Results 41 to 50 of about 10,149 (276)

Analytical Modeling of Demagnetization Effects on Magnetic Flux Leakage Signals in Ferromagnetic Pipelines

Magnetochemistry
Magnetic flux leakage (MFL) testing is a widely used non-destructive method for detecting defects in ferromagnetic pipelines. However, demagnetizing fields in ferromagnetic materials can distort MFL signals, reducing detection accuracy.
Jiawen Zhang, Nan Liu, Zheng Lian, Guangwen Sun, Bin Liu, Lijian Yang   +5 more
doaj   +1 more source

Analytical and computational study of magnetization switching in kinetic Ising systems with demagnetizing fields

, 1995
An important aspect of real ferromagnetic particles is the demagnetizing field resulting from magnetostatic dipole-dipole interaction, which causes large particles to break up into domains.
A. B. Bortz, A. B. MacIsaac, A. Hucht, A. Lyberatos, A. Milchev, A. N. Kolmogorov, B. Berg, B. Kaplan, C. C. A. Günther, C. C. A. Günther, C. Domb, C. Kittel, C. N. Yang, C. P. Bean, C. Rottman, C. Salling, D. H. Tarling, D. L. Mills, E. F. Kneller, E. Kneller, E. Köster, E. Stoll, H. Furukawa, H. L. Richards, H. L. Richards, H. L. Richards, H. M. Duiker, H. Orihara, H. Tomita, H.-B. Braun, H.-B. Braun, H.-B. Braun, H.-B. Braun, Howard L. Richards, I. Booth, I. M. Lifshitz, I. S. Jacobs, J. A. N. Filipe, J. Lee, J. S. Langer, J. S. Langer, J. S. Langer, K. Binder, K. Binder, K. Leung, K. Sekimoto, K.-O. Ng, L. Néel, L. Onsager, L. S. Schulman, L. S. Schulman, M. A. Novotny, M. A. Novotny, M. Avrami, M. Avrami, M. Avrami, M. Lederman, M. Lederman, M. Lederman, N. J. Günther, N. Metropolis, P. A. Martin, P. A. Rikvold, P. A. Rikvold, P. C. Hohenberg, P. D. Beale, Per Arne Rikvold, R. Carey, R. Czech, R. D. Kirby, R. J. Glauber, R. K. P. Zia, R. M. H. New, S. K. Chan, S. M. Allen, S. Mo/rup, S. T. Chui, T. Chang, U. Nowak, W. A. Johnson, W. F. Brown, W. F. Brown, Y. Martin   +82 more
core   +1 more source

Shapes and textures of ferromagnetic liquid droplets [PDF]

, 2001
Theoretical calculations, computer simulations and experiments indicate the possible existence of a ferromagnetic liquid state. Should such a state exist, demagnetization effects would force a nontrivial magnetization texture governed by the shape of the
Banerjee, S., Widom, M.
core   +1 more source

Correlation between magnetic interactions and domain structure in A1 FePt ferromagnetic thin films [PDF]

, 2014
We have investigated the relationship between the domain structure and the magnetic interactions in a series of FePt ferromagnetic thin films of varying thickness.
A. Butera, Chikazumi S., E. Sallica Leva, Getzlaff M., Hubert A., J. Gómez, J. Milano, Kooy C., M. Vásquez Mansilla, N. Álvarez, R. C. Valente   +10 more
core   +2 more sources

Magnetic Force Microscopy Signatures of Higher‐Order Skyrmions and Antiskyrmions

Advanced Functional Materials, EarlyView.
Magnetic force microscopy operated under vacuum conditions enables the qualitative identification of higher‐order skyrmions and antiskyrmions in Co/Ni multilayers at room temperature. Distinct stray‐field contrast signatures arise from vertical Bloch lines and complex domain‐wall configurations.
Sabri Koraltan, Joe Sunny, Tamer Karaman, Reshma Peremadathil‐Pradeep, Emily Darwin, Felix Büttner, Dieter Suess, Hans Josef Hug, Manfred Albrecht   +8 more
wiley   +1 more source

Electron spin resonance study of the demagnetization fields of the ferromagnetic and paramagnetic films [PDF]

Magnetic Resonance in Solids, 2015
The results of the electron spin resonance study of the La1-xCaxMnO3 manganite and the diphenyl-picrylhydrazyl thin films for the magnetic field parallel and perpendicular to plane of the films are presented.
I.I. Gimazov, Yu.I. Talanov
doaj  

Classical limit of demagnetization in a field gradient [PDF]

Physical Review B, 2003
We calculate the rate of decrease of the expectation value of the transverse component of spin for spin-1/2 particles in a magnetic field with a spatial gradient, to determine the conditions under which a previous classical description is valid. A density matrix treatment is required for two reasons. The first arises because the particles initially are
openaire   +2 more sources

Self‐Cooling Molecular Spin Qudits

Advanced Materials, EarlyView.
A material made of [GdEr] molecular dimers can encode a qudit and perform as a magnetic refrigerant. Microwave resonant pulses coherently manipulate its 16 spin states, while direct demagnetization measurements cool the material and a device down to temperatures below 1 K.
Elías Palacios, David Aguilà, David Gracia, Diamatoula Maniaki, Leoní A. Barrios, Alessandro Chiesa, Jesús I. Martínez, Valentin Novikov, Olivier Roubeau, Stefano Carretta, Marco Evangelisti, Guillem Aromí, Fernando Luis   +12 more
wiley   +1 more source

Magnetic anisotropy instability due to magnetic field annealing in Ta/MgO/NiFe/MgO/Ta anisotropic magnetoresistive sensors

AIP Advances, 2023
Ta/MgO/NiFe/MgO/Ta anisotropic magnetoresistive thin film sensors, which can be used for magnetic scales, were prepared. To improve the magnetoresistance ratio of the sensors, these sensors were vacuum-annealed with the magnetic field applied, and then ...
Xin Shan, Yiya Huang, Hongyu Ren, Ronggui Zhu, Hui Zhang, Chun Feng, Guanghua Yu   +6 more
doaj   +1 more source

Calculation of Three-dimensional Energy Product for Isotropic Nd₂Fe₁₄B Magnet

Applied Sciences, 2022
A conventional energy product calculated by the product of the B-field and the H-field is not sufficient for representing the performance of a magnet because it considers the homogeneous and only the uniaxial magnetic properties of the magnet.
Namkyu Kim, Hee-Sung Han, Chul-Jin Choi, Ki-Suk Lee, Jihoon Park   +4 more
doaj   +1 more source