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Raman-active phonons and Nd.sup.3+./sup. crystal field studies of weakly doped Nd.sub.1-x./sub.Sr.sub.x./sub.MnO.sub.3./sub..

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    0022063 - FZÚ 2006 RIV US eng J - Journal Article
    Jandl, S. - Mukhin, A.A. - Ivanov, V.Y. - Nekvasil, Vladimír - Sadowski, M.L.
    Raman-active phonons and Nd3+ crystal field studies of weakly doped Nd1-xSrxMnO3.
    [Ramanovsky aktivní fonony a krystalopolní studium Nd3+ ve slabě dopovaném Nd1-xSrxMnO3.]
    Physical Review. B. Roč. 72, č. 2 (2005), 024423/1-024421/7. ISSN 1098-0121
    R&D Projects: GA ČR(CZ) GA202/03/0552
    Institutional research plan: CEZ:AV0Z1010914
    Keywords : manganites * crystal field interaction * spin Hamiltonian
    Subject RIV: BM - Solid Matter Physics ; Magnetism
    Impact factor: 3.185, year: 2005

    Raman-active phonons as a funstion of temperature and Nd3+ infrared active crystal-field excitations under high magnetic field have been studied in Nd0.975Sr0.025MnO3 and Nd0.9Sr0.1MnO3. While long range antiferromagnetism disappears in Nd0.9Sr0.1MnO3, low energy phonon softening and phase separation in domains develop as a result of doping

    Studovány byly závislosti ramanovsky aktivních fononů na teplotě a krystalopolních excitací Nd3+ v infračervené oblasti na silných magnetických polích ve sloučeninách Nd0.9Sr0.1MnO3. and Nd0.975Sr0.025MnO3. Zánik antiferomagnetického uspořádání v Nd0.9Sr0.1MnO3 je provázen měknutím nízkoenergetických fononů a fázovou separací v doménách
    Permanent Link: http://hdl.handle.net/11104/0110872

     
     
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