open Access

    Single-atom dopants embedded in a semiconductor matrix are of potential use for optical, spintronics as well as information storage applications. Here, Kobak et al.realize CdTe and CdSe quantum dots with single cobalt and manganese ions and show how the quantum dot design influences single-spin relaxation time.

    • J. Kobak
    • , T. Smoleński
    •  & W. Pacuski

  • Article |

    Spin–orbit-driven effects are of great interest for spintronic applications but the underlying mechanisms are challenging to probe. Here, the authors develop a sensitive spin–orbit torque magnetometer to quantify the interface and bulk contributions to the spin–orbit torques in magnetic bilayers.

    • Xin Fan
    • , Halise Celik
    •  & John Q. Xiao

  • Article
    | Open Access

    Magneto-optical effects, where magnetic fields affect light propagating through a material, are of interest for photonic devices such as switches. The magneto-optical effect discovered here in metal-dielectric nanostructures shows a strong light modulation that is suitable for nanophotonic applications.

    • V. I. Belotelov
    • , L. E. Kreilkamp
    •  & M. Bayer

  • Article |

    Graphene exhibits interesting optical and electronic properties, resulting from a Dirac dispersion of electrons. Shimano et al.observe quantum magneto-optical Faraday and Kerr effects in the terahertz regime, where plateaus are observed at the quantum-Hall steps.

    • R. Shimano
    • , G. Yumoto
    •  & H. Aoki

  • Article
    | Open Access

    The Faraday effect rotates the polarization plane of light in magneto-optical materials and is used for optical isolators blocking unwanted backscattering of light. Usually a small effect, Chin et al. have observed a large enhancement of the optical rotation by magneto-plasmonics.

    • Jessie Yao Chin
    • , Tobias Steinle
    •  & Harald Giessen

  • Article
    | Open Access

    Light-matter interactions are generally dominated by electric fields and electric-dipole transitions. This study, however, quantifies magnetic contributions to light emission and so exploits the strong natural magnetic-dipole transitions in lanthanide ions to measure optical-frequency magnetic fields.

    • Tim H. Taminiau
    • , Sinan Karaveli
    •  & Rashid Zia

  • Article
    | Open Access

    Until now, invisibility cloaks have only covered a region of a few wavelengths because of their nanostructured materials. Chenet al.describe a macroscopic cloak, made of calcite birefringent crystals, which works for a specific polarization at visible wavelengths.

    • Xianzhong Chen
    • , Yu Luo
    •  & Shuang Zhang

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