Chin. Phys. Lett.  2007, Vol. 24 Issue (7): 2052-2055    DOI:
Original Articles |
Reduced Magneto-Resistivity of a Rare-Earth Crystalline and the Degeneracy Removals of Its Crystal-Field Levels
LIU Zhao-Sen
Faculty of Mathematics and Physics, Nanjing University of Information Science and Technology, Nanjing 210044
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LIU Zhao-Sen 2007 Chin. Phys. Lett. 24 2052-2055
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Abstract A theoretical approach is generalized and employed to calculate the magneto-resistivity of a rare-earth crystalline (CeAl2) with degenerate ground crystal-field (CF) level in the presence of external fields. The calculated results show that when a magnetic field is applied in the c-direction, the magneto-resistivity may be reduced by more than 90% in certain cases in comparison with the pure CF contribution at the same temperature, demonstrating the strong effects of the degeneracy removals of the CF levels on the magnetic resistivity.
Keywords: 72.10.-d      75.47.-m      75.10.Dg     
Received: 02 April 2007      Published: 25 June 2007
PACS:  72.10.-d (Theory of electronic transport; scattering mechanisms)  
  75.47.-m (Magnetotransport phenomena; materials for magnetotransport)  
  75.10.Dg (Crystal-field theory and spin Hamiltonians)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2007/V24/I7/02052
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LIU Zhao-Sen
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