Artistic representation of the short-time motion of the atoms in a liquid. Credit: Felix Höfling

Rapid onset of molecular friction in liquids bridging between the atomistic and hydrodynamic pictures

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  • Article
    | Open Access

    Antiferromagnetic systems are becoming an appealing alternative for spintronic-based devices due to the more rapid magnetisation dynamics when compared to their ferromagnetic counterparts. Here, using spin dynamic simulations, the authors demonstrate that the motion of domain walls can achieve supermagnonic speeds in an antiferromagnetic system by means of generation of additional domain wall pairs.

    • Rubén M. Otxoa
    • , P. E. Roy
    • , R. Rama-Eiroa
    • , J. Godinho
    • , K. Y. Guslienko
    •  & J. Wunderlich
  • Article
    | Open Access

    The Coulomb drag effect describes long-range electronic interactions between the charge carriers of two conducting channels separated by an insulating layer. Here, the authors report a graphene/MoS2 heterostructure which operates using the Coulomb drag effect with energy barrier and exhibits high carrier mobility and on/off current ratio at room temperature

    • Youngjo Jin
    • , Min-Kyu Joo
    • , Byoung Hee Moon
    • , Hyun Kim
    • , Sanghyup Lee
    • , Hye Yun Jeong
    •  & Young Hee Lee
  • Article
    | Open Access

    Refracting light waves can split at two different angles, a phenomenon called birefringence, whereas for reflected waves the incident and reflected angle are usually the same. Here, using time-resolved magneto-optical microscopy the authors report the bi-reflection of magnetic spin waves when hybridising with elastic waves.

    • Tomosato Hioki
    • , Yusuke Hashimoto
    •  & Eiji Saitoh
  • Article
    | Open Access

    Spin-orbit torque driven oscillators, such as spin Hall oscillators, form a class of devices that are intensively studied due to potential practical applications in spintronics. Here, the authors modify the conventional ferromagnetic/nonmagnetic stack to include an additional ferromagnetic layer and leverage the giant magnetoresistance effect to enhance the direct conversion of an in-plane driving current into the microwave output signal.

    • Jen-Ru Chen
    • , Andrew Smith
    • , Eric A. Montoya
    • , Jia G. Lu
    •  & Ilya N. Krivorotov
  • Article
    | Open Access

    There is an ever-increasing requirement for coolant systems and current apparatus typically exhibits low efficiency as well as relying on environmentally detrimental refrigerants. Here, the authors report a design involving a caloric material and the condensation and evaporation of a heat transfer fluid, which achieves a marked increase in performance in comparison to other types of system.

    • Lena Maria Maier
    • , Patrick Corhan
    • , Alexander Barcza
    • , Hugo A. Vieyra
    • , Christian Vogel
    • , Jan D. Koenig
    • , Olaf Schäfer-Welsen
    • , Jürgen Wöllenstein
    •  & Kilian Bartholomé
  • Article
    | Open Access

    Optical clocks have many applications, from improved GNSS measurements to fundamental tests of general relativity, but their frequency stability is limited by quantum noise and the Dick effect. The authors present and demonstrate a method to estimate the phase of an optical clock laser beyond the laser coherence time that can be used to improve the stability of these devices for applications in metrology and the search for new physics.

    • Sören Dörscher
    • , Ali Al-Masoudi
    • , Marcin Bober
    • , Roman Schwarz
    • , Richard Hobson
    • , Uwe Sterr
    •  & Christian Lisdat
  • Perspective
    | Open Access

    Interrogating emergent nonequilibrium phenomena in light-driven quantum materials requires probing microscopic spin, charge and orbital excitations at ultrafast timescales. In this Perspective, time-resolved resonant inelastic X-ray scattering is discussed as a nascent method to investigate photoinduced states of matter.

    • Matteo Mitrano
    •  & Yao Wang
  • Article
    | Open Access

    Controlling the positioning of spheroids in 3D during bioprinting is one of the main challenges hindering the scaffold-free fabrication of biologically-relevant tissues and organs. Here, the authors combine cutting edge aspiration-assisted freeform bioprinting of spheroids with self-healing yield-stress gels, obtaining precise positioning and self-assembly into 3D complex configurations.

    • Bugra Ayan
    • , Nazmiye Celik
    • , Zhifeng Zhang
    • , Kui Zhou
    • , Myoung Hwan Kim
    • , Dishary Banerjee
    • , Yang Wu
    • , Francesco Costanzo
    •  & Ibrahim T. Ozbolat
  • Article
    | Open Access

    Optical methods are extensively used for tissue imaging in the biomedical sector but they are limited for deep tissue analysis due to massive losses by strong light scattering, which can be mitigated with the use of ultrasound. The authors present proof-of-concept experiments showing transient ultrasound waves transversal to the direction of propagation of laser light that can be used to waveguide in the bulk of the scattering medium to a depth of 90 mean free paths.

    • Maxim N. Cherkashin
    • , Carsten Brenner
    • , Georg Schmitz
    •  & Martin R. Hofmann


Editor's Highlights - <i>Communications Physics</i>

Matteo Passoni - doi: 10.1038/s42005-020-00400-7

Editor's Highlights - Communications Physics

To celebrate our second birthday, our editors have selected their preferred articles from 2019.

Elena Belsole

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