Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition

ISSN:
1432-2021
Keywords:
Key words Nepheline ; Incommensurate ; Rigid unit mode
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Geosciences
Physics
Notes:
Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
Type of Medium:
Electronic Resource
URL:
_version_ 1798295903584387073
autor Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
autorsonst Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
book_url http://dx.doi.org/10.1007/s002690050257
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM202920666
issn 1432-2021
journal_name Physics and chemistry of minerals
materialart 1
notes Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
package_name Springer
publikationsjahr_anzeige 2000
publikationsjahr_facette 2000
publikationsjahr_intervall 7999:2000-2004
publikationsjahr_sort 2000
publisher Springer
reference 27 (2000), S. 285-290
schlagwort Key words Nepheline
Incommensurate
Rigid unit mode
search_space articles
shingle_author_1 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
shingle_author_2 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
shingle_author_3 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
shingle_author_4 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
shingle_catch_all_1 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
Key words Nepheline
Incommensurate
Rigid unit mode
Key words Nepheline
Incommensurate
Rigid unit mode
Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
1432-2021
14322021
Springer
shingle_catch_all_2 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
Key words Nepheline
Incommensurate
Rigid unit mode
Key words Nepheline
Incommensurate
Rigid unit mode
Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
1432-2021
14322021
Springer
shingle_catch_all_3 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
Key words Nepheline
Incommensurate
Rigid unit mode
Key words Nepheline
Incommensurate
Rigid unit mode
Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
1432-2021
14322021
Springer
shingle_catch_all_4 Hayward, S. A.
Pryde, A. K. A.
de Dombal, R.F.
Carpenter, M. A.
Dove, M. T.
Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
Key words Nepheline
Incommensurate
Rigid unit mode
Key words Nepheline
Incommensurate
Rigid unit mode
Abstract  Calculations of the Rigid Unit Modes (RUMs) allowed in the nepheline structure are used to explain the diffuse scattering previously seen in electron diffraction experiments. The RUM calculations also show that the modulation wavelength for incommensurate nephelines is essentially determined by the framework topology. X-ray diffraction is used to measure the intensity of the diffuse scattering as a function of temperature. The diffuse intensity increases sharply at 308 K. This effect is interpreted as being due to the softening of a phonon mode, indicating a phase transition. Measurements of this phase transition below the transition temperature are made using hard mode infrared spectroscopy.
1432-2021
14322021
Springer
shingle_title_1 Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
shingle_title_2 Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
shingle_title_3 Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
shingle_title_4 Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
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source_archive Springer Online Journal Archives 1860-2000
timestamp 2024-05-06T09:43:36.115Z
titel Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
titel_suche Rigid Unit Modes in disordered nepheline: a study of a displacive incommensurate phase transition
topic V
TE-TZ
U
uid nat_lic_papers_NLM202920666