2010
DOI: 10.1134/s0021364010230086
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Terahertz spectroscopy of quantum-well narrow-bandgap HgTe/CdTe-based heterostructures

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Cited by 28 publications
(11 citation statements)
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“…The latter enables us to measure the spectrum of interband photoconductivity (Figure 6 ; cf. [ 13 ]). One can see a distinct low-frequency edge of the conductivity at 380 cm -1 (47 meV).…”
Section: Resultsmentioning
confidence: 99%
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“…The latter enables us to measure the spectrum of interband photoconductivity (Figure 6 ; cf. [ 13 ]). One can see a distinct low-frequency edge of the conductivity at 380 cm -1 (47 meV).…”
Section: Resultsmentioning
confidence: 99%
“…An alternative way to tune the QW structure is to admix Cd into a wide HgTe QW. In [ 13 , 14 ], 30-nm-wide Hg 1- x Cd x Te QWs with a Cd content x > 0.13 are shown to have normal band structure. However, properties of such wells are not identical to those of normal-band-structure HgTe QWs with the same bandgap, namely wide HgCdTe QWs demonstrate indirect band structure, i.e., the side maximum in the valence band exceeds that in the center of the Brillouin zone.…”
Section: Introductionmentioning
confidence: 99%
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“…Как известно, изменять энергию межзонных пере-ходов в структурах с КЯ на основе HgCdTe можно как варьируя толщину ямы, так и изменяя долю Сd в ней [30,31]. Для получения СИ в области 6−14 мкм тол-щина КЯ из чистого HgTe должна составлять несколь-ко нм.…”
Section: результаты и обсуждениеunclassified
“…Structures of this kind have been studied by magnetotransport methods [2] and by cyclotron resonance techniques in the microwave spectral range [3]. It has also been reported that photoconductivity is observed in struc tures of this kind [4][5][6][7]. Two different mechanisms that account for the origin of the photoconductivity signal have been suggested, namely, the bolometric [5] and cyclotron resonance mechanisms [4].…”
mentioning
confidence: 99%