Applied Physics Letters, volume 105, issue 7, pages 71903

Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction

Publication typeJournal Article
Publication date2014-08-18
Quartile SCImago
Q1
Quartile WOS
Q2
Impact factor4
ISSN00036951, 10773118
Physics and Astronomy (miscellaneous)
Abstract
We present the in-situ X-ray diffraction studies of RbN3 up to 42.0 GPa at room temperature to supplement the high pressure exploration of alkali azides. Two pressure-induced phase transitions of α-RbN3 → γ-RbN3 → δ-RbN3 were revealed at 6.5 and 16.0 GPa, respectively. During the phase transition of α-RbN3 → γ-RbN3, lattice symmetry decreases from a fourfold to a twofold axis accompanied by a rearrangement of azide anions. The γ-RbN3 was identified to be a monoclinic structure with C2/m space group. Upon further compression, an orthogonal arrangement of azide anions becomes energetically favorable for δ-RbN3. The compressibility of α-RbN3 is anisotropic due to the orientation of azide anions. The bulk modulus of α-RbN3 is 18.4 GPa, quite close to those of KN3 and CsN3. By comparing the phase transition pressures of alkali azides, their ionic character is found to play a key role in pressure-induced phase transitions.

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GOST Copy
Li D. et al. Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction // Applied Physics Letters. 2014. Vol. 105. No. 7. p. 71903.
GOST all authors (up to 50) Copy
Li D., Wu X., Jiang J., Wang X., Zhang J., CUI Q., Zhu H. Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction // Applied Physics Letters. 2014. Vol. 105. No. 7. p. 71903.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1063/1.4893464
UR - https://doi.org/10.1063/1.4893464
TI - Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction
T2 - Applied Physics Letters
AU - Li, Dongmei
AU - Wu, Xiaoxin
AU - Jiang, Junru
AU - Wang, Xiaoli
AU - Zhang, Jian
AU - CUI, Qiliang
AU - Zhu, Hongyang
PY - 2014
DA - 2014/08/18 00:00:00
PB - American Institute of Physics (AIP)
SP - 71903
IS - 7
VL - 105
SN - 0003-6951
SN - 1077-3118
ER -
BibTex |
Cite this
BibTex Copy
@article{2014_Li,
author = {Dongmei Li and Xiaoxin Wu and Junru Jiang and Xiaoli Wang and Jian Zhang and Qiliang CUI and Hongyang Zhu},
title = {Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction},
journal = {Applied Physics Letters},
year = {2014},
volume = {105},
publisher = {American Institute of Physics (AIP)},
month = {aug},
url = {https://doi.org/10.1063/1.4893464},
number = {7},
pages = {71903},
doi = {10.1063/1.4893464}
}
MLA
Cite this
MLA Copy
Li, Dongmei, et al. “Pressure-induced phase transitions in rubidium azide: Studied by in-situ x-ray diffraction.” Applied Physics Letters, vol. 105, no. 7, Aug. 2014, p. 71903. https://doi.org/10.1063/1.4893464.
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