Thermal expansion study of magnetic phase transitions in Kondo-lattice systems

Schefzyk, R.; Peschke, M.; Steglich, F.; Winzer, K.; Assmus, W.

doi:10.1007/BF01304458

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Thermal expansion study of magnetic phase transitions in Kondo-lattice systems

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Schefzyk, R., Peschke, M., Steglich, F., Winzer, K., & Assmus, W. (1985). Thermal expansion study of magnetic phase transitions in Kondo-lattice systems. Zeitschrift für Physik B, 60(2-4), 373-378. doi:10.1007/BF01304458.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-CEBE-C

Abstract

High precision measurements of the thermal expansion coefficient, α(T), of the Kondo lattice systems CeAl2 and CeB6 reveal the coexistence of two second-order phase transitions at the Néel temperaturesT N =3.9 K and 2.35 K, respectively. These results are discussed with regard to the complex antiferromagnetic order known from neutron diffraction experiments on both compounds. For CeIn3, a Kondo lattice with simpler magnetic structure, only one discontinuity in α(T) occurs atT N ≃10 K.