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7 papers · 2 filters
The effect of compressive strain on the Raman modes of the dry and hydrated BaCe0.8Y0.2O3 proton conductor
Qianli Chen, Tzu-Wen Huang, Maria Baldini +7
The BaCe0.8Y0.2O3-δ proton conductor under hydration and under compressive strain has been analyzed with high pressure Raman spectroscopy and high pressure x-ray diffraction. The p…
Solid-to-solid phase transition from amorphous carbon to graphite nanocrystal induced by intense femtosecond x-ray pulses
J. Gaudin, J. Chalupský, M. Toufarová +22
We present the results of an experiment where amorphous carbon was irradiated by femtosecond x-ray free electron laser pulses. The 830 eV laser pulses induce a phase transition in…
Widespread spin polarization effects in photoemission from topological insulators
Chris Jozwiak, Yulin Chen, Alexei V. Fedorov +11
High resolution spin- and angle-resolved photoemission spectroscopy (spin-ARPES) was performed on the three-dimensional topological insulator BiSe using a recently develope…
Visualizing Individual Nitrogen Dopants in Monolayer Graphene
Liuyan Zhao, Rui He, Kwang Taeg Rim +15
In monolayer graphene, substitutional doping during growth can be used to alter its electronic properties. We used scanning tunneling microscopy (STM), Raman spectroscopy, x-ray sp…
Interfacial nanostructure induced spin-reorientation transition in Ni/Fe/Ni/W(110)
J. -S. Lee, J. T. Sadowski, H. Jang +5
We investigated the mechanism of the spin-reorientation transition (SRT) in the Ni/Fe/Ni/W(110) system using in situ low-energy electron microscopy, x-ray magnetic circular dichroi…
Optimized fabrication of high quality La0.67Sr0.33MnO3 thin films considering all essential characteristics
H Boschker, M Huijben, A Vailionis +9
In this article, an overview of the fabrication and properties of high quality La0.67Sr0.33MnO3 (LSMO) thin films is given. A high quality LSMO film combines a smooth surface morph…