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Evidence for two magnetic phase transitions in CeAl2: Resolution of high pressure results

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Citation

Schefzyk, R., Lieke, W., & Steglich, F. (1985). Evidence for two magnetic phase transitions in CeAl2: Resolution of high pressure results. Solid State Communications, 54(6), 525-529. doi:10.1016/0038-1098(85)90661-1.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-C2C5-7
Abstract
Zero-pressure thermal-expansion and specific-heat experiments on CeAl2 show that two phase transitions having pressure dependences of the transition temperature, , of opposite sign occur near . Comparison with earlier high-pressure neutron-diffraction results reveals an antiferromagnetic nature of both transitions: The one with tp<0 signals an incommensurate sine wave, which is quenched by lattice defects and leaves behind a simple type-II structure, indicated by the transition with tp>0.