Synthesis, Properties and Bonding in Hume-Rothery Transition-metal Gallides and Indides

Research output: ThesisDoctoral Thesis (compilation)

Abstract

In this work the intermetallic systems formed by transition-metals from group 5 to 9 with Ga, In and Zn have been experimentally and theoretically studied in detail. Syntheses, compositional analyses, X-ray and neutron diffraction (single crystal as well as powder) and measurements of physical properties, e.g. magnetic susceptibility and resistivity has been made for all compounds. Electronic-structure calculations has been made for all examined compounds and was used jointly with the experimental methods to get a deeper understanding of the main issues dealt with, i.e. the atomic structure, structural stability and bonding of the investigated compounds.

The examined compounds crystallize in one of the three structure types PtHg4 (cubic, MnGa4 and CrGa4), V8Ga41 (trigonal, Cr8Ga29.8Zn11.2, Mn8Ga27.4Zn13.6, V8Ga36.9Zn4.1 and V8Ga41) and the FeGa3 type (tetragonal, FeGa3, CoGa3, CoGa2.76(2)Zn0.24(2), CoGa2.27(2)Zn0.73(2), CoIn3, CoIn2.50(1)Zn0.50(1), CoIn2.27(2)Zn0.73(2) and RuGa3).

The important features such as atomic structure, electronic structure, structural stability and bonding in these groups of Hume-Rothery compounds are now well comprehended.

Details

Authors
  • Per Viklund
Organisations
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Sciences

Keywords

  • Material technology, Kemi, Chemistry, Bonding, Structural stability, Electronic-structure, Neutron diffraction, X-ray diffraction, Atomic Structure, Intermetallics, Hume--Rothery, Materiallära, materialteknik, Chemical technology and engineering, Kemiteknik och kemisk teknologi
Original languageEnglish
QualificationDoctor
Awarding Institution
Supervisors/Assistant supervisor
  • [unknown], [unknown], Supervisor, External person
Award date2001 Oct 5
Publisher
  • Per Viklund, Husmansv.16, 240 10 Dalby,
Print ISBNs91-628-4910-7
Publication statusPublished - 2001
Publication categoryResearch

Bibliographic note

Defence details Date: 2001-10-05 Time: 13:15 Place: Sal F, Chemical Center, Sölvegatan 39, Lund External reviewer(s) Name: Kloo, Lars Title: Prof Affiliation: Oorganisk kemi, KTH, 100 44, Stockholm --- Article: The Hume-Rothery Compound Mn8Ga27.4Zn13.6:Separated Zn13-Clusters Interspersed in aPrimitive Cubic Host LatticeUlrich Häussermann, Per Viklund, Christer Svensson, Sten Eriksson, Pedro Berastegui, and Sven LidinAngew. Chem. Int. Ed.(copyright) 1999, 38, No.4 Article: Bonding and physical properties of Hume-Rotherycompounds with the PtHg4 structureU. Häussermann, P. Viklund, M. Boström,R. Norrestam, and S. I. SimakPhys. Rev. B, Vol. 63, 2001, p. 125118Copyright 2001 by the American Physical Society Article: From V8Ga36.9Zn4.1 and Cr8Ga29.8Zn11.2 toMn8Ga27.4Zn13.6: A Remarkable Onset of Zn ClusterFormation in an Intermetallic FrameworkPer Viklund, Christer Svensson, S. I. Simak,Pedro Berastegui, and Ulrich HäussermannAccepted by Chemistry-A European Journal 2001Copyright 2001 Wiley-VCH Verlag GmbH Article: FeGa3 and RuGa3 - Semiconducting IntermetallicCompoundsUlrich Häussermann, Magnus Boström, Per Viklund,Östen Rapp, Therese BjörnängenSubmitted to the J. of Solid State Chemistry,2001 Article: Variations of the FeGa3 Structure Type in theSystems CoIn3-xZnx and CoGa3-xZnxPer Viklund, Sven Lidin, Pedro Berastegui,Ulrich HäussermannSubmitted to the J. of Solid State Chemistry, 2001 The information about affiliations in this record was updated in December 2015. The record was previously connected to the following departments: Polymer and Materials Chemistry (LTH) (011001041)