A new approach for improving exchange-spring magnets. Jiang, J S, Pearson, J E, Liu, Z Y, Kabius, B, Trasobares, S, Miller, D J, Bader, S D, Lee, D R, Haskel, D, Srajer, G, & Liu, J P Journal of Applied Physics, Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United States, 2005.
A new approach for improving exchange-spring magnets [link]Paper  abstract   bibtex   
It is demonstrated here that an already ideal exchange-spring magnet can be further improved by intermixing the interface. This is counter-intuitive to the general expectation that optimal exchange-spring magnet behavior requires an ideal, atomically coherent soft-hard interface. Epitaxial Sm-Co/Fe thin-film exchange-spring bilayers are thermally processed, by annealing or high-temperature deposition, to induce interdiffusion. With increasing processing temperature, the hysteresis loop becomes more single-phase-like, yet the magnetization remains fully reversible. The interface is characterized via synchrotron x-ray scattering and electron microscopy elemental mapping. The magnetization behavior is modeled by assuming a graded interface where the material parameters vary continuously. The simulations produce demagnetization curves similar to experimental observations. © 2005 American Institute of Physics.
@article{Jiang2005,
abstract = {It is demonstrated here that an already ideal exchange-spring magnet can be further improved by intermixing the interface. This is counter-intuitive to the general expectation that optimal exchange-spring magnet behavior requires an ideal, atomically coherent soft-hard interface. Epitaxial Sm-Co/Fe thin-film exchange-spring bilayers are thermally processed, by annealing or high-temperature deposition, to induce interdiffusion. With increasing processing temperature, the hysteresis loop becomes more single-phase-like, yet the magnetization remains fully reversible. The interface is characterized via synchrotron x-ray scattering and electron microscopy elemental mapping. The magnetization behavior is modeled by assuming a graded interface where the material parameters vary continuously. The simulations produce demagnetization curves similar to experimental observations. © 2005 American Institute of Physics.},
address = {Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United States},
annote = {Cited By (since 1996): 34

        
Export Date: 15 January 2013

        
Source: Scopus

        
Art. No.: 10K311

        
CODEN: JAPIA

        
doi: 10.1063/1.1855032

        
Language of Original Document: English

        
Correspondence Address: Materials Science Division, Argonne National Laboratory, Argonne, IL 60439, United States

        
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author = {Jiang, J S and Pearson, J E and Liu, Z Y and Kabius, B and Trasobares, S and Miller, D J and Bader, S D and Lee, D R and Haskel, D and Srajer, G and Liu, J P},
issn = {00218979 (ISSN)},
journal = {Journal of Applied Physics},
keywords = {Computer simulation,Diffusion,Exchange-spring magnets,Interfaces (materials),Intermixing,Magnetic anisotropy,Magnetization,Magnets,Scanning electron microscopy,Spring magnets,Synchrotron radiation,Thin films,X ray scattering},
number = {10},
title = {{A new approach for improving exchange-spring magnets}},
url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-20944450728&partnerID=40&md5=da4d01f422253be2d344db727335a801},
volume = {97},
year = {2005}
}

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