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A quasi 2-dimensional recursive lattice formed by planar elements have been designed to investigate the surface thermodynamics of Ising spin glass system with the aim to study the metastability of supercooled liquids and the ideal glass…

Statistical Mechanics · Physics 2015-02-24 Ran Huang , Purushottam D. Gujrati

Transparent glasses in the system 3BaO-3TiO2-B2O3 (BTBO) were fabricated via the conventional melt-quenching technique. The as-quenched samples were confirmed to be glassy by differential thermal analysis (DTA) technique. The thermal…

Materials Science · Physics 2010-07-15 Rahul Vaish , K. B. R. Varma

According to the Kosterlitz-Thouless-Theory two-dimensional solid films melt by the unbinding of dislocation pairs. A model including quenched random impurities was already studied by Nelson [Phys. Rev. B 27 (1983) 2902], who predicted a…

Statistical Mechanics · Physics 2007-05-23 Peter Stahl

The Si based TiO2 thin films were prepared via the combination both of Sol-Gel and Spin-Coating method. The films were sintered at 850 degrees Celsius for half an hour, and the resulting films were characterized by X-ray diffraction (XRD)…

Materials Science · Physics 2024-11-08 Xiechao Hu , Chengxi Hu , Tieyan Guo , Zhi Yao , Yang Yang , Ze Qing Guo , Amanda Ekeminiabasi Williams

The single-layer FeSe films grown on SrTiO3 (STO) substrates have attracted much attention because of its record high superconducting critical temperature (Tc). It is usually believed that the composition of the epitaxially grown…

Superconductivity · Physics 2019-04-10 Yong Hu , Yu Xu , Qingyan Wang , Lin Zhao , Shaolong He , Jianwei Huang , Cong Li , Guodong Liu , X. J. Zhou

We have investigated the reduction of the glass transition temperature, $T_g$, for thin supported films of particularly small molecular weight ($M_W$ = 2 kg/mol) polystyrene, and found good agreement with earlier studies on larger…

Soft Condensed Matter · Physics 2009-09-25 Ralf Seemann , Karin Jacobs , Stephan Herminghaus

The growing market for sensors, internet of things, and wearable devices is fueling the development of low-cost energy-harvesting materials and systems. Film based thermoelectric (TE) devices offer the ability to address the energy…

Applied Physics · Physics 2021-09-20 Nagaraj Nandihalli

Anomalous temperature dependence of heat capacity of glassy systems during a cooling-heating cycle has remained an ill-understood problem for a long time. Most of the features observed in the experimental measurement of the heat capacity of…

Soft Condensed Matter · Physics 2007-05-23 Dwaipayan Chakrabarti , Biman Bagchi

It is shown that the oscillation method to study liquid viscosity of [1-3,7-34], which is the basis of oscillation method to study crystallization and melting in multicomponent system, is based on incorrect consideration of one dimensional…

Other Condensed Matter · Physics 2016-04-25 I H Umirzakov

The molecular structure of the wetting layer of ice on Pt(111) is resolved using scanning tunneling microscopy (STM). Two structures observed previously by diffraction techniques are imaged for coverages at or close to completion of the…

Materials Science · Physics 2010-10-26 Sebastian Standop , Alex Redinger , Markus Morgenstern , Thomas Michely , Carsten Busse

A new relaxation mechanism is shown to arise from overdamped two-level systems above a critical temperature $T^*\approx 5$ K, thus yielding an explanation for experimental observations in dielectric glasses in the temperature range between…

Condensed Matter · Physics 2009-10-22 Peter Neu , Alois Würger

We present a detailed study of the magnetic properties of low-temperature-molecular-beam-epitaxy grown Ge:Mn dilute magnetic semiconductor films. We find strong indications for a frozen state of Ge_{1-x}Mn_{x}, with freezing temperatures of…

Materials Science · Physics 2007-05-23 C. Jaeger , C. Bihler , T. Vallaitis , S. T. B. Goennenwein , M. Opel , R. Gross , M. S. Brandt

A recent claim of possible superfluid behaviour of parahydrogen films intercalated within a crystalline matrix of Na atoms is examined. Quantum Monte Carlo simulations at finite temperature yield strong numerical evidence that the system…

Other Condensed Matter · Physics 2016-02-10 Massimo Boninsegni

From muon spin rotation measurements on under- to overdoped Bi-2212 crystals we obtain evidence for a two-stage transition of the vortex matter as a function of temperature. The first transition is well known and related to the…

Superconductivity · Physics 2009-10-31 T. Blasius , Ch. Niedermayer , J. L. Tallon , D. M. Pooke , A. Golnik , C. Bernhard

We performed small-angle X-ray scattering measurements of liquid Te using a synchrotron radiation facility and observed the maximum scattering intensity near 620 K in the supercooled region (melting temperature 723 K). This result is an…

Soft Condensed Matter · Physics 2024-01-18 Yukio Kajihara , Masanori Inui , Kazuhiro Matsuda , Koji Ohara

The morphological evolution and the effect of growth temperature on size, orientation and composition of molecular beam epitaxy grown Ge-Si islands on Si(5 5 12) surfaces have been investigated in the temperature range from room temperature…

Materials Science · Physics 2012-12-06 J. K. Dash , A. Rath , R. R. Juluri , P. V. Satyam

Bi$_2$Se$_3$ is a widely studied 3D topological insulator having potential applications in optics, electronics, and spintronics. When the thickness of these films decrease to less than approximately 6 nm, the top and bottom surface states…

Materials Science · Physics 2024-06-19 Saadia Nasir , Walter J. Smith , Thomas E. Beechem , Stephanie Law

Inherent properties of superconducting Bi2Sr2CaCu2O8+x films, such as the high superconducting transition temperature Tc, efficient Josephson coupling between neighboring CuO layers, and fast quasiparticle relaxation dynamics, make them a…

In contrast to three-dimensional (3D) crystals that melt via a first-order transition, two-dimensional (2D) crystals can exhibit various melting scenarios under different temperatures, pressures, and particle interactions, particularly when…

Materials Science · Physics 2024-10-16 Peng Hua , Yilong Han

In this work, a unified numerical model is used to determine the melting thresholds and to investigate early stages of melting of several crystalline semiconductors (Si, Ge, GaAs, CdTe and InP) irradiated by nanosecond laser pulses. A…

Materials Science · Physics 2024-12-17 J. Beranek , A. V. Bulgakov , N. M. Bulgakova