Results 71 to 80 of about 20,616 (293)

Forming and confining of dipolar excitons by quantizing magnetic fields [PDF]

Physical Review B, 2011
We show that a magnetic field perpendicular to an AlGaAs/GaAs coupled quantum well efficiently traps dipolar excitons and leads to the stabilization of the excitonic formation and confinement in the illumination area. Hereby, the density of dipolar excitons is remarkably enhanced up to $\sim 10^{11} cm^{-2}$.
Kowalik-Seidl, K., Vögele, X. P., Seilmeier, F., Schuh, D., Wegscheider, W., Holleitner, A. W., Kotthaus, J. P.   +6 more
openaire   +2 more sources

Modulus‐Switchable Miniature Robots for Biomedical Applications: A Review

Advanced Robotics Research, EarlyView.
Materials, robot designs, proof‐of‐concept functions, and biomedical applications of modulus‐switchable miniature robots. Miniature soft robots have shown great potential in biomedical applications due to their excellent controllability and suitable mechanical properties in biological environments.
Chunyun Wei, Yibin Wang, Jiangfan Yu
wiley   +1 more source

Asymmetrically Coordinated Dual‐Atom Manganese Contrast Agents Enabling High‐Efficiency T1 Enhanced MRI for Precise Tumor Visualization

Advanced Science, EarlyView.
A novel dual‐atom manganese MRI contrast agent (Mn‐BN) with a unique asymmetric coordination geometry provided a promising platform for sensitive and specific tumor imaging. In mice model, Mn‐BN nanoparticles precisely functioned as both a primary tumor‐specific enhancer in subcutaneous models and a hepatocyte‐specific agent in liver metastases models ...
Ding Yang, Qing‐Yang Li, Jianli Liang, Gengyou Li, Nan Sun, Qianqian Song, Haitao Zhu, Xiaoting Li, Zechuan Li, Jiankai Dong, Weisheng Guo, Yafang Xiao, Chun‐Sing Lee, Ying‐Shi Sun   +13 more
wiley   +1 more source

Simulations of equilibrium magnetic and magnetoelastic properties of non-conducting rare-earth compounds [PDF]

Magnetic Resonance in Solids, 2016
The Hamiltonian of the magnetic subsystem containing rare-earth ions involves energies of the localized 4f-electrons in free ions, energies of interactions of the 4f-electrons with the static crystal field in the perfect crystal lattice as well as in the
Nuzhina D.S., Romanova I.V.
doaj  

Biotemplating arrays of nanomagnets using the biomineralisation protein Mms6 [PDF]

, 2012
High quality magnetic nanoparticles (MNPs) are used in applications such as electronic data storage. Current methods for synthesising the consistent MNPs required use high temperatures, harsh chemicals and bespoke equipment.
Galloway, Johanna Marie
core  

Introduction to the special section on Fundamental and Frontier Research in Rock Magnetism [PDF]

, 2006
Many of the papers in this special section were first presented in the session “Rock Magnetism: Fundamentals and Frontiers” at the 2005 Fall AGU meeting.
Williams, W.; id_orcid, Jackson, M. J., Smirnov, A.   +2 more
core   +1 more source

Enhanced Stability in Zero‐Excess Li‐Metal Batteries via Prelithiated Carbon Nanofiber Interlayers

Advanced Science, EarlyView.
Carbon nanofibers carbonized at 700°C show Li metal deposition predominantly on the side facing the Cu current collector. During delithiation, Li agglomerates remain as inactive lithium on the fiber surface. This behavior can be changed by a modified n‐Buli prelithiation without a washing step, suppressing dead Li formation and therefore enabling ...
Sandro Schöner, Marius Ast, Vera Michaela Barysch, Rebecca Erkes, Jule Meier‐Merziger, Pengfei Cao, Joachim Mayer, Josef Granwehr, Fabian Jeschull, Hermann Tempel, Shicheng Yu, Rüdiger‐A. Eichel   +11 more
wiley   +1 more source

Anisotropic NMR as a Crucial Tool for Differentiation of Epimers With High Conformational Flexibility

Angewandte Chemie, EarlyView.
Epimer discrimination remains challenging due to subtle NMR differences. Here, we propose a methodology based on 13C‐RCSA and RDC anisotropic parameters, enabling the assignment of two flexible tetraprenyltoluquinol epimers (1a and 1b) with remote stereoclusters.
Juan Carlos C. Fuentes‐Monteverde, Abel M. Forero, Nilamoni Nath, Antonio Hernández Daranas, Carlos Jiménez, Jaime Rodríguez, Christian Griesinger   +6 more
wiley   +2 more sources

Controlling collective rotational patterns of magnetic rotors

Nature Communications, 2019
A challenge of magnetically-actuated devices is to obtain different behaviours from each component under the same driving field. Here the authors tune the dipolar interactions between rotors to obtain different rotational behaviours when actuated by a ...
Daiki Matsunaga, Joshua K. Hamilton, Fanlong Meng, Nick Bukin, Elizabeth L. Martin, Feodor Y. Ogrin, Julia M. Yeomans, Ramin Golestanian   +7 more
doaj   +1 more source

Distribuição de barreiras de energia de nanopartículas magnéticas em campo externo [PDF]

, 2014
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências Físicas e Matemáticas, Programa de Pós-Graduação em Física, Florianópolis, 2014.Neste trabalho estudamos o comportamento da magnetização de um sistema de nanopartículas ...
Salvador, Marcelo
core