EFFECT OF MANGANESE IMPURITIES ON THE PHASE-TRANSITION SEQUENCE IN BCCD

• Tipo: Artigo em Revista Científica Internacional
• Data: 1991

Autores

RIBEIRO, JL (Autor) Outra; Chaves, MR (Autor) FCUP; Almeida, A (Autor) FCUP; MUSER, HE (Autor) Outra; ALBERS, J (Autor) Outra; KLOPPERPIEPER, A (Autor) Outra

Revista

Título: Physica Status Solidi (B): Basic Research

Vol. 163

Páginas: 511-517

ISSN: 0370-1972

Editora: Wiley-Blackwell

Indexação

ISI Web of Knowledge - 8 Citações

Outras Informações

ID Authenticus: P-001-QZV

DOI: 10.1002/pssb.2221630220

Abstract (EN): Pyroelectric and dielectric constant measurements to study the effect of Mn impurities on the phase transition sequence of betaine calcium chloride dihydrate (BCCD) were used. Mixed crystals of B(C(1-x)Mn(x))CD are grown from solutions with molar ratios of 5 and 20% of Mn. The chemical analysis of these crystals reveals compositions corresponding to x = 0.01 and x = 0.05, respectively. Replacing Ca by an ion with a smaller ionic radius is expected to induce local strains and local electric charges. The effect of the substitutional disorder on the different modulated commensurate phases is discussed.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 7