Research

This list contains the 50 most recently published research articles, including advance online publication articles that have not yet been published in a journal issue.

Showing: 1–25 of 50

AOP
  1. Oleoplaning droplets on lubricated surfaces AOP

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    Lubricated surfaces are known to display extreme liquid repellency. Such behaviour is now confirmed to be due to the formation of a film between the surface and the repelled liquid, with a thickness profile following the Landau–Levich–Derjaguin law.

  2. Quantum spin Hall state in monolayer 1T'-WTe2 AOP

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    A combination of photoemission and scanning tunnelling spectroscopy measurements provide compelling evidence that single layers of 1T'-WTe2 are a class of quantum spin Hall insulator.

    See also: News and Views by Aravind Devarakonda et al.

  3. Efficient generation of energetic ions in multi-ion plasmas by radio-frequency heating AOP

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    Triggering and sustaining fusion reactions — with the goal of overall energy production — in a tokamak plasma requires efficient heating. Radio-frequency heating of a three-ion plasma is now experimentally shown to be a potentially viable technique.

  4. Dynamic scaling in natural swarms AOP

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    Swarms and statistical physics seem like natural bedfellows, but concepts like scaling are yet to prove directly applicable to insect group dynamics. A study of midges suggests they are, and that they may give rise to a new universality class.

  5. Rotational superradiant scattering in a vortex flow AOP

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    The amplification of waves reflected from a rotating obstacle, or superradiance, has been predicted in hydrodynamics and black-hole physics. An experiment with rotating vortex flows confirms this phenomenon.

  6. Dispersive charge density wave excitations in Bi2Sr2CaCu2O8+δ AOP

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    Ultrahigh-resolution resonant inelastic X-ray scattering shows how dispersive charge density wave excitations influence the charge and lattice degrees of freedom in a high-Tc cuprate, pointing to a connection to the mysterious pseudogap state.

  7. Large orbital polarization in a metallic square-planar nickelate AOP

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    A careful study of the low-valent, quasi-two-dimensional trilayer metallic nickelate Pr4Ni3O8 is presented, revealing this system to be a close analogue of cuprate systems, and offering tantalizing hope that it may superconduct if appropriate electron doping can be achieved.

  8. Microwave spectroscopy of spinful Andreev bound states in ballistic semiconductor Josephson junctions AOP

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    Andreev bound states in semiconductor–superconductor hybrid structures are studied using microwave spectroscopy — a tool that could be also used for investigating Majorana modes.

  9. Direct measurement of polariton–polariton interaction strength AOP

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    Exciton–polariton condensates have garnered interest as a means to access macroscopic displays of quantum phenomena such as Bose–Einstein condensation and superfluidity. In this work, a direct measure of the polariton–polariton interaction is obtained.

  10. Room-temperature superfluidity in a polariton condensate AOP

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    Superfluidity is a phenomenon usually restricted to cryogenic temperatures, but organic microcavities provide the conditions for a superfluid flow of polaritons at room temperature.

    See also: News and Views by Thilo Stöferle

  11. Controlled release of multiphoton quantum states from a microwave cavity memory AOP

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    The ability to transfer quantum information from a memory to a flying qubit is important for building quantum networks. The very fast release of a multiphoton state in a microwave cavity memory into propagating modes is demonstrated.

  12. Direct optical detection of Weyl fermion chirality in a topological semimetal AOP

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    Measuring the photocurrent response to circularly polarized mid-infrared light provides direct access to the chirality of Weyl fermions in Weyl semimetals — the property responsible for a range of exotic phenomena.

  13. Separating the configurational and vibrational entropy contributions in metallic glasses AOP

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    When a glass transforms into a liquid, is the absorbed specific heat vibrational or configurational in origin? Vibrational spectroscopy experiments on strong and fragile metallic glasses now strongly suggest the latter.

  14. Attosecond chronoscopy of electron scattering in dielectric nanoparticles AOP

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    Attosecond streaking is used to study the dynamics of electron scattering in dielectric nanoparticles in real time. Revealing the mechanisms involved is the first step towards understanding electron scattering in more complex dielectrics.

  15. Measuring out-of-time-order correlations and multiple quantum spectra in a trapped-ion quantum magnet AOP

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    Characterizing the correlations of quantum many-body systems is known to be hard, but there are ways around: for example, a new method for measuring out-of-time correlations demonstrated in a Penning trap quantum simulator with over 100 ions.

    See also: News and Views by Monika Schleier-Smith