The new intermetallic compound Ga5Pt:Structure from a twinned crystal

被引：6

作者：

Tillard, Monique ^{[1
]}

Belin, Claude ^{[1
]}

机构：

[1] Univ Montpellier 2, Inst Charles Gerhardt, UMR CNRS UM2 5253, CC1502, F-34095 Montpellier, France

来源：

INTERMETALLICS | 2011年 / 19卷 / 04期

关键词：

Intermetallics; miscellaneous; Ab-initio calculations; Diffraction (X-ray); Twinning; Electronic structure of metals and alloys; VERWANDTER LEGIERUNGEN; PLATINUM-GALLIUM; ZUM AUFBAU; ALUMINUM;

D O I：

10.1016/j.intermet.2010.11.031

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

As intermetallic Pt-Ga alloys may form at the metal-semiconductor interfaces (Pt/GaAs) in electronic devices, their crystal structures are of interest. Ga7Pt3 has been prepared and its structure confirmed from single crystal X-ray diffraction in the Im (3) over barn cubic space group with a cell parameter of 8.78604(8) angstrom. For the new Ga-richer compound Ga5Pt, the crystal structure has been solved from a twinned crystal in the monoclinic P2(1)/m space group, a = 6.3977(3), b = 15.8823(5), c = 8.8326(4) angstrom, beta = 110.198(5)degrees, Z = 16. Bonding in Ga5Pt proceeds through Ga-Ga and Ga-Pt bonds while Pt dumbbells (Pt-Pt = 2.776 angstrom) are found in Ga7Pt3. The electronic structures calculated by DFT methods indicate metallic properties for both compounds. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：518 / 525

页数：8

共 50 条

[1] Rh3Ga5:: a new intermetallic compound in the rhodium-gallium system and its crystal structure
Shatruk, M
Lee, S
JOURNAL OF ALLOYS AND COMPOUNDS, 2003, 359 : 124 - 127
[2] Flux growth synthesis, single crystal and electronic structure of the new intermetallic compound Pt2Ga17Ta3
Tillard, Monique
COMPUTATIONAL MATERIALS SCIENCE, 2021, 197
[3] Crystal structure of new intermetallic compound Mg3Co2Ga7
Pavlyuk, V.
Marciniak, B.
Chumak, I.
Rózycka-Sokolowska, E.
Prochwicz, W.
Kończyk, J.
1600, Elsevier Ltd, Langford Lane, Kidlington, Oxford, OX5 1GB, United Kingdom (442): : 1 - 2
[4] Crystal structure of the intermetallic compound SrCdPt
Gulo, Fakhili
Koehler, Juergen
ACTA CRYSTALLOGRAPHICA SECTION E-CRYSTALLOGRAPHIC COMMUNICATIONS, 2014, 70 : 590 - +
[5] CRYSTAL-STRUCTURE OF INTERMETALLIC COMPOUND CA5AS3
HUTZ, A
NAGORSEN, G
ZEITSCHRIFT FUR METALLKUNDE, 1975, 66 (05): : 314 - 314
[6] THE STRUCTURE DETERMINATION OF A NEW INTERMETALLIC COMPOUND K3GA13
BELIN, C
ACTA CRYSTALLOGRAPHICA SECTION B-STRUCTURAL SCIENCE, 1980, 36 (JUN): : 1339 - 1343
[7] Crystal structure of the gallium-rich intermetallic compound Sm2Ru5Ga9 with a new superstructure of the CsCl-type
Schlüter, M
Jeitschko, W
ZEITSCHRIFT FUR KRISTALLOGRAPHIE-NEW CRYSTAL STRUCTURES, 2002, 217 (01): : 27 - 28
[8] Novel RCo5Ga7 intermetallic compound
Guo, YQ
Li, XM
Zhu, MG
Li, W
Chang, H
Liang, JK
SOLID STATE COMMUNICATIONS, 2004, 132 (06) : 365 - 368
[9] Crystal structure and properties of the new ternary compound Mg21Ga5Hg3
Zeng, Lingmin
Feng, Yan
Wang, Richu
Chen, Yeqing
INTERMETALLICS, 2009, 17 (11) : 873 - 877
[10] CRYSTAL STRUCTURE OF INTERMETALLIC COMPOUND CECOSI2
LUKASZEW.K
BODAK, O
BULLETIN DE L ACADEMIE POLONAISE DES SCIENCES-SERIE DES SCIENCES CHIMIQUES, 1969, 17 (02): : 63 - &

← 1 2 3 4 5 →