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Al2O3 thin films have been deposited at substrate temperatures between 500{\deg}C to 600{\deg}C by reactive magnetron sputtering using an additional arbitrary substrate bias to tailor the energy distribution of the incident ions. The films…

We report the preparation of sodium alanate, a promising hydrogen storage material, in a thin film form using co-sputtering in a reactive atmosphere of atomic hydrogen. We study the phase formation and distribution, and the hydrogen…

Materials Science · Physics 2009-10-14 M. Filippi , J. H. Rector , R. Gremaud , M. J van Setten , B. Dam

The design of better heterogeneous catalysts for applications such as fuel cells and electrolyzers requires a mechanistic understanding of electrocatalytic reactions and the dependence of their activity on operating conditions such as pH. A…

Chemical Physics · Physics 2016-06-16 Kathleen Schwarz , Bingjun Xu , Yushan Yan , Ravishankar Sundararaman

Ultra-wide bandgap and the absence of shallow dopants are the major challenges in realizing diamond based electronics. However, the surface functionalization offers an excellent alternative to tune electronic structure of diamonds. Herein,…

Materials Science · Physics 2022-08-05 N. Mohasin Sulthana , K. Ganesan , P. K. Ajikumar , S. Dhara

Strain engineering is a powerful tool routinely used to control and enhance properties such as ferroelectricity, magnetic ordering, or metal-insulator transitions. Epitaxial strain in thin films allows manipulation of in-plane lattice…

Simulations are used to examine the microscopic origins of strain hardening in polymer glasses. While stress-strain curves for a wide range of temperature can be fit to the functional form predicted by entropic network models, many other…

Soft Condensed Matter · Physics 2009-11-13 Robert S. Hoy , Mark O. Robbins

The optical and magneto-optical properties of thin epitaxial Ni-Mn-Ga films, with thicknesses ranging from 8 to 160 nm, were investigated across the spectral range of 0.7-6.4 eV. The films were deposited by DC magnetron sputtering on MgO…

Materials Science · Physics 2025-07-08 M. Makeš , J. Zázvorka , M. Hubert , P. Veřtát , M. Rameš , J. Zemen , O. Heczko , M. Veis

Spin transfer torque (STT) driven by a charge current plays a key role in magnetization switching in heavy-metal/ferromagnetic-metal structures. The STT efficiency defined by the ratio between the effective field due to STT and the current…

Materials Science · Physics 2020-03-18 Jianshu Xue , Yaping Guo , Ledong Wang , Yanan Dong , Yanxue Chen , Yufeng Tian , Shishen Yan , Lihui Bai

Strain engineering is a powerful and widely used strategy for boosting the performance of electronic and optoelectronic devices. Here, we demonstrate an approach to tune the photoelectric properties of Platinum sulfide (PtS$_2$) by using a…

Applied Physics · Physics 2021-05-27 Yana Cui , Wentao Gong , Gang Zhao , Weike Wang

Hydrogen is a promising energy carrier for replacing fossil fuels, and hydrogen production via hydrogen evolution reaction (HER) is an environmentally friendly option if electrocatalysts with low overpotentials and long-term stability are…

Plastic deformation in microscale differs from the macroscopic plasticity in two respects: (i) the flow stress of small samples depends on their size (ii) the scatter of plasticity increases significantly. In this work we focus on the…

Materials Science · Physics 2015-03-10 Olga Kapetanou , Vasilis Koutsos , Efstathios Theotokoglou , Daniel Weygand , Michael Zaiser

SSMO50 thin films were deposited by DC magnetron sputtering on LAO and STO substrates. The film on LAO is under compressive strain, while the film on STO is under tensile strain. All the magnetic and magnetotransport properties have been…

Materials Science · Physics 2015-06-12 M. K. Srivastava , A. Kaur , K. K. Maurya , V. P. S. Awana , H. K. Singh

The article consists of four sections all dealing with the computational modeling of the sputtering process. The first section deals with the difference in Bismuth atomic layer deposition at different polar angle and ion flounce. In the…

The evolution in the surface morphology of epitaxial graphene films and 6H-SiC(0001) substrates is studied by electron channeling contrast imaging. Whereas film thickness is determined by growth temperature only, increasing growth times at…

Materials Science · Physics 2009-11-13 Nicola Ferralis , Jason Kawasaki , Roya Maboudian , Carlo Carraro

Electrochemical phenomena in ferroelectrics are of particular interest for catalysis and sensing applications, with recent studies highlighting the combined role of the ferroelectric polarisation, applied surface voltage and overall…

Half-Heusler compounds exhibit a remarkable variety of emergent properties such as heavy-fermion behaviour, unconventional superconductivity and magnetism. Several of these compounds have been predicted to host topologically non-trivial…

Metals exhibit nonequilibrium electron and lattice subsystems at transient times following femtosecond laser excitation. In the past four decades, various optical spectroscopy and time-resolved diffraction methods have been used to study…

Chemical Physics · Physics 2024-05-17 Xing He , Mithun Ghosh , Ding-Shyue Yang

Determining the nature of surface roughness and electrode pore structure on H2 bubble evolution rate and quantity, and bubble trapping under electrolytic conditions is important for quantifying useful gas production during total water…

Materials Science · Physics 2025-12-19 Matthew Ferguson , Alex Lonergan , Christopher Kent , Dara Fitzpatrick , Colm O'Dwyer

Hydrogen can penetrate reversibly a number of metals, occupy the interstitial sites and cause large expansion of the crystal lattice. The question discussed here is whether the kinetics of the structural response matches hydrogen…

Materials Science · Physics 2020-08-14 S. S. Das , G. Kopnov , A. Gerber

Mn-based nitrides with antiperovskite structures have several properties that can be utilised for antiferromagnetic spintronics. Their magnetic properties depend on the structural quality, composition and doping of the cubic antiperovskite…

Materials Science · Physics 2025-01-08 Christoph Sürgers , Gerda Fischer , Sihao Deng , Dongmei Hu , Cong Wang