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Valence fluctuated state in Yb 4 As 3 studied by resonant x-ray scattering
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nakao, Hironori Kiyoto, Kawasaki Kodama, S. Bizen, Daisuke Matsumura, Takeshi Iwasa, Kazuaki Murakami, Youichi Ochiai, Akira |
| Copyright Year | 2005 |
| Abstract | The oscillation photograph at T=291 K near the fundamental peak (2 2 0) is shown in the figure. The (2 2 0)H of the cubic structure and (2 2 0)L, (2 –2 0)L of the trigonal one coexist clearly owing to this first-order phase transition. We have also measured the RXS at (3 –3 0). Finally, it becomes clear that the trigonal structure of the charge-ordering state survives as a SRO-CO in the cubic structure of the charge disordered state. The SRO-CO is expected to be the fully charge ordered state, while it accompanies few atomic displacement due to the charge ordering. The correlation length of the SRO-CO gradually decreases with increasing temperature like a second order transition, and still survives even at 320K. These are first observation of the spatial correlation of the VF state, and this success with typical VF compound, Yb4As3, will be crucial in the study of the VF states. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://pfwww.kek.jp/acr2004pdf/part_b/pf04b182.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
