Results 81 to 90 of about 29,739 (303)

In Situ Constructed Magnetic Core‐Shell Hydrogen‐Bonded Organic Framework‐on‐Metal–Organic Framework Structure: an Efficient Catalyst for Peroxymonosulfate Activation

Advanced Functional Materials, EarlyView.
In this work, a magnetic core‐shell catalyst (HOF‐on‐Fe3O4/ZIF‐67) is successfully synthesized, consisting of a metal–organic framework (ZIF‐67) with magnetic Fe3O4 as the core and a porous hydrogen‐bonded organic framework (HOF) as the shell. The catalyst efficiently activated peroxymonosulfate, resulting in rapid and effective removal of water ...
Yingying Du, Chenhui Ding, Chao Deng, Susanta Banerjee, Seema Agarwal   +4 more
wiley   +1 more source

Machine-learning-based automated loading of strontium isotopes into magneto-optical trap

AIP Advances, 2023
We implemented optimization techniques of machine learning (ML) to obtain the mutually exclusive sets of experimental parameters that maximize the number of strontium atoms of different isotopes (88Sr, 86Sr, and 87Sr) in a magneto-optical trap (MOT ...
Korak Biswas, Kushal Patel, S. Sagar Maurya, Pranab Dutta, Umakant D. Rapol   +4 more
doaj   +1 more source

Doppler cooling to the recoil limit using sharp atomic transitions

, 2002
In this paper, we develop an analytical approach to Doppler cooling of atoms by one- or two-photon transitions when the natural width of the excited level is so small that the process leads to a Doppler temperature comparable to the recoil temperature. A
Allegrini, Anderson, Aspect, Bidel, Binnewies, Biraben, Cagnac, Gordon, Greytak, Huber, Hänsch, Jean Claude Garreau, Kasevich, Kasevich, Katori, Katori, Setija, Vogel, Véronique Zehnlé, Wallis, Zehnlé   +20 more
core   +1 more source

Spectroscopic determination of the s-wave scattering lengths of 86Sr and 88Sr [PDF]

, 2005
We report the use of photoassociative spectroscopy to determine the ground state s-wave scattering lengths for the main bosonic isotopes of strontium, 86Sr and 88Sr.
A. D. Saenz, E. Tiesinga, M. Bode, P. G. Mickelson, P. Julienne, P. Pellegrini, R. Côté, S. B. Nagel, T. C. Killian, Y. C. Chen, Y. N. Martinez   +10 more
core   +2 more sources

Analyzing Electronic Excitations and Exciton Binding Energies in Y6 Films

Advanced Functional Materials, EarlyView.
The Y6 molecule is used for increasing the efficiency of organic solar cells. The exciton binding energy is calculated for ensembles of Y6 molecules that are representative of the typically used films. The calculations show that the excitons typically spread out over many molecules.
Sahar Javaid Akram, Sophie Meißner, Stephan Kümmel   +2 more
wiley   +1 more source

Modulating Two‐Photon Absorption in a Pyrene‐Based MOF Series: An In‐Depth Investigation of Structure–Property Relationships

Advanced Functional Materials, EarlyView.
This study investigates H4TBAPy‐based metal–organic frameworks (MOFs) ‐ NU‐1000, NU‐901, SrTBAPy, and BaTBAPy ‐ for multiphoton absorption (MPA) performance. It observes topology‐dependent variations in the 2PA cross‐section, with BaTBAPy exhibiting the highest activity.
Simon N. Deger, Helmy Pacheco Hernandez, Yang Cui, Hongxing Hao, Vanessa Ramm, David C. Mayer, Khai‐Nghi Truong, Roland A. Fischer, Jürgen Hauer, Mariana Kozlowska, Alexander Pöthig   +10 more
wiley   +1 more source

Creation of a tweezer array for cold atoms utilizing a generative neural network

APL Quantum
Optical tweezers have become an essential tool for dynamically manipulating objects, ranging from microspheres or biological molecules to neutral atoms. In this study, we demonstrate the creation of tweezer arrays using a generative neural network, which
Zejian Ren, Xu Yan, Kai Wen, Huijin Chen, Elnur Hajiyev, Chengdong He, Gyu-Boong Jo   +6 more
doaj   +1 more source

Experimental and theoretical (DFT) studies on poly[octa-μ3-acesulfamato-O,O:N,Oʹ;Oʹ,N:O,O-tetraaquatetrabarium(II)] and poly[octa-μ3-acesulfamato-O,O:N,Oʹ;Oʹ,N:O,O-tetraaquatetrastrontium(II)] complexes

Macedonian Journal of Chemistry and Chemical Engineering, 2015
Two new one-dimensional coordination polymers of barium (II) and strontium (II)-acesulfamato complexes such as [Ba(C4H4NO4S)2(H2O)]n (1) and [Sr(C4H4NO4S)2(H2O)]n (2) have been synthesized and their molecular structures were identified by X-ray ...
Hasan İçbudak, Güneş Demirtaş, Necmi Dege   +2 more
doaj   +1 more source

Development of sustainable strontium ferrite graphene nanocomposite for highly effective catalysis and antimicrobial activity

Scientific Reports, 2023
Graphene oxide (GO) has layered structure with carbon atoms that are highly coated with oxygen-containing groups, increasing the interlayer distance while simultaneously making hydrophilic atomic-thick layers.
Suranjana V. Mayani, Sandip P. Bhatt, Vishal J. Mayani, Gaurav Sanghvi   +3 more
doaj   +1 more source

The ground state of the polar alkali-Strontium molecules: potential energy curve and permanent dipole moment

, 2010
In this study, we investigate the structure of the polar alkali-Strontium diatomic molecules as possible candidates for the realization of samples of new species of ultracold polar molecules.
Aymar, Mireille, Dulieu, Olivier, Guérout, Romain   +2 more
core   +1 more source