Results 81 to 90 of about 264,121 (351)

Cosmic abundances: The impact of stellar duplicity

, 2004
The mass-transfer scenario links chemical peculiarities with stellar duplicity for an increasing number of stellar classes (classical and dwarf barium stars, subgiant and giant CH stars, S stars without technetium, yellow symbiotic stars, WIRRING stars ...
Jorissen, A., Van Eck, S.
core   +1 more source

Barium & related stars and their white-dwarf companions I. Giant stars

, 2019
This paper provides long-period and revised orbits for barium and S stars adding to previously published ones. The sample of barium stars with strong anomalies comprise all such stars present in the Lu et al. catalogue.
Boffin, H. M. J., Escorza, A., Jorissen, A., Karinkuzhi, D., Shetye, S., Van Eck, S., Van Winckel, H.   +6 more
core   +1 more source

Roll‐to‐Roll Mechanical Exfoliation for Large‐Area van der Waals Films with Preserved Crystallographic Alignment

Advanced Functional Materials, EarlyView.
A roll‐to‐roll exfoliation method is demonstrated that preserves the crystallographic alignment of anisotropic 2D materials over large areas, enabling scalable fabrication of directional electronic and optoelectronic devices. Abstract Anisotropic 2D materials such as black phosphorus (BP), GeS or CrSBr, exhibit direction‐dependent optical and ...
Esteban Zamora‐Amo, Francisco Fernandez‐Canizares, Yigit Sozen, Thomas Pucher, Pedro L Alcázar Ruano, Carmen Munuera, Ryo Ishikawa, Naoya Shibata, María Varela, Der‐Yuh Lin, Bing Wu, Jorge Quereda, Zdenek Sofer, Gabriel Sánchez‐Santolino, Andres Castellanos‐Gomez   +14 more
wiley   +1 more source

Investigations of solid chemical barium release systems [PDF]

Barium-copper oxide/canister barium vapor release system for geomagnetospheric ...
Hodder, D. T., Kimball, R. B., Wrinkle, W. W., Jr.   +2 more
core   +1 more source

Spectroscopy of a synthetic trapped ion qubit

, 2017
$^{133}\text{Ba}^+$ has been identified as an attractive ion for quantum information processing due to the unique combination of its spin-1/2 nucleus and visible wavelength electronic transitions. Using a microgram source of radioactive material, we trap
Campbell, Wesley C., Christensen, Justin E., Hucul, David, Hudson, Eric R.   +3 more
core   +2 more sources

Exciton Binding Energy Modulation in 2D Perovskites: A Phenomenological Keldysh Framework

Advanced Functional Materials, EarlyView.
The intrinsic screening effects are successfully decoupled from structural distortion by rigorously designing a series of 2D perovskites. This enabled us to demonstrate how the dielectric environment modulates the quasiparticle bandgap and exciton binding energy.
Kitae Kim, Namhee Kwon, Sang Woo Park, Wonsik Kim, Seunghwan Kim, Eunki Yoon, Aelim Ha, Donggyu Lee, Young Yong Kim, Jong‐Cheol Lee, Sungho Lee, Junghan Lee, Kyu Hyoung Lee, Yeonjin Yi, Ki‐Ha Hong, Soohyung Park   +15 more
wiley   +1 more source

Crystal structure of the BaII-based CoII-containing one-dimensional coordination polymer poly[[aqua{μ4-2,2′-[(4,10-dimethyl-1,4,7,10-tetraazacyclododecane-1,7-diyl)bis(methylidene)]bis(4-oxo-4H-pyran-3-olato)}perchloratocobaltbarium] perchlorate]

Acta Crystallographica Section E: Crystallographic Communications, 2017
The title compound, {[Ba{Co(H-2L1)}(ClO4)(H2O)]ClO4}n, L1 = 4,10-bis[(3-hydroxy-4-pyron-2-yl)methyl]-1,7-dimethyl-1,4,7,10-tetraazacyclododecane, is a one-dimensional coordination polymer.
Paola Paoli, Eleonora Macedi, Patrizia Rossi, Luca Giorgi, Mauro Formica, Vieri Fusi   +5 more
doaj   +1 more source

Understanding and Tuning Mobile Interfaces in Ferroelectric Hf0.5Zr0.5O2 Thin Films in Relation to Microstructure

Advanced Functional Materials, EarlyView.
Ferroelectricity in thin HfO2‐based films offers great possibilities for next‐generation neuromorphic memory devices. There, the response to subcoercive voltage signals is driven by the movement of mobile interfaces and their interaction with crystal defects – a yet rather unexplored aspect, which we shed light on and gain new insights into the complex
Maximilian T. Becker, Yoonsang Park, Kihong Kim, Ji Soo Kim, Nives Strkalj, Atif Jan, Giuliana Di Martino, Benson K. Tsai, Haiyan Wang, Ping Lu, Duk‐Hyun Choe, Judith L. MacManus‐Driscoll   +11 more
wiley   +1 more source

Barium abundance in red giants of NGC 6752. Non-local thermodynamic equilibrium and three-dimensional effects

, 2012
(Abridged) Aims: We study the effects related to departures from non-local thermodynamic equilibrium (NLTE) and homogeneity in the atmospheres of red giant stars in Galactic globular cluster NGC 6752, to assess their influence on the formation of Ba II ...
A. Kučinskas, Andrievsky, Asplund, Behara, Bonifacio, Caffau, Caffau, Carretta, Carretta, Carretta, Carretta, Castelli, Cohen, Collet, Collet, Decressin, D’Ercole, E. Caffau, Freytag, González Hernández, Gratton, Gratton, H.-G. Ludwig, Harris, James, Korotin, Korotin, Kraft, Kupka, Kurucz, Ludwig, Mashonkina, Mashonkina, Mashonkina, Mishenina, Norris, Norris, Otsuki, P. Bonifacio, Pasquini, Piotto, Piotto, Ramírez, Roederer, S. A. Korotin, S. M. Andrievsky, Sbordone, Sbordone, Shen, Short, Sneden, Sneden, Sneden, Sobeck, Suntzeff, T. V. Mishenina, V. Dobrovolskas, Yong   +57 more
core   +2 more sources

High Entropy Wide‐Bandgap Borates with Broadband Luminescence and Large Nonlinear Optical properties

Advanced Functional Materials, EarlyView.
High‐entropy rare‐earth borates exhibit excellent nonlinear optical and broadband luminescence properties arising from multi‐component doping, chemical disorder, increased configurational entropy, and increased lattice and electronic anharmonicity. This formulation enabled us to obtain a large, environmentally stable single crystal with 3X higher laser‐
Saugata Sarker, Yu Wang, Yongwen Sun, Caeli Benyacko, Saeed S.I. Almishal, Tao Zhou, Zhiyu Zhang, Jadupati Nag, Himirkanti Sarkar, Jeffrey Shallenberger, Hemant Yennawar, Yang Yang, Jon‐Paul Maria, Zhiqiang Mao, Venkatraman Gopalan   +14 more
wiley   +1 more source