X-ray study of the crystal structure of La_(1-x)Ba_xMnO_3

V. S. Gaviko; N. G. Bebenin; Ya. M. Mukovskii

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X-ray study of the crystal structure of La_(1-x)Ba_xMnO_3

机译：La_（1-x）Ba_xMnO_3晶体结构的X射线研究

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The x-ray study of the crystal structure of La_(1-x)Ba_xMnO_3 (0.14≤x≤0.25) single crystal manganites has been performed at temperatures from 80 to 400 K. In all the crystals, the transition from the low-temperature orthorhombic Pnma phase to the high-temperature rhombohedral R3c phase has been observed. In the x =0.20 and 0.25 manganites, the Pnma and R3c phases coexist in the range of 20-30 K width while in the x =0.14 and 0.15 crystals, the mixture of the phases has been found in a range whose width exceeds 150 K. The Pnma-R3c transition heat and the change in the cell volume have been shown to be very small as compared to manganites.

机译：在80至400 K的温度下对La_（1-x）Ba_xMnO_3（0.14≤x≤0.25）单晶锰矿的晶体结构进行了x射线研究。在所有晶体中，都从低温转变已经观察到正交晶系Pnma相到高温菱形R3c相。在x = 0.20和0.25锰矿中，Pnma和R3c相共存于20-30 K宽度范围内，而在x = 0.14和0.15晶体中，发现相的混合物在宽度超过150 K的范围内与锰矿相比，Pnma-R3c的转变热和晶胞体积的变化已显示非常小。

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《Physical review》 |2008年第22期|109-113|共5页
作者
V. S. Gaviko; N. G. Bebenin; Ya. M. Mukovskii;
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正文语种 eng
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structure of specific crystalline solids; manganites;

机译：特定结晶固体的结构;锰矿;

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2. Seeded growth from flux and neutron study of La_(1-x)Ba_xMnO_3 (0.2 < x < 0.5) single crystals [J] . S.N. Barilo, G.L. Bychkov, L.A. Kurnevich, Journal of Crystal Growth . 2000,第1a4期

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X-ray study of the crystal structure of La_(1-x)Ba_xMnO_3

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