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The effect of confining walls on the fluctuation of a nanoscale thin film's free surface is studied using stochastic thin-film equations (STFEs). Two canonical boundary conditions are employed to reveal the influence of the confinement: (1)…

Fluid Dynamics · Physics 2023-01-25 Jingbang Liu , Chengxi Zhao , Duncan A. Lockerby , James E. Sprittles

Understanding microscopic heat conduction in thin films is important for nano/micro heat transfer and thermal management for advanced electronics. As the thickness of thin films is comparable to or shorter than a phonon wavelength, phonon…

Materials Science · Physics 2021-05-19 Michimasa Morita , Takuma Shiga

Disorder driven superconductor to insulator transition via intermediate metallic regime is reported in nano-crystalline thin films of molybdenum. The nano-structured thin films have been deposited at room temperature using DC magnetron…

Superconductivity · Physics 2017-04-03 Shilpam Sharma , E. P. Amaladass , Neha Sharma , V. Harimohan , S. Amirthapandian , Awadhesh Mani

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

By knowing the phase and modules of the reflection coefficient in neutron reflectometry problems, a unique result for the scattering length density (SLD) of a thin film can be determined which will lead to the exact determination of type…

Materials Science · Physics 2011-08-30 Saeed S. Jahromi , Seyed Farhad Masoudi

Iron-based superconductors have received much attention as a new family of high-temperature superconductors owing to their unique properties and distinct differences from cuprates and conventional superconductors. This paper reviews…

Superconductivity · Physics 2011-12-30 Hidenori Hiramatsu , Takayoshi Katase , Toshio Kamiya , Hideo Hosono

The superconducting proximity effect is investigated for SN double layers in a regime where the resulting transition temperature T_{c} does not depend on the mean free paths of the films and, within limits, not on the transparency of the…

Mesoscale and Nanoscale Physics · Physics 2009-11-11 M. Zhang , G. Tateishi , G. Bergmann

Finite-difference time-domain method is employed to investigate the optical properties of semiconductor thin films patterned with circular holes. The presence of holes enhances the coupling of the incident plane wave with the thin film and…

Mesoscale and Nanoscale Physics · Physics 2013-12-06 Minhan Lou , Hua Bao , Changying Zhao

The electrical conductance of molecular beam epitaxial Bi on BaF2(111) was measured as a function of both film thickness (4-540 nm) and temperature (5-300 K). Unlike bulk Bi as a prototype semimetal, the Bi thin films up to 90 nm are found…

Mesoscale and Nanoscale Physics · Physics 2015-06-03 Shunhao Xiao , Dahai Wei , Xiaofeng Jin

We present a novel approach for computing the surface roughness-limited thermal conductivity of silicon nanowires with diameter D < 100 nm. A frequency-dependent phonon scattering rate is computed from perturbation theory and related to a…

Other Condensed Matter · Physics 2009-11-13 Pierre Martin , Zlatan Aksamija , Eric Pop , Umberto Ravaioli

Inspired by nature, we investigate the short-range order effect on the physical properties of amorphous materials. Amorphous Al2O3 thin films exhibit a higher proportion of their 4-coordinated Al sites close to the surface, causing…

Materials Science · Physics 2019-05-22 Yael Etinger-Geller , Ekaterina Zoubenko , Maria Baskin , Lior Kornblum , Boaz Pokroy

The microscopic nature of an insulating state in the vicinity of a superconducting state, in the presence of disorder, is a hotly debated question. While the simplest scenario proposes that Coulomb interactions destroy the Cooper pairs at…

The interplay between substrates and superconducting thin films has attracted increasing attention. Here, we report an in-depth investigation on superconducting properties of the epitaxial TiN thin films grown on three different substrates…

Superconductivity · Physics 2025-01-27 Yixin Liu , Yuchuan Liu , Zulei Xu , Aobo Yu , Xiaoni Wang , Wei Peng , Yu Wu , Gang Mu , Zhi-Rong Lin

The room temperature growth, characterization, and electrical transport properties of magnetron sputtered superconducting Ti40V60 alloy thin films are presented. The films exhibit low surface roughness and tunable transport properties. As…

Thin-film superconductors with thickness 30 to 500 nm are used as non-equilibrium quantum detectors for photons, phonons or more exotic particles. One of the most basic questions in determining their limiting sensitivity is the efficiency…

Superconductivity · Physics 2014-03-26 T. Guruswamy , D. J. Goldie , S. Withington

We studied random resistor networks produced with regular structure and random distribution of edge conductances. These networks are intended to mimic crack-template-based transparent conductive films as well some random networks produced…

Disordered Systems and Neural Networks · Physics 2024-06-24 Yuri Yu. Tarasevich , Irina V. Vodolazskaya , Andrei V. Eserkepov , Fábio D. A. Aarão Reis

The current dependence of the excess conductivity is measured up to $\simeq 3 T_c$ for a Bi$_2$Sr$_2$CuO$_{6+\delta}$ thin film, as a function of doping. It is found to be anomalously sensitive to the transport current and to behave as a…

Superconductivity · Physics 2009-11-11 I. Sfar , Z. Z. Li , F. Bouquet , H. Raffy , L. Fruchter

The dielectric properties of thin films are of paramount important in a variety of technological applications, and of fundamental importance for solid state research. In spite of this, there is currently no theoretical understanding of the…

Materials Science · Physics 2024-04-02 Alessio Zaccone

At the ultra-thin film limit, quantum confinement strongly improves thermoelectric figure of merit in materials such as Sb$_2$Te$_3$ and Bi$_2$Te$_3$. These high quality films have only been realized using well controlled techniques such as…

Superconducting thin films with high intrinsic kinetic inductance $L_{k}$ are important for high-sensitivity detectors, enabling strong coupling in hybrid quantum systems, and enhancing nonlinearities in quantum devices. We report the…