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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
- 1.0343167 - FZÚ 2011 RIV GB eng J - Journal Article
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. E-ISSN 1477-2299
R&D Projects: GA AV ČR IAA100100632
Grant - others:SRDA(SK) VEGA 2/7184/27; ERDF EU(XE) ITMS26220120005
Institutional research plan: CEZ:AV0Z10100521
Keywords : manganites * magnetization * magnetic phase transition * hydrostatic pressure * chemical pressure
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 0.995, year: 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.
Permanent Link: http://hdl.handle.net/11104/0185703
Number of the records: 1