Awschalom, D. D. and Smyth, J. F. and Grinstein, G. and Divincenzo, D. P. and Loss, D.. (1992) Macroscopic quantum tunneling in magnetic proteins. Physical review letters, Vol. 68, H. 20. pp. 3092-3095.
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Official URL: http://edoc.unibas.ch/dok/A5254802
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Abstract
We report low-temperature measurements of the frequency-dependent magnetic noise and magnetic susceptibility of nanometer-scale antiferromagnetic horse-spleen ferritin particles, using an integrated dc SQUID microsusceptometer. A sharply defined resonance near 1 MHz develops below T approximately 0.2 K. The behavior of this resonance as a function of temperature, applied magnetic field, and particle concentration indicates that it results from macroscopic quantum tunneling of the Neel vector of the antiferromagnets.
| Faculties and Departments: | 05 Faculty of Science > Departement Physik > Physik > Theoretische Physik Mesoscopics (Loss) |
|---|---|
| UniBasel Contributors: | Loss, Daniel |
| Item Type: | Article, refereed |
| Article Subtype: | Research Article |
| Publisher: | American Physical Society |
| ISSN: | 0031-9007 |
| Note: | Publication type according to Uni Basel Research Database: Journal article |
| Identification Number: | |
| Last Modified: | 22 Mar 2012 14:26 |
| Deposited On: | 22 Mar 2012 13:52 |
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