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Metamagnetism and giant magnetoresistance of the rare-earth intermetallic compounds R2Ni2Pb (R=Er,Ho,Dy)

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http://pubman.mpdl.mpg.de/cone/persons/resource/persons126772

Mydosh,  J. A.
Max Planck Institute for Chemical Physics of Solids, Max Planck Society;

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Citation

Chinchure, A. D., Sandoval, E. M., & Mydosh, J. A. (2002). Metamagnetism and giant magnetoresistance of the rare-earth intermetallic compounds R2Ni2Pb (R=Er,Ho,Dy). Physical Review B, 66(2): 020409, pp. 020409-020409. doi:10.1103/PhysRevB.66.020409.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0015-312D-4
Abstract
We have measured the magnetization and magnetoresistance for a series of rare-earth (R=Er,Ho,Dy) plumbide intermetallic compounds, R2Ni2Pb. These materials form in an unusual orthorhombic structure with space group Cmmm. After multiple magnetic transitions, the ground state exhibits a steplike series of large-moment metamagnetic transitions in low fields (1-2 T) concomitant with switchinglike properties of the magnetoresistance where sharp changes of up to 30% are found. We relate these properties to the layered magnetic structure of the compound.