Published July 2008 | Version v1
Journal article Metadata-only

Insulator-metal transition in Pb1-xGexTe doped with chromium under pressure

Creators

  • 1. Faculty of Physics, Moscow State University, 119992 Moscow (Russian Federation)
  • 2. Institute of Material Science Problems, 274001 Chernovtsy (Ukraine)

Description

The galvanomagnetic effects in the n-Pb1-xGexTe (x=0.02-0.13) alloys, doped with chromium, at the temperatures in the range of 4.2≤T≤300 K and under hydrostatic compression of up to 17 kbar have been investigated. The insulator-metal transition, induced by pressure in Pb1-xGexTe: Cr (x=0.10) alloy, was revealed. Using the experimental data in the frame of two-band Kane dispersion relation the pressure dependences of electron concentration and Fermi energy were calculated. The pressure coefficient of chromium deep level energy was obtained and the diagram of the electronic structure reconstruction under pressure was proposed

Availability note (English)

Available from http://dx.doi.org/10.1088/1742-6596/121/3/032003

Additional details

Identifiers

DOI
10.1088/1742-6596/121/3/032003;

Publishing Information

Journal Title
Journal of Physics. Conference Series (Online)
Journal Volume
121
Journal Issue
3
Journal Page Range
[4 p.]
ISSN
1742-6596

Conference

Title
Joint 21. AIRAPT and 45. EHPRG international conference on high pressure science and technology
Dates
17-21 Sep 2007
Place
Catania (Italy)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
40045333
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
CHROMIUM; COMPRESSION; CONCENTRATION RATIO; DISPERSION RELATIONS; DOPED MATERIALS; ELECTRONIC STRUCTURE; ELECTRONS; FERMI LEVEL; GALVANOMAGNETIC EFFECT; GERMANIUM TELLURIDES; LEAD TELLURIDES; PHASE DIAGRAMS; PHASE TRANSFORMATIONS; PRESSURE COEFFICIENT; PRESSURE DEPENDENCE; PRESSURE RANGE MEGA PA; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TEMPERATURE RANGE 0065-0273 K
Descriptors DEC
CHALCOGENIDES; DIAGRAMS; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; ELEMENTS; ENERGY LEVELS; FERMIONS; GERMANIUM COMPOUNDS; INFORMATION; LEAD COMPOUNDS; LEPTONS; MATERIALS; METALS; PRESSURE RANGE; REACTIVITY COEFFICIENTS; TELLURIDES; TELLURIUM COMPOUNDS; TEMPERATURE RANGE; TRANSITION ELEMENTS