Results 31 to 40 of about 4,167 (169)

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

Low‐Noise, Unbiased Ferromagnetic‐Resonance‐Driven Thin‐Film Integrated Giant Magnetoimpedance Sensors

Advanced Materials Technologies, Volume 10, Issue 14, July 22, 2025.
Utilizing a novel (Ni81Fe19/Ti)4/Cu/(Ni81Fe19/Ti)4 thin‐film multilayer with low coercive field, low damping and a superior GMI ratio, a compact, low‐noise unbiased FMR‐driven integrated GMI sensor with a superior magnetic noise performance of ≈100 pT/√Hz is first demonstrated, owing to reduced phase noise from well‐defined aligned magnetic domains and
Bin Luo, Xianfeng Liang, Huaihao Chen, Cai Müller, Paul Raschdorf, Phillip Durdaut, Michael Höft, Jeffrey McCord, Nian‐Xiang Sun   +8 more
wiley   +1 more source

Domain size effects in Barkhausen noise

, 1998
The possible existence of self-organized criticality in Barkhausen noise is investigated theoretically through a single interface model, and experimentally from measurements in amorphous magnetostrictive ribbon Metglas 2605TCA under stress.
B. Alessandro, Belita Koiller, H. Barkhausen, H. J. S. Feder, H. Ji, J. C. Denardin, J. Urbach, K. P. O’Brien, K. Yamamoto, M. Bahiana, O. Narayan, O. Perković, P. Cizeau, R. L. Sommer, S. L. A. de Queiroz   +14 more
core   +1 more source

Barkhausen Noise‐ and Eddy Current‐Based Measurements for Online Detection of Deformation‐Induced Martensite During Flow Forming of Metastable Austenitic Steel AISI 304L

Engineering Reports, Volume 7, Issue 1, January 2025.
Barkhausen noise (BN)‐ and eddy currents (EC)‐based sensor systems were tested to detect deformation‐induced martensite during flow forming of austenitic steel 304L. The results with EC have advantages over those with BN due to the good correlation with reference α′‐martensite measurements and the low influence of factors such as roughness.
Julian Rozo Vasquez, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting, Werner Homberg, Ansgar Trächtler, Frank Walther   +6 more
wiley   +1 more source

A Magnetoelastic Twist on Magnetic Noise: The Connection with Intrinsic Nonlinearities

Advanced Functional Materials, Volume 34, Issue 9, February 26, 2024.
Magnetoelastic nonlinearity significantly limits the performance of devices that use ferromagnetic films as sensitive elements. By introducing a comprehensive theory of magnetic noise in sensor systems, previously unrecognized noise sources linked to magnetoelasticity are revealed.
Elizaveta Spetzler, Benjamin Spetzler, Jeffrey McCord   +2 more
wiley   +1 more source

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

Cobalt‐Based Metallic Glass Microfibers for Flexible Electromagnetic Shielding and Soft Magnetic Properties

Advanced Electronic Materials, Volume 10, Issue 2, February 2024.
A novel method is used to fabricate flexible Co66Fe4Mo2Si16B12 metallic‐glass microfibers for electronics, boasting a hardness of 11.31±0.60 GPa and an elastic modulus of 110.54±11.24 GPa. Their EMI shielding exhibits clear anisotropy with a factor of 5 and up to 25‐fold increased attenuation in the Ku band.
Elham Sharifikolouei, Tomasz Kozieł, Piotr Bała, Antoni Żywczak, Łukasz Gondek, Reza Rashidi, Michela Fracasso, Roberto Gerbaldo, Gianluca Ghigo, Laura Gozzelino, Daniele Torsello   +10 more
wiley   +1 more source

Barkhausen noise in the Random Field Ising Magnet Nd$_2$Fe$_{14}$B [PDF]

, 2015
With sintered needles aligned and a magnetic field applied transverse to its easy axis, the rare-earth ferromagnet Nd$_2$Fe$_{14}$B becomes a room-temperature realization of the Random Field Ising Model.
Dahmen, K. A., Rosenbaum, T. F., Silevitch, D. M., Xu, J.   +3 more
core   +2 more sources

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

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