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Bi$_2$Sr$_{2-x}$La$_x$CuO$_{6+\delta}$ (0$\leq x \leq$1.00) single crystals with high-quality have been grown successfully using the travelling-solvent floating-zone technique. The patterns of X-ray diffraction suggest high crystalline…

Superconductivity · Physics 2009-11-13 Huiqian Luo , Peng Cheng , Lei Fang , Hai-Hu Wen

Polycrystalline Nd$_{1-x}$Eu$_{x}$NiO$_3$ ($0 \leq x \leq 0.5$) compounds were synthesized in order to investigate the character of the metal-insulator (MI) phase transition in this series. Samples were prepared through the sol-gel route…

Strongly Correlated Electrons · Physics 2007-05-23 M. T. Escote , V. B. Barbeta , R. F. Jardim , J. Campo

The ambient-temperature high-pressure behaviour of (La0.2Nd0.2Sm0.2Gd0.2Yb0.2)2Zr2O7 zirconate (HEZ) nanopowders with three different average particle sizes (~25nm, ~45 nm and ~ 68nm) were studied using synchrotron X-ray diffraction…

Materials Science · Physics 2025-06-03 Yogendar Singh , Xinghua Su , Vivek Kumar , H. K. Poswal , K. K. Pandey , Pawan Kumar Kulriya

The crystal structure of the layered, perovskite-related LaTiO_3.41 (La_5Ti_5O_{17+\delta}) has been studied by synchrotron powder x-ray diffraction under hydrostatic pressure up to 27 GPa (T = 295 K). The ambient-pressure phase was found…

Strongly Correlated Electrons · Physics 2007-05-23 I. Loa , K. Syassen , X. Wang , F. Lichtenberg , M. Hanfland , C. A. Kuntscher

We present a comprehensive first--principles study of the structural stability and superconducting behavior of Li$_2$PdH$_2$ under high pressure. Using random structure searching and phonon calculations, we identify a pressure--induced…

Superconductivity · Physics 2025-08-08 Zahra Alizadeh , Yue-Wen Fang , Ion Errea , M. R. Mohammadizadeh

Superconductivity was discovered in a Ni0:05TaS2 single crystal. A Ni0:05TaS2 single crystal was successfully grown via the NaCl/KCl flux method. The obtained lattice constant c of Ni0:05TaS2 is 1.1999 nm, which is significantly smaller…

Superconductivity · Physics 2015-05-13 X. D. Zhu , Y. P. Sun , S. B. Zhang , H. C. Lei , X. B. Zhu , Lijun Li , Z. R. Yang , W. H. Song , J. M. Dai

We report a high-pressure single-crystal synchrotron x-ray diffraction on a LaAlO3 single crystal. The transition from rhombohedral to cubic at 14.8 GPa is confirmed by the loss of the superstructure reflections, whose intensity shows a…

Materials Science · Physics 2011-09-12 Mael Guennou , Pierre Bouvier , Gaston Garbarino , Jens Kreisel

The compounds Sr$_{3}$Cr$_{2}$O$_{8}$ and Ba$_{3}$Cr$_{2}$O$_{8}$ are insulating dimerized antiferromagnets with Cr$^{5+}$ magnetic ions. These spin-$\frac{1}{2}$ ions form hexagonal bilayers with a strong intradimer antiferromagnetic…

Disordered Systems and Neural Networks · Physics 2017-11-15 Alsu Gazizulina , Diana Lucia Quintero-Castro , Andreas Schilling

The recently discovered bilayer Ruddlesden-Popper nickelate La$_3$Ni$_2$O$_7$ exhibits superconductivity with a remarkable transition temperature $T_c\approx 80 $ K under applied pressures above 14.0 GPa. This discovery of new family of…

Superconductivity · Physics 2026-04-03 Yucong Yin , Jun Zhan , Boyang Liu , Xinloong Han

We explore both experimental and theoretical aspects of the superconducting properties in the distinctive layered caged compound, Ba$_{3}$Ir$_{4}$Ge$_{16}$. Our approach integrates muon spin rotation and relaxation ($\mu$SR) measurements…

We report a comprehensive study of electronic band structure for single-layer (SL) and bilayer (BL) RP-nickelates probed by in-situ HP X-ray absorption near edge spectroscopy (XANES). At ambient pressure (AP), the energy splitting delta_E…

We report crystal growth and below 2.5K superconductivity of Nb0.25Bi2Se3. These crystals are grown by self flux method. The X-ray diffraction (XRD) pattern of as grown crystal flake shows (00l) plane (c-orientation) growth. The Rietveld…

Superconductivity · Physics 2019-11-20 M. M. Sharma , P. Rani , Lina Sang , X. L. Wang , V. P. S. Awana

To investigate the origin of the enhanced Tc ({\approx} 110 K) of the trilayer cuprate superconductor Bi2Sr2Ca2Cu3O10+{\delta} (Bi-2223), its underdoped single crystals are a critical requirement. Here, we demonstrate the first successful…

The recent claim of superconductivity above room temperature in Pb$_{10-x}$Cu$_x$(PO$_4$)$_6$O with 0.9 < $x$ < 1 (referred to as LK-99) has sparked considerable interest. To minimize the influence of structural defects and impurity phases…

Superconductivity · Physics 2023-10-27 P. Puphal , M. Y. P. Akbar , M. Hepting , E. Goering , M. Isobe , A. A. Nugroho , B. Keimer

We report on the growth of Y2Ti2O7 single crystals by optical floating zone technique. X-ray diffraction and Raman spectroscopy studies confirm the structural quality of the crystal. The UV-Vis optical studies reveal that the grown crystals…

Materials Science · Physics 2020-06-15 M. Suganya , K. Ganesan , P. Vijayakumar , Amirdha Sher Gill , R. Ramaseshan , S. Ganesamoorthy

The goal of this work is to report a systematic and balanced review of the progress made in recent years on the high-pressure behavior of iodates, a group of materials with multiple technological applications and peculiar behaviors under…

Materials Science · Physics 2023-03-29 Akun Liang , Robin Turnbull , Daniel Errandonea

Low concentration hydrogen gas detection is of paramount importance both in space applications as well as medical applications. It is also critically important for safe handling of hydrogen below the explosive limit. Here, we report a novel…

Chemical vapor deposition (CVD) of two-dimensional (2D) tungsten dichalcogenide crystals requires steady flow of tungsten source in the vapor phase. This often requires high temperature and low pressure due to the high sublimation point of…

Monolayer transition metal dichalcogenides have attracted great attentions for potential applications in valleytronics. However, the valley polarization degree is usually not high because of the intervalley scattering. Here, we demonstrate…

Materials Science · Physics 2023-02-23 Jianchen Dang , Mingwei Yang , Xin Xie , Zhen Yang , Danjie Dai , Zhanchun Zuo , Can Wang , Kuijuan Jin , Xiulai Xu

We report on the single crystal growth of Eu(Pd$_{1-x}$Au$_x$)$_2$Si$_2$, $0< x\leq 0.2$, from a levitating Eu-rich melt using the Czochralski method. Our structural analysis of the samples confirms the ThCr$_2$Si$_2$-type structure as well…