Seeded growth from flux and neutron study of La1−xBaxMnO3 (0.2&lt;x&lt;0.5) single crystals

Barilo, S. N.; Бычков, Г. Л.; Kurnevich, L.A.; Shiryaev, S. V.; Kurochkin, L. A.; Lynn, J. W.; Vasiliu-Doloc, L.

doi:10.1016/s0022-0248(99)00767-8

Cited by 22 publications

(26 citation statements)

References 14 publications

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“…A fit of the reported data [31] for La 0.68 Ba 0.32 MnO 3 (T C = 336 K) indicates a non-zero fourth-neighbour coupling with 2S J 4 = 1.59 meV (see table 1). Chatterji et al [32] taken into account (see …”

Section: Zone-boundary Magnon Softeningmentioning

confidence: 94%

Magnons in ferromagnetic metallic manganites

Zhang¹,

Ye²,

Sha³

et al. 2007

J. Phys.: Condens. Matter

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Ferromagnetic (FM) manganites, a group of likely half-metallic oxides, are of special interest not only because they are a testing ground for the classical double-exchange interaction mechanism for the 'colossal' magnetoresistance, but also because they exhibit an extraordinary arena of emergent phenomena. These emergent phenomena are related to the complexity associated with strong interplay between charge, spin, orbital, and lattice. In this review, we focus on the use of inelastic neutron scattering to study the spin dynamics, mainly the magnon excitations in this class of FM metallic materials. In particular, we discuss the unusual magnon softening and damping near the Brillouin zone boundary in relatively narrow-band compounds with strong Jahn-Teller lattice distortion and charge-orbital correlations. The anomalous behaviours of magnons in these compounds indicate the likelihood of cooperative excitations involving spin and lattice as well as orbital degrees of freedom.

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Section: Zone-boundary Magnon Softeningmentioning

confidence: 94%

Magnons in ferromagnetic metallic manganites

Zhang¹,

Ye²,

Sha³

et al. 2007

J. Phys.: Condens. Matter

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“…The manganites seem to possess a magnetic phase diagram at normal pressure and La 0.67 Ba 0.33 MnO 3 and La 0.7 Ba 0.3 MnO 3 displays paramagnetic insulating behavior above T C ; a ferromagnetic metal below this temperature and a magnetoresistance peak in the vicinity of T C [14][15][16]. On the other hand, for the ferromagnetic La 1−x Ba x MnO 3 (0.15 ≤ x ≤ 0.25) single crystal manganites have ferromagnetic and paramagnetic states and optical spectra are satisfactorily understood in terms of transitions between energy levels of the MnO 6 complex or between levels of two neighboring Mn ions.…”

Section: Introductionmentioning

confidence: 99%

Structure and electrical resistivity of La1−xBaxMnO3 (0.25≤x≤0.35) perovskites

Mansuri

Varshney

2012

Journal of Alloys and Compounds

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“…Single crystals of Ba-doped lanthanum manganites were obtained by crystallization from flux [4] and by floating zone (FZ) melting [5]. The flux grown crystals demonstrated good homogeneity and a small mosaic spread.…”

Section: Introductionmentioning

confidence: 99%