Published March 2007 | Version v1
Journal article Metadata-only

Resonance modulation of intersubband electron-electron interaction in AlSb(δ-Te)/InAs(δ-Te) quantum well by quantizing magnetic field

Creators

  • 1. Ryazanskij Gosudarstvennyj Pedagogicheskij Univ. im. S.A. Esenina, Ryazan' (Russian Federation)
  • 2. Department of Electrical Engineering and Center of Solid State Electronic Research, Arizona State Univ., Tempe (United States)

Description

The amplitude-frequency modulation of oscillations of the magnetoresistance of 2D electrons in an AlSb(δ - Te)/InAs/AsSb(δ - Te) quantum well is studied. In the dependence of the oscillation amplitude δ(1/B) at T=const, regions of negative Dingle temperature are observed. The anomalies in the δ(1/B) dependence at T=const are attributed to the fact that the quantizing magnetic field resonantly induces intersubband electron-electron interaction between the 2D electrons of the ground size-quantization subband and excited sub- band. The resonance fields B and the times corresponding to the collision-related broadening of the Landau levels are estimated. The concentration threshold of filling of the excited size-quantization subband is established at the level of ns ∼ 8 x 1011 cm-2

Abstract (Russian)

Изучена амплитудно-частотная модуляция осцилляций магнитосопротивления 2D электронов в квантовой яме AlSb(δ - Te)/InAs/AsSb(δ - Te). На магнитополевой зависимости амплитуды осцилляций δ(1/B) при T=constant обнаружены участки отрицательной температуры Дингла. Аномалии на зависимости δ(1/B) при T=constant вызваны резонансным включением квантующим магнитным полем межподзонного электрон-электронного взаимодействия 2D электронов основной и возбужденной подзон размерного квантования. Выполнены оценки величин резонансных полей В и времени столкновительного уширения уровней Ландау. Установлен концентрационный порог заполнения возбужденной подзоны размерного квантования ns ∼ 8 x 1011 см-2

Additional details

Additional titles

Original title (Russian)
Резонансная модуляция магнитным полем межподзонного электрон-электронного взаимодействия в квантовой яме AlSb(δ-Те)/InAs(δ-Те)

Publishing Information

Journal Title
Fizika i Tekhnika Poluprovodnikov
Journal Volume
41
Journal Issue
3
Journal Page Range
p. 338-345
ISSN
0015-3222
CODEN
FTPPA4

INIS

Country of Publication
Russian Federation
Country of Input or Organization
Russian Federation
INIS RN
39023190
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ALUMINIUM COMPOUNDS; ANTIMONIDES; CONCENTRATION RATIO; ELECTRONIC STRUCTURE; EXPERIMENTAL DATA; FOURIER ANALYSIS; HETEROJUNCTIONS; INDIUM ARSENIDES; LINE BROADENING; MAGNETIC FIELDS; MAGNETORESISTANCE; OSCILLATIONS; QUANTUM WELLS; RELAXATION TIME; SOLID SOLUTIONS; TELLURIUM ADDITIONS; TEMPERATURE DEPENDENCE; TEMPERATURE RANGE 0000-0013 K; TEMPERATURE RANGE 0013-0065 K; TWO-DIMENSIONAL CALCULATIONS
Descriptors DEC
ALLOYS; ANTIMONY COMPOUNDS; ARSENIC COMPOUNDS; ARSENIDES; DATA; DIMENSIONLESS NUMBERS; DISPERSIONS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; HOMOGENEOUS MIXTURES; INDIUM COMPOUNDS; INFORMATION; MIXTURES; NANOSTRUCTURES; NUMERICAL DATA; PHYSICAL PROPERTIES; PNICTIDES; SEMICONDUCTOR JUNCTIONS; SOLUTIONS; TELLURIUM ALLOYS; TEMPERATURE RANGE

Optional Information

Notes
23 refs., 6 figs., 3 tabs.