CHARGE DENSITY ANOMALIES IN Si AND InSb PRECEDING THE HIGH PRESSURE TRANSITION.

D. R. Yoder-Short; R. Colella; B. A. Weinstein

CHARGE DENSITY ANOMALIES IN Si AND InSb PRECEDING THE HIGH PRESSURE TRANSITION.

D. R. Yoder-Short
, R. Colella
, B. A. Weinstein

Physics

Research output: Contribution to journal › Conference article › peer-review

1 Scopus citations

Abstract

The intensity of the (222) forbidden x-ray reflection in Si and InSb was measured as a function of high hydrostatic pressure. A few kbars prior to the pressure induced transformation to the metallic beta -Sn structure the (222) intensity decreases sharply. This anomalous behavior is interpreted as being due either to smearing of the valence bond-charge in anticipation of the metallic state, or to increased anharmonicity in the thermal vibrations. The role of zone boundary TA phonons is considered.

Original language	English
Pages (from-to)	564-566
Number of pages	3
Journal	Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics
Volume	117-118
Issue number	Pt II
State	Published - 1982
Event	Proc of the Int Conf on the Phys of Semicond, 16th - Montpellier, Fr Duration: Sep 6 1982 → Sep 10 1982

Cite this

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title = "CHARGE DENSITY ANOMALIES IN Si AND InSb PRECEDING THE HIGH PRESSURE TRANSITION.",

abstract = "The intensity of the (222) forbidden x-ray reflection in Si and InSb was measured as a function of high hydrostatic pressure. A few kbars prior to the pressure induced transformation to the metallic beta -Sn structure the (222) intensity decreases sharply. This anomalous behavior is interpreted as being due either to smearing of the valence bond-charge in anticipation of the metallic state, or to increased anharmonicity in the thermal vibrations. The role of zone boundary TA phonons is considered.",

author = "Yoder-Short, \{D. R.\} and R. Colella and Weinstein, \{B. A.\}",

year = "1982",

language = "English",

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pages = "564--566",

journal = "Physica B: Physics of Condensed Matter \& C: Atomic, Molecular and Plasma Physics, Optics",

issn = "0378-4363",

publisher = "North-Holland Publ Co",

number = "Pt II",

note = "Proc of the Int Conf on the Phys of Semicond, 16th ; Conference date: 06-09-1982 Through 10-09-1982",

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T1 - CHARGE DENSITY ANOMALIES IN Si AND InSb PRECEDING THE HIGH PRESSURE TRANSITION.

AU - Yoder-Short, D. R.

AU - Colella, R.

AU - Weinstein, B. A.

PY - 1982

Y1 - 1982

N2 - The intensity of the (222) forbidden x-ray reflection in Si and InSb was measured as a function of high hydrostatic pressure. A few kbars prior to the pressure induced transformation to the metallic beta -Sn structure the (222) intensity decreases sharply. This anomalous behavior is interpreted as being due either to smearing of the valence bond-charge in anticipation of the metallic state, or to increased anharmonicity in the thermal vibrations. The role of zone boundary TA phonons is considered.

AB - The intensity of the (222) forbidden x-ray reflection in Si and InSb was measured as a function of high hydrostatic pressure. A few kbars prior to the pressure induced transformation to the metallic beta -Sn structure the (222) intensity decreases sharply. This anomalous behavior is interpreted as being due either to smearing of the valence bond-charge in anticipation of the metallic state, or to increased anharmonicity in the thermal vibrations. The role of zone boundary TA phonons is considered.

UR - https://www.scopus.com/pages/publications/0020101443

M3 - Conference article

AN - SCOPUS:0020101443

SN - 0378-4363

VL - 117-118

SP - 564

EP - 566

JO - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics

JF - Physica B: Physics of Condensed Matter & C: Atomic, Molecular and Plasma Physics, Optics

IS - Pt II

T2 - Proc of the Int Conf on the Phys of Semicond, 16th

Y2 - 6 September 1982 through 10 September 1982

ER -

CHARGE DENSITY ANOMALIES IN Si AND InSb PRECEDING THE HIGH PRESSURE TRANSITION.

Abstract

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