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Showing 1–28 of 28 results
Advanced filters: Author: Neil. D. Mathur Clear advanced filters

  • The magnetoelastic coupling at a ferroelectric-ferromagnetic interface is shown to be dominated by shear-strain effects. Using polarised x-ray microscopy to simultaneously image the ferroic domain structures, the authors demonstrate an anomalous coupling in the ultrathin film limit.

    • Francesco Maccherozzi
    • Massimo Ghidini
    • Sarnjeet S. Dhesi
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-7

  • To address an evidence gap for the efficacy of hypertension therapy using dual drug combinations in patients of South Asian origin, a randomized clinical trial conducted in India found that three types of dual drug combinations, each administered in a single pill, had similarly large effects on reducing blood pressure.

    • Dorairaj Prabhakaran
    • Ambuj Roy
    • Neil R. Poulter
    ResearchOpen Access
    Nature Medicine
    Volume: 31, P: 3169-3175

  • Barocaloric materials offer promise in solid-state cooling devices, but few materials have been show to display giant barocaloric effects near room temperature. Here, the authors demonstrate that solid electrolyte AgI displays giant inverse barocaloric effects near its superionic phase transition at ~420 K.

    • Araceli Aznar
    • Pol Lloveras
    • Lluís Mañosa
    ResearchOpen Access
    Nature Communications
    Volume: 8, P: 1-6

  • The electrical resistance of certain materials changes enormously in a magnetic field. It has been hard to explain the magnitude of this 'colossal magnetoresistance'; but now in one group of materials — the cubic manganese perovskites — a partial explanation may have been found. In the conducting state, there is a sea of electrons, much as there is in a metal; in the high-resistance state, the current-carrying electrons are localized at atomic sites. Current can still flow, but the movement of electrons causes a physical distortion, and it appears to be this distortion that makes the resistance so high.

    • Neil Mathur
    News & Views
    Nature
    Volume: 390, P: 229-231

  • Memristors are devices whose dynamic properties are of interest because they can mimic the operation of biological synapses. The demonstration that ferroelectric domains in tunnel junctions behave like memristors suggests new approaches for designing neuromorphic circuits.

    • André Chanthbouala
    • Vincent Garcia
    • Julie Grollier
    Research
    Nature Materials
    Volume: 11, P: 860-864

  • News
    Neuropsychopharmacology
    Volume: 39, P: S648-S691

  • A tunnel junction that consists of a ferroelectric barrier layer sandwiched between two electrodes can operate as a fast, low-power and non-volatile nanoscale solid-state memory.

    • André Chanthbouala
    • Arnaud Crassous
    • Agnès Barthélémy
    Research
    Nature Nanotechnology
    Volume: 7, P: 101-104

  • A wealth of gene expression data is publicly available, yet is little use without additional human curation. Ma’ayan and colleagues report a crowdsourcing project involving over 70 participants to annotate and analyse thousands of human disease-related gene expression datasets.

    • Zichen Wang
    • Caroline D. Monteiro
    • Avi Ma’ayan
    ResearchOpen Access
    Nature Communications
    Volume: 7, P: 1-11

  • A large 'magnetoresistance' signal is observed in a system that combines a carbon nanotube as the channel for spin-polarized current with electrodes made from manganite, and shows that spin-polarized electrons are efficiently injected from manganite to nanotube and also efficiently transported through the nanotube channel.

    • Luis E. Hueso
    • José M. Pruneda
    • Neil D. Mathur
    Research
    Nature
    Volume: 445, P: 410-413

  • Elevated Zn isotope compositions occur in K-Pg sedimentary layers of three different depositional environments across North America and the Caribbean. The data indicate a volatilization event, and act as a robust mechanistic indicator of the meteorite impact at the end of the Cretaceous.

    • Ryan Mathur
    • Brandon Mahan
    • Francisca E. Oboh-Ikuenobe
    ResearchOpen Access
    Nature Communications
    Volume: 12, P: 1-8

  • Electrocaloric cooling devices traditionally comprise sub-millimetre-thick ceramic working bodies surrounded by relatively massive apparatus. Now, cooling devices that are each based on a thin polymer layer have been stacked to yield a composite lightweight device that pumps heat across a wide temperature span.

    • Xavier Moya
    • Neil D. Mathur
    News & Views
    Nature Energy
    Volume: 5, P: 941-942

  • The emergence of nanoscale features — such as magnetic and electronic patterns — in materials that are otherwise homogeneous provides a potential alternative to conventional top-down and bottom-up fabrication techniques. The way these features arise in manganite crystals is contentious, but could be explained using elasticity theory.

    • Neil Mathur
    • Peter Littlewood
    News & Views
    Nature Materials
    Volume: 3, P: 207-209

  • The DECIDE-AI checklist, resulting from a multi-stakeholder group of experts in a Delphi process and following the EQUATOR Network’s recommendations, includes key items that should be reported in early-stage clinical studies of AI-based decision support systems, to ensure a responsible and transparent deployment of AI systems in healthcare.

    • Baptiste Vasey
    • Myura Nagendran
    • Zane B. Perkins
    Reviews
    Nature Medicine
    Volume: 28, P: 924-933

  • Magnetocaloric and electrocaloric effects are driven by doing work, but this work has barely been explored, even though these caloric effects are being exploited in a growing number of prototype cooling devices.

    • Xavier Moya
    • Emmanuel Defay
    • Neil D. Mathur
    Comments & Opinion
    Nature Physics
    Volume: 11, P: 202-205

  • Complex magnetic oxides are attractive to scientists and industrialists alike because of their interesting magnetic properties. Condensed-matter physicists and chemists investigating the ordering of complex magnetic oxides can now control their properties over a variety of length scales using both physical and chemical means.

    • Neil Mathur
    News & Views
    Nature
    Volume: 400, P: 405-406

  • Chalcogenide materials form the basis of CD and DVD technologies. But an identity crisis looms in the wider field: what role do atomic reconfiguration, electronic processes and ionic movement play in these materials?

    • A. Lindsay Greer
    • Neil Mathur
    News & Views
    Nature
    Volume: 437, P: 1246-1247

  • Heat travelling down a thermal gradient has been found to undergo a significant deflection by a magnetic field in a multiferroic insulator.

    • Xavier Moya
    • Neil D. Mathur
    News & Views
    Nature Materials
    Volume: 16, P: 784-785

  • We demonstrate a single-domain photovoltaic switch based on lateral BiFeO3 channels, in which such photovoltaic switching is achieved by a coherent single-domain reversal with a short electrical pulse. We then provide visual evidence for such operations with a series of spatially and spectrally resolved short circuit photocurrent images. Specifically, it reveals that the sequential photovoltaic current images directly reflect the remanent polarization states of a single-domain channel. We also verify that, in multidomain channels, the diffusive switching characteristics is determined not only by the internal polarization vector within the domain but also by oxygen vacancy migration at the domain walls.

    • Ji Ho Sung
    • Won-Mo Lee
    • Moon-Ho Jo
    ResearchOpen Access
    NPG Asia Materials
    Volume: 5, P: e38