Study of magnetic, structural and magnetocaloric properties of La.sub.0.6./sub.Pr.sub.0.4./sub.Mn.sub.2./sub.Si.sub.2./sub. under high pressures and magnetic field

0473985 - FZÚ 2018 RIV NL eng J - Článek v odborném periodiku
Kaštil, Jiří - Arnold, Zdeněk - Isnard, O. - Skourski, Y. - Kamarád, Jiří - Itié, J.P.
Study of magnetic, structural and magnetocaloric properties of La_0.6Pr_0.4Mn₂Si₂ under high pressures and magnetic field.
Journal of Magnetism and Magnetic Materials. Roč. 424, Feb (2017), s. 416-420. ISSN 0304-8853. E-ISSN 1873-4766
Grant CEP: GA ČR GA15-03777S
Institucionální podpora: RVO:68378271
Klíčová slova: magnetization * compressibility * magnetocaloric effect * high pressure
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 3.046, rok: 2017

The structural study up to 10 GPa confirmed the existence of critical Mn-Mn distance 0.2883 nm for the ferromagnetic-antiferromagnetic transition at room temperature. The huge pressure shift of the transition temperature (+230 K/GPa) leads to a suppression of the ferromagnetic phase under pressure. The direct magnetocaloric measurements showed moderate values of the adiabatic temperature change connected with the magnetic transition and confirmed the first order character of the transition.
Trvalý link: http://hdl.handle.net/11104/0271117