Results 41 to 50 of about 4,167 (169)

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

Thermodynamics as a nonequilibrium path integral

, 2010
Thermodynamics is a well developed tool to study systems in equilibrium but no such general framework is available for non-equilibrium processes. Only hope for a quantitative description is to fall back upon the equilibrium language as often done in ...
Akhiezer N I, Barkhausen H, Bertotti G, Bhattacharyya A, Bochkov G N, Bochkov G N, Cohen E G D, Horowitz J, Poulomi Sadhukhan, Somendra M Bhattacharjee   +9 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

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

Optimisation of amplitude distribution of magnetic Barkhausen noise [PDF]

Journal of Electrical Engineering, 2017
Abstract The magnetic Barkhausen noise (MBN) measurement method is a widely used non-destructive evaluation technique used for inspection of ferromagnetic materials. Besides other influences, the excitation yoke lift-off is a significant issue of this method deteriorating the measurement accuracy.
Jozef Pal’a, Vladimír Jančárik
openaire   +1 more source

Barkhausen Noise and Critical Scaling in the Demagnetization Curve

, 2002
The demagnetization curve, or initial magnetization curve, is studied by examining the embedded Barkhausen noise using the non-equilibrium, zero temperature random-field Ising model.
A. Berger, F. Colaiori, J.H. Carpenter, J.P. Sethna, J.P. Sethna, John H. Carpenter, K. Dahmen, Karin A. Dahmen, L. Dante, M.C. Kuntz, O. Perković, O. Perković, P. Bak, P. Cizeau, S. Zapperi, S. Zapperi   +15 more
core   +1 more source

Statistics of Avalanches with Relaxation, and Barkhausen Noise: A Solvable Model

, 2013
We study a generalization of the Alessandro-Beatrice-Bertotti-Montorsi (ABBM) model of a particle in a Brownian force landscape, including retardation effects.
Dobrinevski, Alexander, Doussal, Pierre Le, Wiese, Kay Jörg   +2 more
core   +2 more sources

Correlations of triggering noise in driven magnetic clusters

, 2000
We show that the temporal fluctuations $\Delta H(t)$ of the threshold driving field $H(t)$, which triggers an avalanche in slowly driven disordered ferromagnets with many domains, exhibit long-range correlations in space and time.
Bahiana, Banavar, Bertotti, Bosiljka Tadić, Christensen, Cieplak, Dhar, Geoffroy, Ji, Kardar, Krishnamurthy, Livingston, Maritan, Medina, Meisel, Nowak, Pazsuski, Pazsuski, Perković, Roux, Sabhapandit, Sneppen, Spasojević, Tadić, Tadić, Tadić, Tadić, Tadić, Tang, Urbach, Vives, Vázquez   +31 more
core   +1 more source