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Chemical Pressure Tuning of Magnetic Coupling in the La1.4Sr1.6Mn2O7 Bilayered Manganite

2007/10/24 by Lorenzo Malavasi, C. Ritter, Clemens Ritter +9
Materials Science · Physics and Astronomy · #FOS: Physical sciences #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci) #Multiferroics and related materials #Shape Memory Alloy Transformations #cond-mat.mtrl-sci

paper · pdf · doi:10.48550/arxiv.0710.4502

To be published as a Letter in J. Physical Chemistry C

arxiv created 2007/10/24 · openalex publication_date 2007/10/24 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this paper the effect of the chemical pressure induced by the Sr replacement for Ca in the La1.4Sr1.6Mn2O7 lattice is directly probed by means of neutron diffraction as a function of temperature. The results show a progressive change of the magnetic coupling from ferromagnetic to antiferromagnetic by increasing the Ca content,. indicating that the orbital order of the Mn ions is affected in the same way by the application of an external pressure and by the chemical pressure.

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