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The functionalities of a wide range of optical and opto-electronic devices are based on resonance effects and active tuning of the amplitude and wavelength response is often essential. Plasmonic nanostructures are an efficient way to create…

With the recent experimental verification that ferroelectric lattice distortions survive in the metallic phase of some materials, there is a desire to create devices that are both switchable and take advantage of the novel functionalities…

Mesoscale and Nanoscale Physics · Physics 2022-02-10 Kelsey S. Chapman , W. A. Atkinson

Chalcogenide phase change materials (PCMs) have been extensively applied in data storage, and they are now being proposed for high resolution displays, holographic displays, reprogrammable photonics, and all-optical neural networks. These…

Optics · Physics 2023-08-09 Yunzheng Wang , Jing Ning , Li Lu , Michel Bosman , Robert E. Simpson

The results of experimental researches of electroconductivity of PVC films, plasticized by patented modifier, at fields below the breakdown level are described. A possibility of management of the repeated transitions between two states with…

Soft Condensed Matter · Physics 2010-03-30 D. V. Vlasov , L. A. Apresian , V. I. Krystob , T. V. Vlasova

Superconducting nanowires undergoing quantum phase-slips have potential for impact in electronic devices, with a high-accuracy quantum current standard among a possible toolbox of novel components. A key element of developing such…

Superconductivity · Physics 2018-06-21 N. G. N. Constantino , M. S. Anwar , O. W. Kennedy , M. Dang , P. A. Warburton , J. C. Fenton

The understanding of tribo- and electro-chemical phenomenons on the molecular level at a sliding interface is a field of growing interest. Fundamental chemical and physical insights of sliding surfaces are crucial for understanding wear at…

Mesoscale and Nanoscale Physics · Physics 2016-05-10 Sukumar Rajauria , Erhard Schreck , Bruno Marchon

Phase-change materials (PCMs) can switch between different crystalline states as a function of an external bias, offering a pronounced change of their dielectric function. In order to take full advantage of these features for active…

Optics · Physics 2019-04-26 Sergey Lepeshov , Alex Krasnok , Andrea Alù

Strongly correlated insulators, such as Mott or charge-transfer insulators, exhibit a strong temperature dependence in their resistivity. Consequently, self-heating effects can lead to electrothermal instabilities in planar thin film…

In ballistic transport, the movement of charged carriers is essentially unimpeded by scattering events. In this limit, microscopic parameters such as crystal momentum, spin and quantum phases are well conserved, allowing electrons to…

Mesoscale and Nanoscale Physics · Physics 2026-02-17 Yongjin Cho , Su Jae Kim , Min-Hyoung Jung , Yousil Lee , Hu Young Jeong , Young-Min Kim , Hu-Jong Lee , Seong-Gon Kim , Se-Young Jeong , Gil-Ho Lee

Sliding parts in nanosystems such as Nano ElectroMechanical Systems (NEMS) and nanomotors, increasingly involve large speeds, and rotations as well as translations of the moving surfaces; yet, the physics of high speed nanoscale friction is…

Materials Science · Physics 2010-09-06 Roberto Guerra , Ugo Tartaglino , Andrea Vanossi , Erio Tosatti

Despite recent advances in active metaoptics, wide dynamic range combined with high-speed reconfigurable solutions is still elusive. Phase-change materials (PCMs) offer a compelling platform for metasurface optical elements, owing to the…

In a recent paper [Phys. Rev. Lett. 97, 070401 (2006)] the transition rate of magnetic spin-flip of a neutral two-level atom trapped in the vicinity of a thick superconducting body was studied. In the present paper we will extend these…

Quantum Physics · Physics 2013-05-29 Per K. Rekdal , Bo-Sture K. Skagerstam

Variability in memristive devices based on h-BN dielectrics is studied in depth. Different numerical techniques to extract the reset voltage are described and the corresponding cycle-to-cycle variability is characterized by means of the…

Mesoscale and Nanoscale Physics · Physics 2024-11-22 Juan B. Roldan , David Maldonado , C. Aguilera-Pedregosa , F. J. Alonso , Yiping Xiao , Yaqing Shen , Wenwen Zheng , Yue Yuan , Mario Lanza

We present a study of the pulsed current switching characteristics of spin-valve nanopillars with in-plane magnetized dilute permalloy and undiluted permalloy free layers in the ballistic regime at low temperature. The dilute permalloy free…

Optical devices with metastable states controlled with light (optical flip-flops) are needed in data storage, signal processing and displays. Although non-volatile optical memory relying on structural phase transitions in chalcogenide…

Optics · Physics 2021-12-22 Dimitrios Papas , Jun-Yu Ou , Eric Plum , Nikolay I. Zheludev

Chalcogenide phase-change materials (PCMs) are one of the most mature candidates for next-generation memory technology. Recently, CrGeTe3 (CrGT) emerged as a promising PCM due to its enhanced amorphous stability and fast crystallization for…

Materials Science · Physics 2024-11-12 Yihui Jiang , Suyang Sun , Hanyi Zhang , Xiaozhe Wang , Yibo Lei , Riccardo Mazzarello , Wei Zhang

Harvesting low-grade heat to electricity is attractive for powering wearable electronic devices. Here, we demonstrate nW-scale thermoelectric power generation in devices from thin film assemblies of microwave-synthesized p-Sb2Te3 nanoplates…

Thermoelectric films and periodic structures have particularly intriguing electrical and thermal transport features due to their low dimensionality. As a result, they have piqued the attention of researchers from across the spectrum of…

Materials Science · Physics 2024-02-23 Nagaraj Nandihalli

We present a design-scheme for ultra-low power neuromorphic hardware using emerging spin-devices. We propose device models for 'neuron', based on lateral spin valves and domain wall magnets that can operate at ultra-low terminal voltage of…

Disordered Systems and Neural Networks · Physics 2012-07-19 Mrigank Sharad , Charles Augustine , Georgios Panagopoulos , Kaushik Roy

Robust porous silicon substrates were employed for generating interconnected networks of superconducting ultrathin Nb nanowires. Scanning electron microscopy analysis was performed to investigate the morphology of the samples, which…

Superconductivity · Physics 2015-06-11 C. Cirillo , M. Trezza , F. Chiarella , A. Vecchione , V. P. Bondarenko , S. L. Prischepa , C. Attanasio
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