Počet záznamů: 1

ressure effect on magnetic properties of La.sub.0.67./sub.Ca.sub.0.33./sub.(Co.sub.x./sub.Mn.sub.1-x./sub.)O.sub.3./sub. ceramics

  1. 1.
    0343167 - FZU-D 2011 RIV GB eng J - Článek v odborném periodiku
    Zentková, M. - Mihalik, M. - Arnold, Zdeněk - Kamarád, Jiří - Gritzner, G.
    ressure effect on magnetic properties of La0.67Ca0.33(CoxMn1-x)O3 ceramics.
    High Pressure Research. Roč. 30, č. 1 (2010), 12-16 ISSN 0895-7959
    Grant CEP: GA AV ČR IAA100100632
    Grant ostatní: SRDA(SK) VEGA 2/7184/27; ERDF EU(XE) ITMS26220120005
    Výzkumný záměr: CEZ:AV0Z10100521
    Klíčová slova: manganites * magnetization * magnetic phase transition * hydrostatic pressure * chemical pressure
    Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
    Impakt faktor: 0.995, rok: 2010

    In this communication, we compare effects of hydrostatic and chemical pressure on the magnetic properties of La0.67Ca0.33(CoxMn1-x)O3 ceramics. For ceramics with x=0.03, the Curie temperature TC increases under hydrostatic pressure with a slope d TC /dp=+23.4 K/GPa. The saturated magnetization μs does not change with applied hydrostatic pressure. Chemical pressure was induced by substitution of Co for Mn. The substitution from x=0.03 to x=0.1 reduces the volume of the elementary cell by about 0.28%, but TC decreases from 203.4 to 167 K. The saturated magnetization μs is not affected by this substitution.
    Trvalý link: http://hdl.handle.net/11104/0185703