Abstract

Abstract We performed a perturbed angular correlation (PAC) study on the prototypical LaMnO 3+ δ system that presents a rich variety of structural and magnetic phase transitions as a function of the oxygen content ( δ ) or as a function of temperature ( T ). The PAC signal at room temperature allowed the determination of the electrical field gradient parameters in the orthorhombic (O′ or O ∗ ) or rhombohedral (R) phases, which show a drastic changes in the O ∗ –R transition.

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