Crystallographic Analysis of the Atomic Configurations in the Cubic (Formula presented.) Structural Type K4Ag18Te11 and Related Structures

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Crystallographic Analysis of the Atomic Configurations in the Cubic (Formula presented.) Structural Type K₄Ag₁₈Te₁₁ and Related Structures. / Borisov, S. V.; Pervukhina, N. V.; Magarill, S. A.

In: Crystallography Reports, Vol. 65, No. 2, 01.03.2020, p. 197-201.

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

BibTeX

@article{5e833f7425764443a5d00be067157581,

title = "Crystallographic Analysis of the Atomic Configurations in the Cubic (Formula presented.) Structural Type K4Ag18Te11 and Related Structures",

abstract = "The K4Ag18Te11, Tl4Ag18Te11, and BaHg11 cubic structures have been crystallographically analyzed within the study of the “symmetry–stability of crystalline materials” problem. The high symmetry of these structures is initiated by the local symmetry of templates, which are cuboctahedra composed of twelve Ag polyhedra around a Te anion (for the former two compounds) and twelve Hg polyhedra around a central Hg atom (for the latter compound). Similar cuboctahedra, consisting of K, Tl, and Ba cations, are formed in the second coordination sphere. The role of symmetry in the reduction of atomic degrees of freedom, which provides the structure stability, has been estimated. The qualitative stability criteria are formulated.",

author = "Borisov, {S. V.} and Pervukhina, {N. V.} and Magarill, {S. A.}",

year = "2020",

month = mar,

day = "1",

doi = "10.1134/S1063774520020042",

language = "English",

volume = "65",

pages = "197--201",

journal = "Crystallography Reports",

issn = "1063-7745",

publisher = "PLEIADES PUBLISHING INC",

number = "2",

}

RIS

TY - JOUR

T1 - Crystallographic Analysis of the Atomic Configurations in the Cubic (Formula presented.) Structural Type K4Ag18Te11 and Related Structures

AU - Borisov, S. V.

AU - Pervukhina, N. V.

AU - Magarill, S. A.

PY - 2020/3/1

Y1 - 2020/3/1

N2 - The K4Ag18Te11, Tl4Ag18Te11, and BaHg11 cubic structures have been crystallographically analyzed within the study of the “symmetry–stability of crystalline materials” problem. The high symmetry of these structures is initiated by the local symmetry of templates, which are cuboctahedra composed of twelve Ag polyhedra around a Te anion (for the former two compounds) and twelve Hg polyhedra around a central Hg atom (for the latter compound). Similar cuboctahedra, consisting of K, Tl, and Ba cations, are formed in the second coordination sphere. The role of symmetry in the reduction of atomic degrees of freedom, which provides the structure stability, has been estimated. The qualitative stability criteria are formulated.

AB - The K4Ag18Te11, Tl4Ag18Te11, and BaHg11 cubic structures have been crystallographically analyzed within the study of the “symmetry–stability of crystalline materials” problem. The high symmetry of these structures is initiated by the local symmetry of templates, which are cuboctahedra composed of twelve Ag polyhedra around a Te anion (for the former two compounds) and twelve Hg polyhedra around a central Hg atom (for the latter compound). Similar cuboctahedra, consisting of K, Tl, and Ba cations, are formed in the second coordination sphere. The role of symmetry in the reduction of atomic degrees of freedom, which provides the structure stability, has been estimated. The qualitative stability criteria are formulated.

UR - http://www.scopus.com/inward/record.url?scp=85083198752&partnerID=8YFLogxK

U2 - 10.1134/S1063774520020042

DO - 10.1134/S1063774520020042

M3 - Article

AN - SCOPUS:85083198752

VL - 65

SP - 197

EP - 201

JO - Crystallography Reports

JF - Crystallography Reports

SN - 1063-7745

IS - 2

ER -

ID: 24012634