Charge Ordering and Sound Velocity Anomaly in La1-XSrXMnO3(X≥0.5)

Hiroyuki Fujishiro; Tetsuo Fukase; Manabu Ikebe

doi:10.1143/jpsj.67.2582

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Charge Ordering and Sound Velocity Anomaly in La_1-XSr_XMnO₃(X≥0.5)

Hiroyuki Fujishiro Tetsuo Fukase Manabu Ikebe

Year: 1998 Journal: Journal of the Physical Society of Japan Vol: 67 (8)Pages: 2582-2585 Publisher: Physical Society of Japan

DOI: 10.1143/jpsj.67.2582

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Abstract

The electrical resistivity, magnetization, dilatation and sound velocity have been measured for La 1- X Sr X MnO 3 (0.48≤ X ≤0.90) polycrystals. Observed anomalies in the sound velocity and the dilatation strongly suggest the occurrence of the charge ordering within the Sr concentration range 0.48≤ X ≤0.82. A phase diagram of the charge-ordered state in La 1- X Sr X MnO 3 as a function of temperature T and the Sr concentration X is proposed.

Keywords:

Electrical resistivity and conductivity Condensed matter physics Anomaly (physics) Charge ordering Phase diagram Charge (physics) Magnetization Physics Speed of sound Materials science Phase (matter) Thermodynamics Magnetic field

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Magnetic and transport properties of perovskites and related materials

Physical Sciences → Materials Science → Electronic, Optical and Magnetic Materials

Advanced Condensed Matter Physics

Physical Sciences → Physics and Astronomy → Condensed Matter Physics

High-pressure geophysics and materials

Physical Sciences → Earth and Planetary Sciences → Geophysics

Charge Ordering and Sound Velocity Anomaly in La_1-XSr_XMnO₃(X≥0.5)

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