Absorption edge in liquid iodine under pressure

被引：7

作者：

Buontempo, U

Postorino, P

Nardone, M

机构：

[1] UNIV ROMA LA SAPIENZA, DIPARTIMENTO FIS, I-00185 ROME, ITALY

[2] UNIV AQUILA, DIPARTIMENTO FIS, I-67010 LAQUILA, ITALY

[3] UNIV ROMA 3, DIPARTIMENTO FIS, I-00146 ROME, ITALY

来源：

JOURNAL OF NON-CRYSTALLINE SOLIDS | 1996年 / 205卷

关键词：

D O I：

10.1016/S0022-3093(96)00432-2

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Absorption coefficient measurements of the optical bands of liquid iodine near the triple point and of the band edge along the melting curve to 1.52 GPa and 683 K are reported. The intense absorption observed in the near ultraviolet is discussed in terms of intramolecular absorption bands. The absorption edge is dominated in the 4000 to 12000 cm(-1) range by exponential tails of the 'Urbach' type with strongly temperature dependent slopes and amplitudes. The possibility of connecting the evolution of this spectral feature with the conductivity jump recently observed in liquid iodine around 3 GPa is discussed.

引用

页码：110 / 114

页数：5

共 11 条

[1] Brazhkin V. V., 1991, HIGH PRESS RES, V6, P363, DOI [10.1080/08957959208201044, DOI 10.1080/08957959208201044]
[2] BUONTEMPO U, 1995, PHYS REV B, V51, P874
[3] A CELL OF VARIABLE THICKNESS FOR OPTICAL STUDIES OF HIGHLY ABSORBING LIQUIDS
DEGIORGI, E
POSTORINO, P
NARDONE, M
[J]. MEASUREMENT SCIENCE AND TECHNOLOGY, 1995, 6 (07) : 929 - 931
[4] Letoullec R., 1988, HIGH PRESSURE RES, V1, DOI [DOI 10.1080/08957958808202482, 10.1080/08957958808202482]
[5] Moss TS, 1952, Photoconductivity in the elements
[6] Mott N. F., 1979, ELECT PROCESSES NONC
[7] Mulliken R.S., 1969, MOL COMPLEXES
[8] PICCITTO G, IN PRESS HIGH PRESSU
[9] PUCCI R, 1991, MOL SYSTEMS HIGH PRE
[10] APPROACH TO METALLIC STATE AS OBTAINED FROM OPTICAL AND ELECTRICAL MEASUREMENTS
RIGGLEMAN, BM
DRICKAMER, HG
[J]. JOURNAL OF CHEMICAL PHYSICS, 1963, 38 (11) : 2721 - &

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