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In the present work, HfO2 thin film (100nm) has been deposited by sputtering technique and annealed at various temperatures ranging from 400 to 1000\degree (in step of 200 \degree) in O2 ambient for 10 min. The samples have been…

Materials Science · Physics 2016-05-05 Shilpi Pandey , Prateek Kothari , Sunil Kumar Sharma , Seema Verma , K. J. Rangra

We experimentally demonstrate efficient third harmonic generation from an indium tin oxide (ITO) nanofilm (lambda/42 thick) on a glass substrate for a pump wavelength of 1.4 um. A conversion efficiency of 3.3x10^-6 is achieved by exploiting…

Activation of shallow acceptor state has been observed in ion irradiated and subsequently air annealed polycrystalline ZnO material. Low temperature photoluminescence (PL) spectrum of the sample exhibits clear signature of acceptor bound…

Materials Science · Physics 2016-04-28 S. Pal , D. Jana , T. Rakshit , S. S. Singha , K. Asokan , S. Dutta , A. Sarkar

In this work we present a detailed Raman scattering investigation of zinc oxide and aluminum-doped zinc oxide (AZO) films characterized by a variety of nanoscale structure and morphology and synthesized by pulsed laser deposition (PLD)…

Materials Science · Physics 2017-10-12 V. Russo , M. Ghidelli , P. Gondoni , C. S. Casari , A. Li Bassi

We have investigated the nonlinear microwave properties of electron-beam coevaporated YBaCuO films on MgO, using stripline resonators at 2.3 GHz and temperatures 1.7-80 K. The oxygen content of the films ranged from strongly underdoped to…

Superconductivity · Physics 2007-05-23 M. A. Hein , R. G. Humphreys , P. J. Hirst , S. H. Park , D. E. Oates

We have investigated the nonlinear surface impedance and two-tone intermodulation distortion of nine epitaxial YBa2Cu3O7-d films on MgO substrates, using stripline resonators, at frequencies f=2.3-11.2GHz and temperatures T=1.7K-Tc. The…

Superconductivity · Physics 2009-11-07 M. A. Hein , D. E. Oates , P. J. Hirst , R. G. Humphreys , A. V. Velichko

The optical properties of lead zirconate titanate (PZT) thin films deposited on ZnO were studied by m-lines spectroscopy. In order to retrieve the refractive index and the thickness of both layers from the m-lines spectra, we develop a…

Materials Science · Physics 2015-10-26 T Schneider , D Leduc , J. Cardin , C Lupi , N Barreau , H Gundel

The IR optical absorption (0.1-1.5 eV) in the $La_{0.7}Ca_{0.3}MnO_3$ films on LAO substrate exhibits the drastic temperature evolution of the spectral weight evidencing the insulator to metal transition. Single crystal films were found to…

Strongly Correlated Electrons · Physics 2009-11-07 A. S. Moskvin , E. V. Zenkov , Yu. P. Sukhorukov , E. V. Mostovshchikova , N. N. Loshkareva , A. R. Kaul , O. Yu. Gorbenko

B and N K-edge x-ray absorption spectroscopy measurements have been performed on three BN thin films grown on Si substrates using ion-assisted pulsed laser deposition. Comparison of the films' spectra to those of several single-phase BN…

Condensed Matter · Physics 2007-05-23 A. Chaiken , L. J. Terminello , J. Wong , G. L. Doll , T. Sato

This paper reports on the deposition of amorphous and crystalline thin films of Ga2O3 by reactive pulsed direct current magnetron sputtering from a liquid gallium target onto fused (f-) quartz and c plane (c-) sapphire substrates, where the…

Epitaxial CaMnO3 films grown with 2.3% tensile strain on (001)-oriented LaAlO3 substrates are found to be incipiently ferroelectric below 25 K. Optical second harmonic generation (SHG) was used for the detection of the incipient…

Materials Science · Physics 2015-06-05 T. Günter , E. Bousquet , A. David , Ph. Boullay , Ph. Ghosez , W. Prellier , M. Fiebig

Layered 2D graphene oxide (GO) films are integrated with microring resonators (MRRs) to experimentally demonstrate enhanced nonlinear optics in the form of four wave mixing (FWM). Both uniformly coated and patterned GO films are integrated…

As grown ZnO:Si nanocomposites of different compositional ratios were fabricated by thermal evaporation techniques. These films were subjected to post deposition annealing under high vacuum at a temperature of $\rm 250C^o$ for 90min. The…

Materials Science · Physics 2016-01-20 Shabnam , Chhaya Ravi Kant , P. Arun

We investigated structural, magnetic and electrical properties of sputter deposited Mn-Fe-Ga compounds. The crystallinity of the Mn-Fe-Ga thin films was confirmed using x-ray diffraction. X-ray reflection and atomic force microscopy…

Materials Science · Physics 2016-08-02 Alessia Niesen , Christian Sterwerf , Manuel Glas , Jan-Michael Schmalhorst , Günter Reiss

In this work, the authors fabricated Cu2O porous nanostructured films (PNFs) on glass slide substrates by the newly developed positive bias deposition approach in a balanced magnetron sputtering (MS) system. It was found that the surface…

Materials Science · Physics 2019-05-22 Yiqi Zhu , Ji Ma , Lei Zhou , Yang Liu , Meiping Jiang , Xianfang Zhu , Jiangbin Su

Nickel nitride (Ni-N) thin film samples were deposited using reactive magnetron sputtering process utilizing different partial flow of N2 (RN2). They were characterized using x-ray reflectivity (XRR), x-ray diffraction (XRD) and x-ray…

Materials Science · Physics 2020-04-23 Nidhi Pandey , Mukul Gupta , Jochen Stahn

Orthorhombic-structured II-IV nitrides provide a promising opportunity to expand the material platform while maintaining compatibility with the wurtzite crystal structure of the traditional III-nitride material system. Among them,…

Neodymium doped Na2O-ZnO-TeO2 (NZT) glasses were prepared by the conventional melt quenching technique. DTA and TG were used to confirmation of glass preparation through the glass transition temperature at 447{\deg}C for the glass system.…

Materials Science · Physics 2021-06-09 J. N. Mirdda , S. Mukhopadhyay , K. R. Sahu , M. N. Goswami

NiO thin films with various strains were grown on SrTiO3 (STO) and MgO substrates using a pulsed laser deposition technique. The films were characterized using an x-ray diffractometer, atomic force microscopy, and infrared reflectance…

Strongly Correlated Electrons · Physics 2020-06-30 Alireza Kashir , Veronica Goian , Daseob Yoon , Byeong-Gwan Cho , Yoon Hee Jeong , Gil-Ho Lee , Stanislav Kamba

Nonlinear optical microscopy such as in the optical second-harmonic generation (SHG) modality has become a popular tool today for probing materials in the physical and biological sciences. While imaging and spectroscopy are widely used in…