Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>

The quadrupole hyperfine interaction in Li2ZrF6 and Li2HfF6 has been studied as a function of temperature. Both lattices are characterized by very similar low and symmetric electric field gradients at probe sites and no phase transitions were observed up to 770 K. On heating, between 700 and 830 K,...

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Autores principales: Dova, María Teresa, Rivas, Patricia Claudia, Martínez, Jorge Alberto, Caracoche, María Cristina, López García, Alberto Raúl
Formato: Articulo
Lenguaje:Inglés
Publicado: 1986
Materias:
Física
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/145003
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-145003
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
spellingShingle Física
Dova, María Teresa
Rivas, Patricia Claudia
Martínez, Jorge Alberto
Caracoche, María Cristina
López García, Alberto Raúl
Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
topic_facet Física
description The quadrupole hyperfine interaction in Li2ZrF6 and Li2HfF6 has been studied as a function of temperature. Both lattices are characterized by very similar low and symmetric electric field gradients at probe sites and no phase transitions were observed up to 770 K. On heating, between 700 and 830 K, the Li2ZrF6 undergoes chemical reactions which give rise to ZrO2 and then to Li3ZrF7 (high temperature α-phase) and Li2ZrO3. On cooling, below 750 K, the α→β transition in Li3 ZrF7 already reported is found to take place. An analogous behaviour is determined for Li2HfF6. Accordingly, the same decomposition steps and exstence of high and low temperature phases for Li3HfF7 can be inferred.
format Articulo
Articulo
author Dova, María Teresa
Rivas, Patricia Claudia
Martínez, Jorge Alberto
Caracoche, María Cristina
López García, Alberto Raúl
author_facet Dova, María Teresa
Rivas, Patricia Claudia
Martínez, Jorge Alberto
Caracoche, María Cristina
López García, Alberto Raúl
author_sort Dova, María Teresa
title Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
title_short Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
title_full Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
title_fullStr Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
title_full_unstemmed Hyperfine interactions in Li<SUB>2</SUB>ZrF<SUB>6</SUB> and Li<SUB>2</SUB>HfF<SUB>6</SUB>
title_sort hyperfine interactions in li<sub>2</sub>zrf<sub>6</sub> and li<sub>2</sub>hff<sub>6</sub>
publishDate 1986
url http://sedici.unlp.edu.ar/handle/10915/145003
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