High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties
Journal Article
·
· Journal of Alloys and Compounds
- Russian Academy of Sciences (RAS), Troitsk (Russian)
- Moscow Engineering Physics Inst., Moscow (Russian)
- Russian Academy of Sciences (RAS), Moscow (Russian Federation); Moscow Inst. for Physics and Technology (Russian Federation)
- Russian Academy of Sciences (RAS), Moscow (Russian Federation)
- Iowa State Univ., Ames, IA (United States)
- Chinese Academy of Sciences (CAS), Beijing (China); Collaborative Innovation Center of Quantum Matter, Beijing (China)
The new phase of YbAg2 was obtained using high-pressure and high-temperature reaction. YbAg2 crystallizes in the MgZn2 structure (the space group P63/mmc space group, No 194) with a = 5.68153(3) Å and c = 9.31995(7) Å and the unit cell volume V = 260.54(3) Å3. The XANES analysis showed that the valence state of Yb is +2.8. The low-temperature dependences of the electrical resistivity and magnetic susceptibility can be adequately described by a T2 term that supports the Fermi-liquid picture. Furthermore, the Kadowaki–Woods relation gives a low value of the degeneracy (N = 2).
- Research Organization:
- Ames Lab., Ames, IA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- 14-02-00001; 14-22-01002-ofi_m; RSF-14-22-00093; 91321207; 11427805; DE-AC02-07CH11358; AC02-07CH11358
- OSTI ID:
- 1227412
- Alternate ID(s):
- OSTI ID: 1250204
- Report Number(s):
- IS-J-8820; PII: S0925838815303236
- Journal Information:
- Journal of Alloys and Compounds, Vol. 650, Issue C; ISSN 0925-8388
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 2 works
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