Magnetization reversal in patterned double-vortex structures
The magnetization reversal process for micron and submicron disk-shaped dots is controlled by successive nucleation, displacement, and annihilation of a magnetic vortex. Here the reversal process for ...
The magnetization reversal process for micron and submicron disk-shaped dots is controlled by successive nucleation, displacement, and annihilation of a magnetic vortex. Here the reversal process for ...
Local structure and destruction of electron pathway effects on Curie temperature of B-site-substituted lanthanum manganites
A study of B-site-substituted La0.7Ca0.3Mn1–xScxO3 lanthanum manganites is presented. Substitution of Sc3+ ion for Mn3+ ion damages a path of motion of itinerant eg electrons, thus causing a weak...
A study of B-site-substituted La0.7Ca0.3Mn1–xScxO3 lanthanum manganites is presented. Substitution of Sc3+ ion for Mn3+ ion damages a path of motion of itinerant eg electrons, thus causing a weak...
Neutron-diffraction study of magnetization avalanches in Pr0.50Ca0.50Mn1–xNixO3
J. Appl. Phys. 97, 10H701 (2005); doi:10.1063/1.1846251
Published 11 May 2005
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The magnetization avalanches under field have been investigated at low temperature in Pr0.50Ca0.50Mn1–xNixO3 (x=0.05). In zero field, a 5% of Ni at the Mn site provokes the coexistence of three types of magnetic/structural mesoscopic domains at low temperature: ferromagnetic metallic (majority phase), pseudo-CE and CE-type (minority phase). The ultrasharp steps observed in the low-temperature isothermal magnetization and resistivity curves were investigated by neutron powder diffraction in magnetic fields up to 5 T. At 3 T an abrupt growth of ferromagnetic microclusters occurs at the expenses of the two types of antiferromagnetic orbital-ordered domains (CE and pseudo-CE regions).
©2005 American Institute of Physics
| History: | Presented 8 November 2004; published 11 May 2005 |
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BibSonomy
KEYWORDS and PACS
praseodymium compounds,
calcium compounds,
manganese compounds,
ferromagnetic materials,
antiferromagnetic materials,
magnetic domains,
magnetoresistance,
neutron diffraction,
exchange interactions (electron)
- 75.50.Dd
Nonmetallic ferromagnetic materials - 75.50.Ee
Antiferromagnetics - 75.60.Ej
Magnetization curves, hysteresis, Barkhausen and related effects - 75.60.Ch
Magnetic domain walls and domain structure - 75.30.Et
Exchange and superexchange interactions in magnetically ordered materials - 72.20.My
Galvanomagnetic and other magnetotransport effects (semiconductors/insulators) - YEAR: 2005
RELATED DATABASES
PUBLICATION DATA
0021-8979 (print)
1089-7550 (online)
AIP
REFERENCES (9)
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