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We study light diffraction in the periodically modulated ultrathin metal films both analytically and numerically. Without modulation these films are almost transparent. The periodicity results in the anomalous effects, such as suppression…

Other Condensed Matter · Physics 2015-05-13 I. S. Spevak , A. Yu. Nikitin , E. V. Bezuglyi , A. Levchenko , A. V. Kats

We investigated the inhomogeneous electronic properties at the surface and interior of VO_{2} thin films that exhibit a strong first-order metal-insulator transition (MIT). Using the crystal structural change that accompanies a VO_{2} MIT,…

Strongly Correlated Electrons · Physics 2009-11-13 Y. J. Chang , J. S. Yang , Y. S. Kim , D. H. Kim , T. W. Noh , D. -W. Kim , E. OH , B. Kahng , J. -S. Chung

Recently, lattice dynamics of the highly strained europium monoxide, as a promising candidate for strong ferroelectric-ferromagnet material, applied in the next-generation storage devices, attracted huge attention in the solid-state…

Materials Science · Physics 2019-09-23 Alireza Kashir , Hyeon-Woo Jeong , Woochan Jung , Yoon Hee Jeong , Gil-Ho Lee

Negative activation volumes for dielectric relaxation are rarely reported in solid state physics and are limited to atomic scale processes. Broadband Dielectric Spectroscopy on heterogeneous systems, such as polycrystalline calcite and…

Geophysics · Physics 2025-05-23 Anthony N. Papathanassiou

Surface effect of low-surface-tension contaminants accumulating at the evaporation surface can easily induce membrane wetting in the application of membrane distillation, especially in hypersaline scenarios. In this work, we propose a novel…

Chemical Physics · Physics 2023-12-25 Yanni Ma , Zehua Yu , Xifan Fu , Zhi Huang , Tenghui Qiu , Na Zhao , Huidong Liu , Kang Liu

Optical properties of compressed fluid hydrogen in the region where dissociation and metallization is observed are computed by ab-initio methods and compared to recent experimental results. We confirm that above 3000 K both processes are…

Materials Science · Physics 2019-09-04 Giovanni Rillo , Miguel A. Morales , David M. Ceperley , Carlo Pierleoni

We present our work on High Energy Material detection based on thin film of Lithium using the phenomenon of Optical Pumping. The Li atoms present in the thin film are optically pumped to one of the ground hyperfine energy levels so that…

Atomic Physics · Physics 2014-12-10 Sachin Barthwal , Ashok V. S

We report on the realization of silicon nitride membranes with enhanced and electrically tunable reflectivity. A subwavelength one-dimensional grating is directly patterned on a suspended 200 nm-thick, high stress commercial film using…

Mesoscale and Nanoscale Physics · Physics 2020-01-08 Bhagya Nair , Andreas Naesby , Bjarke R. Jeppesen , Aurélien Dantan

We present results from extensive molecular dynamics simulations of collapse transitions of hydrophobic polymers in explicit water focused on understanding effects of lengthscale of the hydrophobic surface and of attractive interactions on…

Statistical Mechanics · Physics 2007-05-23 Manoj V. Athawale , Gaurav Goel , Tuhin Ghosh , Thomas M. Truskett , Shekhar Garde

The growth and characterization of high quality superconducting thin films is essential for fundamental understanding and also for the use of these films in technological applications. In the present study, Ti40V60 alloy thin films have…

Harnessing electronic excitations involving coherent coupling to bosonic modes is essential for the design and control of emergent phenomena in quantum materials [1]. In situations where charge carriers induce a lattice distortion due to…

The electronic structure and chemical bonding in reactively magnetron sputtered ZrHx (x=0.15, 0.30, 1.16) thin films with oxygen content as low as 0.2 at% are investigated by 4d valence band, shallow 4p core-level and 3d core-level X-ray…

Materials Science · Physics 2017-11-07 Martin Magnuson , Susann Schmidt , Lars Hultman , Hans Högberg

It is demonstrated that persistent-photoconductivity (PPC), well-studied in lightly-doped semiconductors, is observable in GeSbTe compounds using infrared excitation at cryogenic temperatures. The low level of energy-flux necessary to…

Strongly Correlated Electrons · Physics 2015-03-26 Z. Ovadyahu

We present the dielectric and magnetodielectric properties of Pr0.6Ca0.4MnO3 polycrystalline sample. Dielectric permittivity ({\epsilon'}) (and d{\epsilon'}/dT) portrays the charge order and other magnetic transitions observed in the…

Strongly Correlated Electrons · Physics 2013-05-07 K Devi Chandrasekhar , A K Das , A Venimadhav

We experimentally demonstrate the manipulation of magnetization relaxation utilizing a temperature difference across the thickness of an yttrium iron garnet/platinum (YIG/Pt) hetero-structure: the damping is either increased or decreased…

Mesoscale and Nanoscale Physics · Physics 2013-09-26 M. B. Jungfleisch , T. An , K. Ando , Y. Kajiwara , K. Uchida , V. I. Vasyuchka , A. V. Chumak , A. A. Serga , E. Saitoh , B. Hillebrands

We investigate pattern transformations of periodic hydrogel systems that are triggered by swelling-induced structural instabilities. The types of microstructures considered in the present work include single-phase and two-phase voided…

Numerical Analysis · Mathematics 2023-05-17 Elten Polukhov , Laura Pytel , Marc-Andre Keip

We report on the transition between two regimes from several-atom clusters to much larger nanoparticles in Ar magnetron sputter deposition of WSi2, and the effect of nanoparticles on the properties of amorphous thin films and multilayers.…

A general technique to investigate charge storage characteristics of conducting polymer films has been developed. A redox reaction is conducted on a polymer film on a rotating disk electrode under potentiostatic condition so that the rate…

Chemical Physics · Physics 2013-11-19 Asfiya Q. Contractor , Vinay A. Juvekar

The near threshold "soft breakdown" measurements of PVC films conductivity are investigated. In a wide range of external electric field strength for various rather thick (>20 mkm) PVC films the resistance shows strong nonlinearity and seems…

Materials Science · Physics 2010-04-29 D. V. Vlasov , L. A. Apresyan , V. I. Krystob , T. V. Vlasova

Highly porous Pt/Al thin film electrodes on yttria stabilized zirconia electrolytes were prepared by dealloying of co-sputtered Pt/Al films. The oxygen reduction capability of the resulting electrodes was analyzed in a solid oxide fuel cell…

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