Journal of Physical Chemistry Letters, volume 11, issue 3, pages 646-651

Superconducting Zirconium Polyhydrides at Moderate Pressures.

Xie Hui 1
Zhang Wenting 1
Duan Defang 1, 2
Huang Xiaoli 1
Huang Yanping 1
Song Hao 1
FENG XIAOLEI 3, 4
Yao Yansun 5
Pickard C. J. 2, 6
Cui Tian 1, 7
5
 
Department of Physics and Engineering Physics, University of Saskatchewan, Saskatoon, Saskatchewan S7N 5E2, Canada
6
 
Advanced Institute for Materials Research, Tohoku University, 2-1-1 Katahira, Aoba, Sendai 980-8577, Japan
7
 
School of Physical Science and Technology, Ningbo University, No. 818 Fenghua Road, Jiangbei District, Ningbo, 315211, China
Publication typeJournal Article
Publication date2020-01-04
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor5.7
ISSN19487185
Physical and Theoretical Chemistry
General Materials Science
Abstract
Highly compressed hydrides have been at the forefront of the search for high-Tc superconductivity. Especially, recent discovery of record-high Tc's in H3S and LaH10±x under high pressure fuels the enthusiasm finding good superconductors in similar hydride groups. Guided by first principles structure prediction, we successfully synthesized ZrH3 and Zr4H15 at modest pressures (30-50 GPa) in diamond anvil cells by two different reaction routes: ZrH2 + H2 at room temperature and Zr + H2 at ~ 1500 K by laser heating. From the synchrotron X-ray diffraction patterns, ZrH3 is found to have a Pm-3n structure corresponding to the familiar A15 structure, and Zr4H15 has a I-43d structure isostructural to Th4H15. Electrical resistance measurement and the dependence of Tc on applied magnetic field of the sample showed the emergence of two superconducting transitions at 6.4 and 4.0 K at 40 GPa, which correspond to the two Tc's for ZrH3 and Zr4H15.

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Xie H. et al. Superconducting Zirconium Polyhydrides at Moderate Pressures. // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 3. pp. 646-651.
GOST all authors (up to 50) Copy
Xie H., Zhang W., Duan D., Huang X., Huang Y., Song H., FENG X., Yao Y., Pickard C. J., Cui T. Superconducting Zirconium Polyhydrides at Moderate Pressures. // Journal of Physical Chemistry Letters. 2020. Vol. 11. No. 3. pp. 646-651.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1021/acs.jpclett.9b03632
UR - https://doi.org/10.1021%2Facs.jpclett.9b03632
TI - Superconducting Zirconium Polyhydrides at Moderate Pressures.
T2 - Journal of Physical Chemistry Letters
AU - Zhang, Wenting
AU - Duan, Defang
AU - Huang, Xiaoli
AU - Cui, Tian
AU - Xie, Hui
AU - Huang, Yanping
AU - Song, Hao
AU - FENG, XIAOLEI
AU - Yao, Yansun
AU - Pickard, C. J.
PY - 2020
DA - 2020/01/04 00:00:00
PB - American Chemical Society (ACS)
SP - 646-651
IS - 3
VL - 11
SN - 1948-7185
ER -
BibTex |
Cite this
BibTex Copy
@article{2020_Xie
author = {Wenting Zhang and Defang Duan and Xiaoli Huang and Tian Cui and Hui Xie and Yanping Huang and Hao Song and XIAOLEI FENG and Yansun Yao and C. J. Pickard},
title = {Superconducting Zirconium Polyhydrides at Moderate Pressures.},
journal = {Journal of Physical Chemistry Letters},
year = {2020},
volume = {11},
publisher = {American Chemical Society (ACS)},
month = {jan},
url = {https://doi.org/10.1021%2Facs.jpclett.9b03632},
number = {3},
pages = {646--651},
doi = {10.1021/acs.jpclett.9b03632}
}
MLA
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MLA Copy
Xie, Hui, et al. “Superconducting Zirconium Polyhydrides at Moderate Pressures..” Journal of Physical Chemistry Letters, vol. 11, no. 3, Jan. 2020, pp. 646-651. https://doi.org/10.1021%2Facs.jpclett.9b03632.
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