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Permalloy Ni$_{80}$Fe$_{20}$ is one of the key magnetic materials in the field of magnonics. Its potential would be further unveiled if it could be deposited in three dimensional (3D) architectures of sizes down to the nanometer. Atomic…

We report on the first realization of sub-Doppler laser cooling of 39K atoms using degenerate 3D Raman sideband cooling. We take advantage of the well-resolved excited hyperfine states on the D1 optical transition to produce spin polarized…

Quantum Gases · Physics 2017-03-30 Michael Gröbner , Philipp Weinmann , Emil Kirilov , Hanns-Christoph Nägerl

Various new phenomena emerge in quantum materials under elastic deformations, such as hydrostatic or uniaxial stresses. In particular, using uniaxial strain or stress can help to tune or uncover specific structural or electronic orders in…

Applied Physics · Physics 2019-12-30 Donovan Davino , Jacob Franklin , Ilya Sochnikov

The statistical-thermodynamic dislocation theory developed in previous papers is used here in an analysis of high-temperature deformation of aluminum and steel. Using physics-based parameters that we expect theoretically to be independent…

Materials Science · Physics 2017-07-19 K. C. Le , T. M. Tran , J. S. Langer

This work reports back-end-of-line (BEOL) compatible, thin-film transistors (TFTs) with sub-10 nm tungsten-doped tin oxide (TWO) channels deposited by atomic layer deposition (ALD) at 150 $^\circ$C. TFTs with undoped SnO$_{\mathrm{x}}$,…

Niobium nitride (NbN) is a useful material for fabricating detectors because of its high critical temperature and relatively high kinetic inductance. In particular, NbN can be used to fabricate nanowire detectors and mm-wave transmission…

Instrumentation and Detectors · Physics 2020-02-03 Calder Sheagren , Peter Barry , Erik Shirokoff , Qing Yang Tang

Recent progress in hybrid nanomaterials composed of dissimilar constituents permitted to improve performance and functionality of novel devices developed for optoelectronics, catalysis, medical diagnostic and sensing. However, the rational…

Engineering strain critically affects the properties of materials and has extensive applications in semiconductors and quantum systems. However, the deployment of strain-engineered nanocatalysts faces challenges, particularly in maintaining…

Materials Science · Physics 2024-07-29 Chuqiao Shi , Zhihua Cheng , Alberto Leonardi , Yao Yang , Michael Engel , Matthew R. Jones , Yimo Han

Atomic layer deposition (ALD) provides uniform and conformal thin films that are of interest for a range of applications. To better understand the properties of amorphous ALD films, we need improved understanding of their local atomic…

Materials Science · Physics 2021-02-12 Ahmed M. Jasim , Xiaoqing He , Yangchuan Xing , Tommi A. White , Matthias J. Young

We present a joint experimental and theoretical study of the superconducting phase of the layered binary silicide BaSi2. Compared with the layered AlB2 structure of graphite or diboride-like superconductors, in the hexagonal structure of…

We report the growth of aluminum (111) thin film by atomic layer deposition (ALD) technique with dimethylethylaminealane (DMEAA) as a precursor. It is found that the metallic underlayer is essential to grow uniform aluminum films by DMEAA…

Superconductivity · Physics 2021-06-08 Sameh Okasha , Yoshiaki Sekine , Satoshi Sasaki , Yuichi Harada

Effective gravity and gauge fields are emergent properties intrinsic for low-energy quasiparticles in topological semimetals. Here, taking two Dirac semimetals as examples, we demonstrate that applied lattice strain can generate warped…

Materials Science · Physics 2017-05-11 Shan Guan , Zhi-Ming Yu , Ying Liu , Gui-Bin Liu , Liang Dong , Yunhao Lu , Yugui Yao , Shengyuan A. Yang

The influence of alternating shear orientation and strain amplitude of cyclic loading on yielding in amorphous solids is investigated using molecular dynamics simulations. The model glass is represented via a binary mixture that was rapidly…

Soft Condensed Matter · Physics 2020-12-08 Nikolai V. Priezjev

Quantum two-level systems (TLSs) intrinsic to glasses induce decoherence in many modern quantum devices, such as superconducting qubits. Although the low-temperature physics of these TLSs is usually well-explained by a phenomenological…

Unpredictable Kirkendall void formation at the interface of circuit interconnections underlies degradation in electronics, yet there is a lack of effective approaches to curb the amount of these voids. Here we developed a strain-anneal…

Materials Science · Physics 2017-12-20 Chongyang Cai , Rong An , Chunqing Wang , Yanhong Tian

Electrically interfacing atomically thin transition metal dichalcogenide semiconductors (TMDSCs) with metal leads is challenging because of undesired interface barriers, which have drastically constrained the electrical performance of TMDSC…

Area-selective atomic layer deposition (AS-ALD) is an emerging technology in semiconductor manufacturing. However, accurately understanding inhibitor reactivity on surfaces remains challenging, particularly when the substrate is amorphous.…

Materials Science · Physics 2025-10-21 Gijin Kim , Purun-hanul Kim , Suk Gyu Hahm , Myongjong Kwon , Byungha Park , Changho Hong , Seungwu Han

Thermal annealing is a widely used thin-film processing technique for modifying interfacial optical losses and electronic scattering in plasmonic materials. Here, we investigate how thermal annealing of gold thin films deposited on silicon…

Optics · Physics 2026-01-09 A. Márquez , R. Esquivel-Sirvent

We describe measurements demonstrating laser cooling of an atomic gas by means of collisional redistribution of radiation. The experiment uses rubidium atoms in the presence of several hundred bar of argon buffer gas pressure. Frequent…

Atomic Physics · Physics 2012-01-04 Ulrich Vogl , Anne Saß , Simon Haßelmann , Martin Weitz

Time-division multiplexing of cryogenic signals is a promising approach to reduce space requirements, shorten cooldown times, and increase the number of quantum devices measured per cooldown. We demonstrate time-division multiplexing of…

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