Structural and magnetic phase transitions in Pr.sub.0.15./sub.Sr.sub.0.85./sub.MnO.sub.3./sub. at high pressure

0352096 - FZÚ 2011 RIV DE eng J - Článek v odborném periodiku
Kozlenko, D. P. - Dang, N.T. - Jirák, Zdeněk - Kichanov, S.E. - Lukin, E.V. - Savenko, B. N. - Dubrovinsky, L.S. - Lathe, C. - Martin, C.
Structural and magnetic phase transitions in Pr_0.15Sr_0.85MnO₃ at high pressure.
European Physical Journal B. Roč. 77, č. 3 (2010), s. 407-411. ISSN 1434-6028. E-ISSN 1434-6036
Výzkumný záměr: CEZ:AV0Z10100521
Klíčová slova: high pressure * magnetic phase transitions
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 1.575, rok: 2010

The crystal and magnetic structures of Pr0.15Sr0.85MnO3 manganite have been studied by means of powder X-ray and neutron diffraction in the temperature range 10–400 K at high external pressures up to 55 and 4 GPa, respectively. A structural phase transition from cubic to tetragonal phase upon compression was observed, with large positive pressure coefficient of transition temperature dTct/dP = 28(2) K/GPa. The C-type antiferromagnetic (AFM) ground state is formed below TN ≈ 260 K at ambient pressure.
Trvalý link: http://hdl.handle.net/11104/0191685