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Titolo:
PRESSURE-DEPENDENCE OF THE ELECTRON-DENSITY IN SOLID IODINE BY THE MAXIMUM-ENTROPY METHOD
Autore:
FUJIHISA H; FUJII Y; TAKEMURA K; SHIMOMURA O; NELMES RJ; MCMAHON MI;
Indirizzi:
NATL INST MAT & CHEM RES,1-1 HIGASHI TSUKUBA IBARAKI 305 JAPAN UNIV TOKYO,INST SOLID STATE PHYS,MINATO KU TOKYO 106 JAPAN NATL INST RES INORGAN MAT TSUKUBA IBARAKI 305 JAPAN NATL LAB HIGH ENERGY PHYS,PHOTON FACTORY TSUKUBA IBARAKI 305 JAPAN UNIV EDINBURGH,DEPT PHYS & ASTRON EDINBURGH EH9 3JZ MIDLOTHIAN SCOTLAND
Titolo Testata:
High pressure research
fascicolo: 4-6, volume: 14, anno: 1996,
pagine: 335 - 340
SICI:
0895-7959(1996)14:4-6<335:POTEIS>2.0.ZU;2-E
Fonte:
ISI
Lingua:
ENG
Soggetto:
MOLECULAR DISSOCIATION; DIFFRACTION;
Keywords:
IODINE; MEM; HIGH PRESSURE; METALLIZATION; MOLECULAR DISSOCIATION; X-RAY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
13
Recensione:
Indirizzi per estratti:
Citazione:
H. Fujihisa et al., "PRESSURE-DEPENDENCE OF THE ELECTRON-DENSITY IN SOLID IODINE BY THE MAXIMUM-ENTROPY METHOD", High pressure research, 14(4-6), 1996, pp. 335-340

Abstract

A direct observation of the electron density of solid iodine has beenattempted in order to study the electron-density delocalization process due to pressure-induced metallization. A high-accuracy x-ray powderdiffraction measurement was carried out with a diamond anvil cell andan imaging plate on a synchrotron-radiation source. The maximum entropy method was employed to analyze the data and to obtain electron-density maps under pressures up to 20 GPa. The electron density between adjacent iodine molecules has been shown to gradually increase with increasing pressure; also, a two-dimensional network is formed at a density level of 0.2 e/Angstrom(3) at around 16 GPa.

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Documento generato il 21/09/20 alle ore 05:45:31