English
 
User Manual Privacy Policy Disclaimer Contact us
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT

Released

Journal Article

Powder magnetoresistance of Co2Cr0.6Fe0.4Al/ Al2O3 powder compacts

MPS-Authors
There are no MPG-Authors available
Locator
There are no locators available
Fulltext (public)
There are no public fulltexts available
Supplementary Material (public)
There is no public supplementary material available
Citation

Block, T., Wurmehl, S., Felser, C., & Windeln, J. (2006). Powder magnetoresistance of Co2Cr0.6Fe0.4Al/ Al2O3 powder compacts. Applied Physics Letters, 88(20): 202504, pp. 1-3. doi:10.1063/1.2200571.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0018-6723-8
Abstract
We report on the magnetotransport properties of Co2Cr0.6Fe0.4Al mixed with insulating Al2O3. The powder compacts show a maximum magnetoresistance of 88% at a saturation moment of 0.125 T at 295 K. Different explanations for the reversible mechanism will be discussed, such as tunneling between contiguous ferromagnetic grains, particle movement, and magnetostriction. The effect in Co2Cr0.6Fe0.4Al/Al2O3 powder compacts is the largest room temperature magnetoresistance that has been measured until now.