Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
SIZE POWDERS; MAGNETOABSORPTION; SUPERCONDUCTORS; MAGNETORESISTANCE; LA0.7SR0.3MNO3; ABSORPTION; RESONANCE; Physics, Applied
Abstract
A sharp microwave response centered at zero magnetic field was observed in manganese- and iron-doped Na2O-CaO-MgO-SiO2 glasses with phase opposite to the normal Mn+2 and Fe+3 paramagnetic signals. The response can be described as magneto-induced microwave conductivity in the dielectric glass that derives from spin-dependent charge migration within the first coordination sphere of the paramagnetic ion. In contrast to the spin-polarized tunneling in ferromagnets between different valence states of metals, the observed effect is due to spin-dependent tunneling that occurs in the vicinity of manganese or iron in diluted paramagnetic systems.
Journal Title
Applied Physics Letters
Volume
76
Issue/Number
6
Publication Date
1-1-2000
Document Type
Article
DOI Link
Language
English
First Page
751
Last Page
753
WOS Identifier
ISSN
0003-6951
Recommended Citation
Rakhimov, R. R.; Ries, H. R.; Jones, D. E.; Glebov, L. B.; and Glebova, L. N., "Microwave response near zero magnetic field in transition-metal-doped silicate glasses" (2000). Faculty Bibliography 2000s. 2756.
https://stars.library.ucf.edu/facultybib2000/2756
Comments
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