Nanoscale anisotropic structural correlations in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3

V. Kiryukhin, B. G. Kim, Takuro Katsufuji, J. P. Hill, S. W. Cheong

研究成果: Article

19 引用 (Scopus)

抄録

We report x-ray scattering studies of short-range structural correlations and diffuse scattering in Nd0.5Sr0.5MnO3. On cooling, this material undergoes a series of transitions, first from a paramagnetic insulating (PI) to a ferromagnetic metallic (FM) phase, and then to a charge-ordered (CO) insulating state. Highly anisotropic structural correlations were found in both the PI and FM states of this compound. The correlations increase with decreasing temperature, reaching a maximum at the CO transition temperature. Below this temperature, they abruptly collapsed. Single-polaron diffuse scattering was also observed in both the PI and FM states suggesting that substantial local lattice distortions are present in these phases. We argue that our measurements indicate that nanoscale regions exhibiting layered orbital order exist in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3.

元の言語English
記事番号144406
ページ(範囲)1444061-1444065
ページ数5
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
63
発行部数14
出版物ステータスPublished - 2001
外部発表Yes

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Scattering
Gene Conversion
x ray scattering
scattering
Superconducting transition temperature
transition temperature
Cooling
cooling
X rays
orbitals
Temperature
temperature

ASJC Scopus subject areas

  • Condensed Matter Physics

これを引用

Nanoscale anisotropic structural correlations in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3 . / Kiryukhin, V.; Kim, B. G.; Katsufuji, Takuro; Hill, J. P.; Cheong, S. W.

:: Physical Review B - Condensed Matter and Materials Physics, 巻 63, 番号 14, 144406, 2001, p. 1444061-1444065.

研究成果: Article

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T1 - Nanoscale anisotropic structural correlations in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3

AU - Kiryukhin, V.

AU - Kim, B. G.

AU - Katsufuji, Takuro

AU - Hill, J. P.

AU - Cheong, S. W.

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N2 - We report x-ray scattering studies of short-range structural correlations and diffuse scattering in Nd0.5Sr0.5MnO3. On cooling, this material undergoes a series of transitions, first from a paramagnetic insulating (PI) to a ferromagnetic metallic (FM) phase, and then to a charge-ordered (CO) insulating state. Highly anisotropic structural correlations were found in both the PI and FM states of this compound. The correlations increase with decreasing temperature, reaching a maximum at the CO transition temperature. Below this temperature, they abruptly collapsed. Single-polaron diffuse scattering was also observed in both the PI and FM states suggesting that substantial local lattice distortions are present in these phases. We argue that our measurements indicate that nanoscale regions exhibiting layered orbital order exist in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3.

AB - We report x-ray scattering studies of short-range structural correlations and diffuse scattering in Nd0.5Sr0.5MnO3. On cooling, this material undergoes a series of transitions, first from a paramagnetic insulating (PI) to a ferromagnetic metallic (FM) phase, and then to a charge-ordered (CO) insulating state. Highly anisotropic structural correlations were found in both the PI and FM states of this compound. The correlations increase with decreasing temperature, reaching a maximum at the CO transition temperature. Below this temperature, they abruptly collapsed. Single-polaron diffuse scattering was also observed in both the PI and FM states suggesting that substantial local lattice distortions are present in these phases. We argue that our measurements indicate that nanoscale regions exhibiting layered orbital order exist in the paramagnetic and ferromagnetic phases of Nd0.5Sr0.5MnO3.

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