Study of doping effect, phase separation and heterojunction in CMR manganites

Structure and photovoltaic properties of strongly correlated manganite/titanite heterojunctions

“…In ion-beam sputtering, the emitted target atoms and, especially, the target-reflected noble gas atoms give rise to pronounced defect and strain generation [17]. This is partly compensated by defect annihilation due to the rather high deposition temperatures.…”

“…In this context, one class of well-studied material systems are perovskite manganites. [17,26,33,38] The interaction of different degrees of freedom of orbital, lattice, charge and spin lead to a phase diagram with a huge variety of electronic and magnetic ground states and the occurrence of different ordering phenomena. [17,23] A main strategy in systems with strong electron-phonon coupling is the separation of the generated excess carriers before they can thermalize, i.e.…”

“…[16] In addition, materials with strong interactions of the spin, charge and lattice degrees of freedom came into the focus of research for a broad range of technical applications. [17][18][19][20][21][22] Due to these cooperative interactions, a huge variety of electronic and magnetic ground 6 states as well as ordered phases give rise to new concepts of control tactics on physical properties. Correlated electron systems are evaluated for photovoltaic energy conversion as well.…”