Results 21 to 30 of about 3,229 (109)

Low-energy, planar magnetic defects in BaFe2As2: nanotwins, twins, antiphase and domain boundaries [PDF]

, 2013
In BaFe2As2, structural and magnetic planar defects begin to proliferate below the structural phase transition, affecting descriptions of magnetism and superconductivity.
Alam, Aftab, Johnson, Duane, Johnson, Duane, Khan, Suffian   +3 more
core   +5 more sources

Direct measurement of antiferromagnetic domain fluctuations

, 2007
Measurements of magnetic noise emanating from ferromagnets due to domain motion were first carried out nearly 100 years ago and have underpinned much science and technology. Antiferromagnets, which carry no net external magnetic dipole moment, yet have a
A Yeh, A. R. Sandy, B Barbara, CG Shull, E Fawcett, E. D. Isaacs, EE Fullerton, EM Chudnovsky, EW Fenton, EW Fenton, G. Aeppli, H Barkhausen, H Fukuyama, H Fukuyama, H. C. Kim, J Brooke, J. M. Logan, JP Sethna, L Cipelletti, L Cipelletti, M Lee, M Sutton, M Sutton, M. Sprung, MB Weissman, O. G. Shpyrko, P Falus, P. Zschack, PB Littlewood, PG Evans, R Bandyopadhyay, R. Jaramillo, RP Michel, RP Michel, S Vitale, S. Narayanan, SG Lemay, SM Hayden, T. F. Rosenbaum, W Wernsdorfer, Yejun Feng   +40 more
core   +1 more source

Non-Close-Packed Three-Dimensional Quasicrystals

, 2017
Quasicrystals are frequently encountered in condensed matter. They are important candidates for equilibrium phases from the atomic scale to the nanoscale. Here, we investigate the computational self-assembly of four quasicrystals in a single model system
Damasceno, Pablo F., Engel, Michael, Glotzer, Sharon C.   +2 more
core   +1 more source

Programmable Dimensional Lithography with Digital Micromirror Devices for Multifunctional Microarchitectures

Advanced Materials Technologies, EarlyView.
This review explores recent advances in digital micromirror device (DMD)‐based lithography, focusing on its programmable light modulation, multi‐material compatibility, and dimensional patterning strategies. It highlights innovations from optical system design to materials integration and multifunctional applications, positioning DMD lithography as a ...
Yubin Lee, Byungcheon Yoo, Chaeyeong Ryu, Jongwon Oh, Dahye Baek, Jiseok Lee   +5 more
wiley   +1 more source

Advances and Challenges in Computational Research of Micro and Nano Flows [PDF]

, 2014
This paper was presented at the 4th Micro and Nano Flows Conference (MNF2014), which was held at University College, London, UK. The conference was organised by Brunel University and supported by the Italian Union of Thermofluiddynamics, IPEM, the ...
4th Micro and Nano Flows Conference (MNF2014), Asproulis, N, Drikakis, D, Frank, M   +3 more
core  

Renormalization group approach to multiscale modelling in materials science

, 2005
Dendritic growth, and the formation of material microstructure in general, necessarily involves a wide range of length scales from the atomic up to sample dimensions. The phase field approach of Langer, enhanced by optimal asymptotic methods and adaptive
A. C. Newell, A. Karma, Badrinarayan P. Athreya, C. Bowman, C. Denniston, D. D. Vvedensky, E. B. Tadmor, G. H. Gunaratne, J. A. Warren, J. A. Warren, J. B. Collins, J. Jeong, J. Knap, J. Q. Broughton, J. Swift, Jonathan A. Dantzig, K. Nozaki, K. R. Elder, K. R. Elder, L. Chen, M. C. Cross, M. C. Cross, N. Goldenfeld, N. Provatas, Nigel Goldenfeld, R. E. Miller, R. E. Rudd, R. Graham, S. A. Brazovskii, S. Curtarolo, S. Sasa, T. Passot, V. B. Shenoy, Y. Shiwa   +33 more
core   +2 more sources

Stress‐Induced Melting Controlled Failure Mechanisms of Methane Hydrate

Advanced Science, EarlyView.
We study methane hydrate via nanoindentation and nuclear magnetic resonance (NMR), finding its regional melting and mechanical properties, challenging existing views on hydrogen‐bonded crystals. Abstract Methane hydrate, a kind of nonstoichiometric crystalline, attracted worldwide attentions as a promising substitute energy. Its Dissociation is thought
Yanlong Li, Yuan Zhou, Zhengcai Zhang, Minhui Qi, Yajuan Zhang, Yujing Jiang, Yunkai Ji, Qingguo Meng, Yongfu Sun, Nengyou Wu   +9 more
wiley   +1 more source

Imaging high-speed friction at the nanometer scale [PDF]

, 2016
Friction is a complicated phenomenon involving nonlinear dynamics at different length and time scales[1, 2]. The microscopic origin of friction is poorly understood, due in part to a lack of methods for measuring the force on a nanometer-scale asperity ...
Borgani, Riccardo, de Wijn, Astrid S., Forchheimer, Daniel, Haviland, David B., Thorén, Per-Anders   +4 more
core   +2 more sources

3D Polymeric Nanonetworks: From Self‐Assembly to Advanced Fabrication

Macromolecular Materials and Engineering, EarlyView.
This review provides the first systematic cross‐method comparison of fabrication techniques for 3D polymeric nanonetworks. It evaluates five key strategies—block copolymer self‐assembly, hyper‐crosslinking, template‐assisted methods, 3D printing, and nanolithography—across critical metrics including resolution, throughput, scalability, and material ...
Carlos G. Cobos, Xiang Yan, Marisol Martín‐González   +2 more
wiley   +1 more source

Elucidating the Hierarchical Architecture of Polymer Spherulites via 4D Scanning Transmission Electron Microscopy

Small, EarlyView.
By using low‐dose four‐dimensional (4D) scanning transmission electron microscopy (STEM) on the multiscale hierarchical structures of poly(ε‐caprolactone) and polyethylene (PE) spherulite films, the preferential orientation and growth direction of lamellar crystals, chain tilt within single lamella, as well as the twisted lamella structure with spiral ...
Changsheng Chen, Min Chen, Xuyun Guo, Chen Yang, Jiahe Liu, Dangyuan Lei, Hanying Li, Ye Zhu   +7 more
wiley   +1 more source