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Related papers: Low-loss Sb$_2$S$_3$ Optical Phase Shifter Enabled…

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In this paper, RF sputtered antimony vanadium oxide (SbVO4) thin films and its characterization are reported. High purity sputtering targets were fabricated by sintering a mixture of Sb2O3 and V2O5 powders. Thin films were deposited by…

Applied Physics · Physics 2019-11-28 Tilak Poudel , Corey Grice , Yanfa Yan , Xunming Deng

Several applications in modern photonics require compact on-chip optical filters with a tailored spectral response. However, achieving sub-nanometric bandwidths and high extinction ratios is particularly challenging, especially in…

Optics · Physics 2021-03-12 Alessandro Prencipe , Mohammad Amin Baghban , Katia Gallo

Degradation of co-evaporated CH3NH3PbI3 thin films was investigated with x-ray photoelectron spectroscopy (XPS) and x-ray diffraction (XRD) as the films were subjected to exposure of oxygen, dry air, ambient, or H2O. The co-evaporated thin…

Materials Science · Physics 2015-06-23 Youzhen Li , Xuemei Xu , Chenggong Wang , Congcong Wang , Fangyan Xie , Yongli Gao

We provide the first observation of weak localization in high carrier density two-dimensional electron gas in AlInN/GaN heterostructures; at low temperatures and low fields the conductivity increases with increasing magnetic field. Weak…

Mesoscale and Nanoscale Physics · Physics 2018-02-14 Leizhi Wang , Ming Yin , Asif Khan , Sakib Muhtadi , Fatima Asif , Eun Sang Choi , Timir Datta

Optical transitions of an Er$_2$O$_3$ film on a Si substrate grown by using a metal-organic chemical vapor deposition technique were investigated in a wide temperature (300 K $\sim$ 5 K) and spectral (500 nm and 850 nm) ranges. Numerous…

Materials Science · Physics 2020-07-15 Halim Choi , Y. H. Shin , Yongmin Kim

High-pressure x-ray absorption spectroscopy was performed at the Ir $L_3$ and $L_2$ absorption edges of Sr$_3$Ir$_2$O$_7$. The branching ratio of white line intensities continuously decreases with pressure, reflecting a reduction in the…

A Raman scattering spectroscopy study is reported through all four phases of a (K0.5Na0.5)NbO3 crystal and ((K0.5Na0.5)1-xLix)NbO3 for x=0.02 and 0.03. The transitions among the ferroelectric phases in the Li-free crystal are homogeneous…

Materials Science · Physics 2009-11-13 H. J. Trodahl , N. Klein , D. Damjanovic , N. Setter , B. Ludbrook , D. Rytz , M. Kuball

Optoelectronics based on metal halide perovskites (MHPs) have shown substantial promise, following more than a decade of research. For prime routes of commercialization such as tandem solar cells, optical modeling is essential for…

Applied Physics · Physics 2023-05-24 Christopher G. Bailey , Giacomo M. Piana , Pavlos G. Lagoudakis

Starting from an ultracold sample of ground-state $^{23}$Na$^{87}$Rb molecules, we investigate the lowest ro-vibrational level of the $b^3\Pi$ state with high resolution laser spectroscopy. This electronic spin-forbidden $X^1\Sigma^+…

Atomic Physics · Physics 2021-11-17 Junyu He , Junyu Lin , Romain Vexiau , Nadia Bouloufa , Olivier Dulieu , Dajun Wang

The photoconductivity spectra of NbS_3 (phase I) crystals are studied. A drop of photoconductivity corresponding to the Peierls gap edge is observed. Reproducible spectral features are found at energies smaller the energy gap value. The…

Strongly Correlated Electrons · Physics 2011-02-23 V. F. Nasretdinova , S. V. Zaitsev-Zotov

Using improved experimentally based $X{}^1\Sigma^+$ and $a{}^3\Sigma^+$ molecular potentials of NaRb, we apply the variable phase method to compute new data for low energy scattering of $^{23}$Na atoms by $^{85}$Rb atoms and $^{87}$Rb…

Atomic Physics · Physics 2009-05-11 Henni Ouerdane , Michael J. Jamieson

We have measured the low-field magnetoresistances (MRs) of a series of Sn-doped indium oxide thick films in the temperature $T$ range 4--35 K. The electron dephasing rate $1/\tau_{\varphi}$ as a function of $T$ for each film was extracted…

Mesoscale and Nanoscale Physics · Physics 2013-09-10 Yu-Jie Zhang , Zhi-Qing Li , Juhn-Jong Lin

Heteroepitaxial growth of BaSnO$_3$ (BSO) and Ba$_{1-x}$La$_x$SnO$_3$ (x = 7 %) (LBSO) thin films on different perovskite single crystal (SrTiO$_3$ (001) and SmScO$_3$ (110)) substrates has been achieved by Pulsed Laser Deposition (PLD)…

Understanding the water oxidation mechanism in Photosystem II (PSII) stimulates the design of biomimetic artificial systems that can convert solar energy into hydrogen fuel efficiently. The Sr2+ substituted PSII is active but slower than…

Materials Science · Physics 2021-05-27 Muhamed Amin , Divya Kaur , M. R. Gunner , Gary Brudvig

The results of the analysis of the pi^0 pi^0 scattering amplitudes obtained with pi^- P charge exchange reaction, pi^- P --> pi^0 pi^0 n, data at 9 GeV/c are presented. The pi^0 pi^0 scattering amplitudes show clear f_0(1370) and f_2(1270)…

High Energy Physics - Phenomenology · Physics 2009-10-31 Kunio Takamatsu

We extend the quark Born diagram formalism for hadron-hadron scattering to processes with valence $q\bar q$ annihilation, specifically $I=0$ and $I=1$ $\pi\pi$ and $I=1/2$ $K\pi$ elastic scattering. This involves the $s$-channel hybrid…

High Energy Physics - Phenomenology · Physics 2009-09-25 Z. Li , M. Guidry , T. Barnes , E. S. Swanson

Using low energy Time-of-Flight Scattering and Recoil Spectroscopy (TOF-SARS) and Mass Spectroscopy of Recoiled Ions (MSRI) we analyze the surface structure of an atomically smooth BaBiO$_3$ film grown by molecular beam epitaxy. We…

Other Condensed Matter · Physics 2009-11-13 A. Gozar , G. Logvenov , V. Y. Butko , I. Bozovic

Spin orbit coupling provides a mechanism to lock the momentum of electron to its spin degree, recent years was revealed to be essential in arousing many novel physical behaviors. SrIrO3 is a typical metallic member of the strong spin orbit…

Materials Science · Physics 2018-08-10 Lunyong Zhang , Bin Pang , Y. B. Chen , Yanfeng Chen

Contrary to previous studies that identified the ground state crystal structure of the entire R_3Co series (R is a rare earth) as orthorhombic Pnma, we show that Y_3Co undergoes a structural phase transition at T_t=160K. Single crystal…

Materials Science · Physics 2013-07-18 A. Podlesnyak , G. Ehlers , H. Cao , M. Matsuda , M. Frontzek , O. Zaharko , V. A. Kazantsev , A. F. Gubkin , N. V. Baranov

Organic electro-optic materials have demonstrated promising performance in developing electro-optic phase shifters. Their integration with other silicon photonic processes, nanofabrication complexities, and durability remains to be…