|
|||||
|
|
Low temperature thermodynamical properties of ErCu2Si2 |
|
| Authors: | S. Baran A. Szytu?a A. Pikul P. Piekarz S. Gerischer |
| Affiliation: | a M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland b Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, Mickiewicza 30, 30-059 Kraków, Poland c Institute of Low Temperature and Structure Research, Polish Academy of Sciences, PO BOX 1410, 50-950 Wroc?aw, Poland d H. Niewodniczański Institute of Nuclear Physics, Polish Academy of Sciences, Radzikowskiego 152, 31-342 Kraków, Poland e Helmholtz-Zentrum Berlin, Glienicker Str. 100, 14-109 Berlin, Germany |
| Abstract: | ErCu2Si2 crystallises in the tetragonal ThCr2Si2-type crystal structure. In this paper results of magnetometric, electrical transport, specific heat as well as neutron diffraction are reported. Results of electrical resistivity and specific heat measurements performed at low temperature yield existence of magnetic ordering roughly at 1.3 K. These results are in concert with neutron diffraction measurements, which reveal simple antiferromagnetic ordering between 0.47 and 1.00 K. At temperatures ranging from 1.00 up to 1.50 K an additional incommensurate magnetic structure was observed. The propagation vector k=(0;0;0.074) was proposed to describe magnetic reflections within the amplitude modulated magnetic structure. Basing on specific heat studies the crystal field levels splitting scheme and magnetic entropy were calculated. |
| Keywords: | 61.12.&minus q 75.25.+z 75.50.Ee |
| 本文献已被 ScienceDirect 等数据库收录！ | |