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Structural analysis of the filled skutterudite at high pressure and low temperature

✍ Scribed by Atsushi Miyake; Yuki Nakamoto; Tomoko Kagayama; Keiki Takeda; Yausuo Ohishi; Katsuya Shimizu; Kunihiro Kihou; Chihiro Sekine; Ichimin Shirotani

Publisher: Elsevier Science
Year: 2006
Tongue: English
Weight: 231 KB
Volume: 378-380
Category: Article
ISSN: 0921-4526
DOI: 10.1016/j.physb.2006.01.075

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✦ Synopsis

We performed synchrotron X-ray powder diffraction experiments on the filled skutterudite PrRu 4 P 12 at high pressure and low temperature to investigate the role of structural changes in the metallization and superconducting transition above 11 GPa. We compared the structural parameters between the insulating and metallic phases. An anomalous enhancement of the P atomic displacement is observed at 17.0 GPa and 10 K away from the Ru 8 cubic sublattice are observed. This change may play a key role to the metallization at higher pressure.

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