Crystal structure and physical properties of a novel ternary compound La15MoxGe9

Joanna Blawat; Weiwei Xie; Robert J. Cava; Tomasz Klimczuk

doi:10.1016/j.cplett.2019.06.065

Crystal structure and physical properties of a novel ternary compound La₁₅Mo_xGe₉

Joanna Blawat, Weiwei Xie, Robert J. Cava, Tomasz Klimczuk

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We present the synthesis, structural characterization and physical properties measurements of a new compound, La₁₅Mo_xGe₉ in Mn₅Si₃-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La₁₅Mo_xGe₉ crystallizes in non-centrosymmetric hexagonal structure P6₃mc (#186) with lattice parameters a = b = 15.495(5) Å and c = 6.917(2) Å. The refinement on single X-ray diffraction data show that interstitial atom Mo occupies two different Wyckoff positions (2a, 2b) with 0.19(2) Mo/per f.u. The specific heat properties were well studied. The obtained Sommerfeld coefficient and Debye temperature are: γ = 89.2(9) mJ/(mol K²) and Θ_D = 190(5) K, respectively. La₁₅Mo_xGe₉ is the first compound in the ternary system La-Mo-Ge.

Original language	English (US)
Pages (from-to)	612-616
Number of pages	5
Journal	Chemical Physics Letters
Volume	730
DOIs	https://doi.org/10.1016/j.cplett.2019.06.065
State	Published - Sep 2019

All Science Journal Classification (ASJC) codes

General Physics and Astronomy
Physical and Theoretical Chemistry

Access to Document

10.1016/j.cplett.2019.06.065

Cite this

@article{fd0278fb5d3742b0b87ba0693dc7289d,

title = "Crystal structure and physical properties of a novel ternary compound La15MoxGe9",

abstract = "We present the synthesis, structural characterization and physical properties measurements of a new compound, La15MoxGe9 in Mn5Si3-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La15MoxGe9 crystallizes in non-centrosymmetric hexagonal structure P63mc (#186) with lattice parameters a = b = 15.495(5) {\AA} and c = 6.917(2) {\AA}. The refinement on single X-ray diffraction data show that interstitial atom Mo occupies two different Wyckoff positions (2a, 2b) with 0.19(2) Mo/per f.u. The specific heat properties were well studied. The obtained Sommerfeld coefficient and Debye temperature are: γ = 89.2(9) mJ/(mol K2) and ΘD = 190(5) K, respectively. La15MoxGe9 is the first compound in the ternary system La-Mo-Ge.",

author = "Joanna Blawat and Weiwei Xie and Cava, {Robert J.} and Tomasz Klimczuk",

note = "Publisher Copyright: {\textcopyright} 2019",

year = "2019",

month = sep,

doi = "10.1016/j.cplett.2019.06.065",

language = "English (US)",

volume = "730",

pages = "612--616",

journal = "Chemical Physics Letters",

issn = "0009-2614",

publisher = "Elsevier",

}

TY - JOUR

T1 - Crystal structure and physical properties of a novel ternary compound La15MoxGe9

AU - Blawat, Joanna

AU - Xie, Weiwei

AU - Cava, Robert J.

AU - Klimczuk, Tomasz

PY - 2019/9

Y1 - 2019/9

N2 - We present the synthesis, structural characterization and physical properties measurements of a new compound, La15MoxGe9 in Mn5Si3-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La15MoxGe9 crystallizes in non-centrosymmetric hexagonal structure P63mc (#186) with lattice parameters a = b = 15.495(5) Å and c = 6.917(2) Å. The refinement on single X-ray diffraction data show that interstitial atom Mo occupies two different Wyckoff positions (2a, 2b) with 0.19(2) Mo/per f.u. The specific heat properties were well studied. The obtained Sommerfeld coefficient and Debye temperature are: γ = 89.2(9) mJ/(mol K2) and ΘD = 190(5) K, respectively. La15MoxGe9 is the first compound in the ternary system La-Mo-Ge.

AB - We present the synthesis, structural characterization and physical properties measurements of a new compound, La15MoxGe9 in Mn5Si3-type derived structure with interstitial Mo. The sample was synthesized by arc-melting method. La15MoxGe9 crystallizes in non-centrosymmetric hexagonal structure P63mc (#186) with lattice parameters a = b = 15.495(5) Å and c = 6.917(2) Å. The refinement on single X-ray diffraction data show that interstitial atom Mo occupies two different Wyckoff positions (2a, 2b) with 0.19(2) Mo/per f.u. The specific heat properties were well studied. The obtained Sommerfeld coefficient and Debye temperature are: γ = 89.2(9) mJ/(mol K2) and ΘD = 190(5) K, respectively. La15MoxGe9 is the first compound in the ternary system La-Mo-Ge.

UR - http://www.scopus.com/inward/record.url?scp=85068165375&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068165375&partnerID=8YFLogxK

U2 - 10.1016/j.cplett.2019.06.065

DO - 10.1016/j.cplett.2019.06.065

M3 - Article

AN - SCOPUS:85068165375

SN - 0009-2614

VL - 730

SP - 612

EP - 616

JO - Chemical Physics Letters

JF - Chemical Physics Letters

ER -

Crystal structure and physical properties of a novel ternary compound La₁₅Mo_xGe₉

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this