| Autor: |
Sheptyakov, D. V., Pomjakushin, V. Yu., Stern, R., Heinmaa, I., Nakamura, H., Kimura, T. |
| Rok vydání: |
2012 |
| Předmět: |
|
| Zdroj: |
Physical Review B 86, 014433 (2012) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.86.014433 |
| Popis: |
The low-temperature crystal structure of BaCuSi2O6 has been investigated with high-resolution synchrotron x-ray and neutron powder diffraction techniques and has been found to be on average (ignoring the incommensurate modulation) orthorhombic, with the most probable space group Ibam. The Cu-Cu dimers in this material are forming two types of layers with distinctly different interatomic distances. Subtle changes also modify the partially frustrated interlayer Cu-Cu exchange paths. The present results corroborate the interpretation of low-temperature nuclear magnetic resonance and inelastic neutron scattering data in terms of distinct dimer layers. |
| Databáze: |
arXiv |
| Externí odkaz: |
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