Volcanic erruptions over Hunga-Tonga lead to unusual effects

This study investigates the effect of the Hunga-Tonga volcanic eruption (15 January 2022 at about 4:15 UT) on the infrared emission of nitric oxide (NO) and neutral density in the upper atmosphere of the Earth.

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Bulk Viscosity, Speed of Sound and Contact Structure at Intermediate Coupling

Bulk viscosity-shear viscosity ratio: ζ/η vs T/T_c for T∈[T_c,1.45 T_c], in our M-theory dual of thermal QCD-like theories at intermediate coupling (interpolating between the weak- and strong-coupling results)

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Tunable Skyrmion-Antiskyrmion Dynamics in Co/Pt Nanocontacts for Spintronics

We demonstrate controlled nucleation of topologically distinct skyrmion-antiskyrmion metastable states, skyrmioniums, and stable skyrmion pairs by leveraging inter spin-texture interactions using two 30 nm nanocontacts with varying separations

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Controllable Frequency Tunability in Spin Hall Nano-oscillators

We demonstrate how effective magnetization-driven frequency tunability enables spin Hall nano-oscillators to operate across distinct frequency regimes, facilitating diverse functionalities within a single device. This tunability also allows precise control over their mutual synchronization states.

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Enhancement and control of a coherent LSPs through pump-pulse engineering

The study tackles practical challenges related to detuning between the pump and transition frequencies of quantum dots (QDs). Employing adiabatic rapid passage technique with a linearly chirped Gaussian pulse emerges as an effective strategy for robust population transfer within QD energy levels.

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Machine learning Integrated SERS Sensor detects five respiratory viruses

A ML integrated SERS sensor is capable of single-shot, receptor-free, rapid detection and classification of five respiratory viruses including Influenza A, RSV, Rhino, and SARS-CoV-2 Omicron and Delta in clinical nasopharyngeal samples

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Ruddlesden–Popper Perovskites for Switchable Optoelectronic Universal Logic Gate

AREIS Group has developed a stable 2D RP perovskite-based electrolyte-gated optoelectronic device, enabling reconfigurable logic operations including OR, AND, and universal NOR gates as well as all electrical, optical NOT, and BUFFER gates. The work is published in Nano Letters.

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Enhanced magnetocaloric properties of high entropy spinel oxide

We have reported a large magnetic entropy change, |∆𝑆𝑚| = 1.95 𝐽 𝐾𝑔−1𝐾 −1 at around room temperature. The present study confirms that the studied specimen can find an application for magnetic refrigeration.

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