Results 81 to 90 of about 62,131 (245)

Crackling Noise in Fractional Percolation -- Randomly distributed discontinuous jumps in explosive percolation

, 2013
Crackling noise is a common feature in many systems that are pushed slowly, the most familiar instance of which is the sound made by a sheet of paper when crumpled. In percolation and regular aggregation clusters of any size merge until a giant component
Nagler, Jan, Rahbari, S. H. Ebrahimnazhad, Schroeder, Malte   +2 more
core   +1 more source

Micromagnetometry of two-dimensional ferromagnets [PDF]

, 2019
The study of atomically thin ferromagnetic crystals has led to the discovery of unusual magnetic behaviour and provided insight into the magnetic properties of bulk materials.
Berdyugin, A. I., Birkbeck, J., Edgar, J. H., Geim, A. K., Gorbachev, R. V., Grigorieva, I. V., Haigh, S. J., Hopkinson, D. G., Kim, M., Knolle, J., Kuang, W., Kumaravadivel, P., Liu, S., McClarty, P. A., Novoselov, K. S., Shalom, M. Ben, Xu, S. G.   +16 more
core   +2 more sources

Highly Efficient Spin Transport in a Paramagnetic Insulator at Room Temperature

Advanced Physics Research, Volume 3, Issue 2, February 2024.
Efficient transmission of magnon‐mediated spin current is a crucial requirement for the development of futural spintronic devices with lower energy dissipation. The efficient spin transport in a paramagnetic insulator is demonstrated at room temperature and under a very weak magnetic field.
Zhaozhao Zhu, He Bai, Zhuolin Li, Yang Gao, Jintao Ke, Guansong Li, Linzhu Bi, Tao Zhu, Jian‐Wang Cai, Ying Zhang   +9 more
wiley   +1 more source

Barkhausen-type noise in the resistance of antiferromagnetic Cr thin films

, 2012
We present an experimental study of the changes generated on the electrical resistance $R(T)$ of epitaxial Cr thin films by the transformation of quantized spin density wave domains as the temperature is changed. A characteristic resistance noise appears
Balseiro, C. A., Kaul, E. E., Osquiguil, E., Tosi, L.   +3 more
core   +1 more source

Restoration and Transformation: The Response of Shocked and Oxidized Magnetite to Temperature

Journal of Geophysical Research: Solid Earth, Volume 129, Issue 2, February 2024.
Abstract Large impact craters on Earth are associated with prominent magnetic anomalies, residing in magnetite of the shocked target rocks and impactites. Shock experiments on magnetite suggest that up to 90% of magnetic susceptibility is lost at pressures >5 GPa, but can be partially restored by post‐shock thermal annealing.
Bruno Daniel Leite Mendes, Agnes Kontny
wiley   +1 more source

Nonuniversal scaling behavior of Barkhausen noise

, 1996
We simulate Barkhausen avalanches on fractal clusters in a two-dimensional diluted Ising ferromagnet with an effective Gaussian random field. We vary the concentration of defect sites $c$ and find a scaling region for moderate disorder, where the ...
B. Alessandro, B. Tadić, B. Tadić, Bosiljka Tadić, C. Beatrice, C. M. Coram, Dj. Spasojević, E. Vives, G. Bertotti, G. Grinstein, J. Imry, J. Kushauer, J. P. Sethna, J. S. Urbach, J. V. Andersen, K. Dahmen, K. P. O'Brien, L. B. Sipahi, L. P. Kadanoff, L. V. Meisel, O. Geoffroy, O. Perković, P. Bak, P. J. Cote, V. De Rubeis   +24 more
core   +1 more source

A Key Contribution for Concrete Durability: Harnessing Force‐Magnetic Coupling for Stress State Detection in Reinforced Concrete Beams

Structural Control and Health Monitoring, Volume 2024, Issue 1, 2024.
Over the past 20 years, more than 200 major bridge‐collapsed accidents have occurred during their service life. The durability of reinforced concrete (RC) beams is a serious threat to the safety performance of the structures. To accurately grasp the service performance of RC beams, a four‐point bending loading experiment was conducted on RC rectangular
Yujie Zhang, Hong Zhang, Kai Tong, Ya Gong, Yinghao Qu, Jianting Zhou, jian zhang   +6 more
wiley   +1 more source

Finite driving rates in interface models of Barkhausen noise

, 2001
We consider a single-interface model for the description of Barkhausen noise in soft ferromagnetic materials. Previously, the model had been used only in the adiabatic regime of infinitely slow field ramping. We introduce finite driving rates and analyze
B. Alessandro, B. Alessandro, B. Tadić, B. Tadić, B. Tadić, B. Tadić, G. Bertotti, G. Durin, G. Durin, H. Barkhausen, H. Leschhorn, H.J. Jensen, J.S. Urbach, M. Bahiana, M. Bahiana, M.C. Kuntz, O. Perković, O. Perković, P. Cizeau, S. L. A. de Queiroz, S. Zapperi   +20 more
core   +1 more source

Universal Pulse Shape Scaling Function and Exponents: A Critical Test for Avalanche Models applied to Barkhausen Noise [PDF]

, 2001
In order to test if the universal aspects of Barkhausen noise in magnetic materials can be predicted from recent variants of the non-equilibrium zero temperature Random Field Ising Model (RFIM), we perform a quantitative study of the universal scaling ...
A. H. Wooters, Amit P. Mehta, Andrea C. Mills, B. Alessandro, B. Gutenberg, D. S. Fisher, Djordje Spasojević, G. Durin, G. Durin, G. Grinstein, H. Ji, J. Ortín, J. P. Sethna, J. P. Sethna, J. P. Sethna, J. S. Urbach, J. Villain, James P. Sethna, Karin A. Dahmen, M. P. Lilly, Matthew C. Kuntz, Matthew C. Kuntz, O. Narayan, Olga Perković, Olga Perković, S. Field, S. Zapperi, W. Wu   +27 more
core   +1 more source

Analysis of Surface Roughness Influence in Non-Destructive Magnetic Measurements Applied to Reactor Pressure Vessel Steels

Applied Sciences, 2020
The influence of surface roughness on magnetic measurements of Reactor Pressure Vessel Steels was investigated by applying two types of magnetic, non-destructive measurement on nuclear reactor pressure vessel steel samples: magnetic adaptive testing (MAT)
Gábor Vértesy, Antal Gasparics, James M. Griffin, Jino Mathew, Michael E. Fitzpatrick, Inge Uytdenhouwen   +5 more
doaj   +1 more source