Structural Phase Transition Nomenclature. Report of an IUCr Working Group on Phase Transition Nomenclature
نویسندگان
چکیده
منابع مشابه
Nomenclature of magnetic, incommensurate, composition-changed morphotropic, polytype, transient-structural and quasicrystalline phases undergoing phase transitions. II. Report of an IUCr Working Group on Phase Transition Nomenclature.
A general nomenclature applicable to the phases that form in any sequence of transitions in the solid state has been recommended by an IUCr Working Group [Acta Cryst. (1998). A54, 1028-1033]. The six-field notation of the first Report, hereafter I, was applied to the case of structural phase transitions, i.e. to transformations resulting from temperature and/or pressure changes between two crys...
متن کاملComments on quasicrystalline phases and examples of quasicrystalline phase nomenclature in "Nomenclature of magnetic, incommensurate, composition-changed morphotropic, polytype, transient-structural and quasicrystalline phases undergoing phase transitions. II. Report of an IUCr Working Group on Phase Transition Nomenclature" by J.-C. Tolédano et al. (2001). Acta Cryst. A57, 614-626.
In this Report, some suggestions for the nomenclature of quasicrystalline phases and their crystalline approximants have been put forward and examples have been given, about which I should like to make the following comments: 1. In x7.5 of this Report, there is a statement aquasicrystalline phase is thus considered to be characterized by the absence of an averaged Bravais lattice and/or the obs...
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The paper discuss the nomenclature of martensites in the P-phase alloys and proposes to continue to use the current nomenclature with emphasis on the correct interpretations in terms of stacking sequence of the basal planes and the true symmetry of the martensite structure. In their paper "New description of Long Period Stacking Order Structures of Martensites in J3-Phase Alloys" Otsuka et al [...
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This document has been written in response to meetings on “Locus-specific Mutation Databases” held on March 24, 1996 in Heidelberg, Germany and “Mutation Databases” on October 29, 1996 in San Francisco, California. As a chairperson of the Nomenclature committee, the first author had accepted the task of preparing and circulating a document with recommendations for debate, further discussions an...
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A structural phase transition has been found using electron diffraction technique in PrRu4P12 accompanied by a metal insulator (M I) transition (TMI = 60K). Weak superlattice spots appeared at (H, K, L) (H + K + L = 2n + 1; n is an integer) position at a temperature of T = 12 K and 40 K. Above T = 70 K, the spots completely vanished. The space group of the low temperature phase is probably Pm 3...
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ژورنال
عنوان ژورنال: Acta Crystallographica Section A Foundations of Crystallography
سال: 1998
ISSN: 0108-7673
DOI: 10.1107/s0108767398008150