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Nickel carbon based multi-layers are a viable route towards future hard X-ray and soft $\gamma$-ray focusing telescopes. Here, we study the Pulsed Laser Deposition growth conditions of such bilayers by Reflective High Energy Electron…

Materials Science · Physics 2018-01-08 Tjeerd R. J. Bollmann

We have studied the effect of thermal annealing on electron dephasing times $\tau_\phi$ in three-dimensional polycrystalline metals. Measurements are performed on as-sputtered and annealed AuPd and Sb thick films, using weak-localization…

Mesoscale and Nanoscale Physics · Physics 2009-05-05 J. J. Lin , Y. L. Zhong , T. J. Li

Thin epitaxial films of Tb metal were grown on a clean W(110) substrate in ultra-high vacuum and studied in-situ by low-energy electron microscopy. Annealed films present magnetic contrast in spin-polarized low-energy electron microscopy.…

Materials Science · Physics 2016-12-01 J. E. Prieto , Gong Chen , A. K. Schmid , J. de la Figuera

Porous silicon, obtained by electrochemical etching, has been used as a substrate for the growth of nanoperforated Nb thin films. The films, deposited by UHV magnetron sputtering on the porous Si substrates, inherited their structure made…

This work reports on temperature-induced out-diffusion and concentration decay of the prominent intrinsic point defect VNi (nickel vacancy) in the wide-gap p-type semiconductor nickel oxide (NiO). VNi can easily be introduced into NiO thin…

Materials Science · Physics 2020-04-08 Robert Karsthof , Arthur Markus Anton , Friedrich Kremer , Marius Grundmann

We have studied the magnetoresistance (MR) and evolution of conductivity with thickness of quench-condensed Bismuth films on substrates of various dielectric constants. Our results indicate a negative intial MR proportional to the square of…

Superconductivity · Physics 2007-05-23 K. Das Gupta , G. Sambandamurthy , V. H. S. Moorthy , N. Chandrasekhar

We report the observation of anomalous Hall effect in Mn$_3$Sn polycrystalline thin films deposited on Pt coated Al$_2$O$_3$ substrate with a large anomalous Hall conductivity of 65($\Omega$cm)$^{-1}$ at 3K. The Hall and magnetic…

Mesoscale and Nanoscale Physics · Physics 2023-07-26 W. AfzaL , Z. Yue , Z. Li , M. Fuhrer , X. Wang

Hot wall technique was used to grow block single crystal films of Bi_2Te_3 and solid solutions of Bi_(0.5)Sb_(1.5)Te_3 on mica (muscovite) substrates. X-ray diffraction studies demonstrated that the crystalline c-axis in the films was…

Materials Science · Physics 2014-12-09 L. N. Lukyanova , Yu. A. Boikov , V A Danilov , O A Usov , M P Volkov , V. A. Kutasov

The NiBi$_{3}$ compound exhibits a compelling interplay between superconductivity and magnetism, further enriched by topological characteristics that make it an exceptional platform for exploring emergent electronic phenomena. Here, we…

Laser ablation of Al-Ni alloys and Al films on Ni substrates has been studied by molecular dynamics simulations (MD). The MD method was combined with a two-temperature model to describe the interaction between the laser beam, the electrons…

Materials Science · Physics 2021-07-13 Dennis-Michael Rapp , Alexander Kiselev , Hans-Rainer-Trebin , Johannes Roth

The recent discovery of ambient-pressure superconductivity with $T_c$ above 40 K in La$_3$Ni$_2$O$_7$ thin films represents a significant advance in the field of nickelate superconductor. Motivated by the experimental reports, here we study…

Superconductivity · Physics 2026-02-19 Yuxun Zhong , Wéi Wú , Dao-Xin Yao

We report a systematic study of thickness-dependent superconductivity and carrier transport properties in exfoliated layered 2H-NbS2. Hall-effect measurements reveal 2H-NbS2 in its normal state to be a p-type metal with hole mobility of 1-3…

We present a comparative study of the (magneto)transport properties, including Hall effect, of bulk, thin film and nanostructured MnSi. In order to set our results in relation to published data we extensively characterize our materials,…

Mesoscale and Nanoscale Physics · Physics 2018-06-13 D. Schroeter , N. Steinki , M. Schilling , A. Fernández Scarioni , P. Krzysteczko , T. Dziomba , H. W. Schumacher , D. Menzel , S. Süllow

Niobium metal occupies nearly 100\% of the volume of a typical 2D transmon device. While the aluminum Josephson junction is of utmost importance, maintaining quantum coherence across the entire device means that pair-breaking in Nb leads,…

Niobium carbide (NbC) is a high-field Type II superconductor with a critical temperature ($T_C$) of 11.1 K, just above that of pure Nb ($T_C = 9$ K). Downsizing NbC to the nanoparticle scale introduces significant alterations in its…

It is well known that external magnetic fields and magnetic moments of impurities both suppress superconductivity. Here, we demonstrate that their combined effect enhances the superconductivity of a few atomic layer thick Pb films grown on…

Superconductivity · Physics 2017-12-20 Masato Niwata , Ryuichi Masutomi , Tohru Okamoto

Thin-film nanocomposites, consisting of silver nanoparticles embedded in a dielectric Teflon\textregistered AF matrix, were synthesized using vapor phase co-deposition. The electrical conductivity of these composites was measured in-situ as…

Materials Science · Physics 2011-06-21 Haoyan Wei , Hergen Eilers

We study experimentally the critical depinning current Ic versus applied magnetic field B in Nb thin films which contain 2D arrays of circular antidots placed on the nodes of quasiperiodic (QP) fivefold Penrose lattices. Close to the…

Superconductivity · Physics 2007-05-23 M. Kemmler , C. Guerlich , A. Sterck , H. Poehler , M. Neuhaus , M. Siegel , R. Kleiner , D. Koelle

Structural, magnetic and magnetotransport properties of (Bi$_{1-x}$Eu$_x$)$_2$Se$_3$ thin films have been studied experimentally as a function of Eu content. The films were synthesized by MBE. It is demonstrated that Eu distribution is not…

The coexistence of multiple types of orders is a common thread in condensed matter physics and unconventional superconductors. The nature of superconducting orders may be unveiled by analyzing local perturbations such as vortices. For thin…