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The rich phase diagram of bulk perovskite Pr1−xCaxMnO3 has resulted in a high tunability of physical properties. This has given rise to various studies related to fundamental research as well as prospective applications of the material. Importantly, as a consequence of strong correlation eﬀects, electronic and lattice degrees of freedom are vigorously coupled. Hence, it is debatable whether such bulk phase diagrams can be transferred to inherently strained epitaxial thin ﬁlms.
During this DENSsolutions Nanotalk, Dr. Tobias Meyer will present the structural orthorhombic to pseudo-cubic transition for x = 0.1 in ion-beam sputtered thin films. He will also point out the diﬀerences in the respective bulk system by employing in-situ heating nano-beam electron diﬀraction, following the temperature dependence of lattice constants. Moreover, he will demonstrate that controlling the environment during heating, i.e. preventing oxygen loss, is crucial in order to avoid irreversible structural changes.
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Advanced in situ TEM solutions for heating, biasing, gas and liquid experiments. Stimulate your sample and start capturing dynamics today.
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