Suppression of the ferromagnetic-insulating phase in self-doped La0.94Mn0.98O3 crystals under pressure

V. Markovich; E. Rozenberg; G. Gorodetsky; M. Greenblatt; W. H. McCarroll

doi:10.1103/physrevb.63.054423

Suppression of the ferromagnetic-insulating phase in self-doped La_0.94Mn_0.98O₃ crystals under pressure

V. Markovich, E. Rozenberg, G. Gorodetsky, M. Greenblatt, W. H. McCarroll

Department of Physics

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

The effect of hydrostatic pressure P on the magnetic and transport properties of self-doped La_0.94Mn_0.98O₃ crystals has been investigated at pressures up to 1 GPa and in the temperature range 15<T<300 K. It was found that the applied pressure enhances the double-exchange coupling, increases the magnetization, and lowers the ferromagnetic-insulator transition temperature. The results obtained here for the self-doped crystals are compared with those observed for lightly doped La_1-xSr_xMnO₃. It is shown that similar mechanisms of ferromagnetic clustering and percolative polarons may account also for the magnetic and transport properties of the self-doped manganites.

Original language	English
Article number	054423
Pages (from-to)	544231-544234
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	63
Issue number	5
DOIs	https://doi.org/10.1103/physrevb.63.054423
State	Published - 1 Jan 2001

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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abstract = "The effect of hydrostatic pressure P on the magnetic and transport properties of self-doped La0.94Mn0.98O3 crystals has been investigated at pressures up to 1 GPa and in the temperature range 15<T<300 K. It was found that the applied pressure enhances the double-exchange coupling, increases the magnetization, and lowers the ferromagnetic-insulator transition temperature. The results obtained here for the self-doped crystals are compared with those observed for lightly doped La1-xSrxMnO3. It is shown that similar mechanisms of ferromagnetic clustering and percolative polarons may account also for the magnetic and transport properties of the self-doped manganites.",

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AU - Markovich, V.

AU - Rozenberg, E.

AU - Gorodetsky, G.

AU - Greenblatt, M.

AU - McCarroll, W. H.

PY - 2001/1/1

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AB - The effect of hydrostatic pressure P on the magnetic and transport properties of self-doped La0.94Mn0.98O3 crystals has been investigated at pressures up to 1 GPa and in the temperature range 15<T<300 K. It was found that the applied pressure enhances the double-exchange coupling, increases the magnetization, and lowers the ferromagnetic-insulator transition temperature. The results obtained here for the self-doped crystals are compared with those observed for lightly doped La1-xSrxMnO3. It is shown that similar mechanisms of ferromagnetic clustering and percolative polarons may account also for the magnetic and transport properties of the self-doped manganites.

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Suppression of the ferromagnetic-insulating phase in self-doped La_0.94Mn_0.98O₃ crystals under pressure

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