High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties

Tsvyashchenko, A. V.; Menushenkov, A. P.; Sidorov, V. A.; Petrova, A. E.; Fomicheva, L. N.; Chernysheva, O. V.; Lebed, Yu. B.; Axenov, S. N.; Bud’ko, S. L.; Sun, Liling; Zhao, Zhongxian

doi:10.1016/j.jallcom.2015.06.203

Title: High pressure synthesis of a new phase of YbAg₂: Structure, valence of Yb and properties

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Abstract

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).

Authors:

Tsvyashchenko, A. V. ^[1]; Menushenkov, A. P. ^[2]; Sidorov, V. A. ^[1]; Petrova, A. E. ^[1]; Fomicheva, L. N. ^[1]; Chernysheva, O. V. ^[2]; Lebed, Yu. B. ^[3]; Axenov, S. N. ^[4]; Bud’ko, S. L. ^[5]; Sun, Liling ^[6]; Zhao, Zhongxian ^[6]

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)

Publication Date:: Wed Aug 05 00:00:00 EDT 2015

Research Org.:: Ames Lab., Ames, IA (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES)

OSTI Identifier:: 1227412

Alternate Identifier(s):: OSTI ID: 1250204

Report Number(s):: IS-J-8820
Journal ID: ISSN 0925-8388; PII: S0925838815303236

Grant/Contract Number:: 14-02-00001; 14-22-01002-ofi_m; RSF-14-22-00093; 91321207; 11427805; DE-AC02-07CH11358; AC02-07CH11358

Resource Type:: Accepted Manuscript

Journal Name:: Journal of Alloys and Compounds

Additional Journal Information:: Journal Volume: 650; Journal Issue: C; Journal ID: ISSN 0925-8388

Publisher:: Elsevier

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE; high-pressure reaction; new phase; valence state; fermi-liquid; kadowaki-woods relation

Citation Formats


                    Tsvyashchenko, A. V., Menushenkov, A. P., Sidorov, V. A., Petrova, A. E., Fomicheva, L. N., Chernysheva, O. V., Lebed, Yu. B., Axenov, S. N., Bud’ko, S. L., Sun, Liling, and Zhao, Zhongxian. High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties.  United States: N. p., 2015. 
Web.  doi:10.1016/j.jallcom.2015.06.203.

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                    Tsvyashchenko, A. V., Menushenkov, A. P., Sidorov, V. A., Petrova, A. E., Fomicheva, L. N., Chernysheva, O. V., Lebed, Yu. B., Axenov, S. N., Bud’ko, S. L., Sun, Liling, & Zhao, Zhongxian. High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties.  United States.  https://doi.org/10.1016/j.jallcom.2015.06.203

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                    Tsvyashchenko, A. V., Menushenkov, A. P., Sidorov, V. A., Petrova, A. E., Fomicheva, L. N., Chernysheva, O. V., Lebed, Yu. B., Axenov, S. N., Bud’ko, S. L., Sun, Liling, and Zhao, Zhongxian. Wed .  
"High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties".  United States.  https://doi.org/10.1016/j.jallcom.2015.06.203.  https://www.osti.gov/servlets/purl/1227412.

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@article{osti_1227412,

  title        = {High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties},

  author       = {Tsvyashchenko, A. V. and Menushenkov, A. P. and Sidorov, V. A. and Petrova, A. E. and Fomicheva, L. N. and Chernysheva, O. V. and Lebed, Yu. B. and Axenov, S. N. and Bud’ko, S. L. and Sun, Liling and Zhao, Zhongxian},

  abstractNote = {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).},

  doi          = {10.1016/j.jallcom.2015.06.203},

  journal      = {Journal of Alloys and Compounds},

  number       = C,

  volume       = 650,

  place        = {United States},

  year         = {Wed Aug 05 00:00:00 EDT 2015},

  month        = {Wed Aug 05 00:00:00 EDT 2015}

}

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Title: High pressure synthesis of a new phase of YbAg2: Structure, valence of Yb and properties

Abstract

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Title: High pressure synthesis of a new phase of YbAg₂: Structure, valence of Yb and properties