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fbtwitterlinkedinvimeoflicker grey 14rssslideshare1
Casper, Frederick; Felser, Claudia (2007)
Languages: English
Types: Preprint
Subjects: Condensed Matter - Materials Science
The semiconducting half-Heulser compound DyNiBi shows a negative giant magnetoresistance (GMR) below 200 K. Except for a weak deviation, this magnetoresistance scales roughly with the square of the magnetization in the paramagnetic state, and is related to the metal-insulator transition. At low temperature, a positive magnetoresistance is found, which can be suppressed by high fields. The magnitude of the positive magnetoresistance changes slightly with the amount of impurity phase.
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