La0.67Sr0.33MnO3/LaMnO3 perovskite oxide metal/semiconductor superlattices Pankaj Jha, Timothy D. Sands, Laura Cassels, Philip Jackson, Tela Favaloro, Benjamin Kirk, Joshua Zide, Xianfan Xu, and Ali Shakouri School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana 47907, USA Birck Nanotechnology Center, Purdue University, West Lafayette, Indiana 47907, USA Schoo...

We demonstrate the feasibility of Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy on solids by means of femtosecond soft x-ray pulses from a free-electron laser (FEL). Our experiments, carried out at the Free-Electron Laser at Hamburg (FLASH), used a special sample geometry, spectrographic energy dispersion, single shot position-sensitive detection and a data normalization proce...

We have investigated the volume collapse occurring in LaMnO3 unit cell using anisotropic Potts model modified by two types of interactions which has been used to study change Mn-O bonds lengths as function temperature. The bond are related occupation orbits. lattice parameters and distortion modes well. shown that is due temperature raised through transition. It all studied here decrease with i...