Details

Autor(en) / Beteiligte

• Kohara, S
• Tajiri, H
• Song, C H
• Ohara, K
• Temleitner, L
• Sugimito, K
• Fujiwara, A
• Pusztai, L
• Usuki, T
• Hosokawa, S
• Benino, Y
• Kitamura, N
• Fukumi, K

Titel

Anomalous x-ray scattering studies of functional disordered materials

Ist Teil von

• Journal of physics. Conference series, 2014-01, Vol.502 (1), p.12014-6

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2014

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• We have developed anomalous x-ray scattering (AXS) spectrometers, that employ intrinsic Ge detectors and crystal analyzers, at SPring-8. The use of LiF analyzer crystal provides us with an energy resolution of ~ 12 eV. Furthermore, it has been established that the use of AXS technique is essential to reveal the relationship between the atomic structure and its function of a fast phase-change material, Ge2Sb2Te5. We were able to address the issue of why the amorphous phase of fast phase change materials is stable at room temperature for a long time despite the fact that it can rapidly transform to the crystalline phase by using a combination of AXS and large scale density functional theory-based molecular dynamics simulations.