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Magnetic Behaviour of Tmal2 at Low Temperatures

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Loevenhaupt, M., Horn, S., Scheuer, H., Schäfer, W., & Steglich, F. (1980). Magnetic Behaviour of Tmal2 at Low Temperatures. In G. McCarty, J. J. Rhyne, & H. B. Silber (Eds.), The Rare Earths in Modern Science and Technology (pp. 339-340). Springer US.

Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-BFFB-8
Most of the REAl2 compounds (RE rare earth) are reported to order ferromagnetically /1/ Exceptions are the intermediate valence system YbAl2 /2/, the Kondo system CeAl2 /3/ and EuAl2 /1/, which is the only member of this family containing divalent RE ions. The REAI2 compounds crystallize in the MgCu2 structure, where the RE ions build up a diamond lattice. The point symmetry of these sites is cubic. In the case of TmAl2, the (2J+1) = 13 fold degeneracy of the Tm3+ is partially lifted by the crystal field, leaving a s triplet as ground state /4/.