Cyclotron mass of two-dimensional holes in (100) oriented GaAsAlGaAs heterostructures

T. M. Lu; Z. F. Li; D. C. Tsui; M. J. Manfra; L. N. Pfeiffer; K. W. West

doi:10.1063/1.2830016

Cyclotron mass of two-dimensional holes in (100) oriented GaAsAlGaAs heterostructures

T. M. Lu, Z. F. Li, D. C. Tsui, M. J. Manfra, L. N. Pfeiffer, K. W. West

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17 Scopus citations

Abstract

Microwave cyclotron resonance of low-density high-mobility two-dimensional hole gases of different densities in (100) oriented GaAsAlGaAs heterostructures has been measured at 4.2 K. The measurements show that the hole effective mass depends strongly on the confining potential. For holes in a 20 nm quantum well, the cyclotron mass decreases from 0.48 me at density p=6.9× 1010 cm2 to 0.29 me at p=0.8× 1010 cm2. The cyclotron mass for holes confined at a heterojunction is fairly insensitive to the density and has a value of approximately 0.5 me.

Original language	English (US)
Article number	012109
Journal	Applied Physics Letters
Volume	92
Issue number	1
DOIs	https://doi.org/10.1063/1.2830016
State	Published - 2008
Externally published	Yes

All Science Journal Classification (ASJC) codes

Physics and Astronomy (miscellaneous)

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10.1063/1.2830016

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title = "Cyclotron mass of two-dimensional holes in (100) oriented GaAsAlGaAs heterostructures",

abstract = "Microwave cyclotron resonance of low-density high-mobility two-dimensional hole gases of different densities in (100) oriented GaAsAlGaAs heterostructures has been measured at 4.2 K. The measurements show that the hole effective mass depends strongly on the confining potential. For holes in a 20 nm quantum well, the cyclotron mass decreases from 0.48 me at density p=6.9× 1010 cm2 to 0.29 me at p=0.8× 1010 cm2. The cyclotron mass for holes confined at a heterojunction is fairly insensitive to the density and has a value of approximately 0.5 me.",

author = "Lu, {T. M.} and Li, {Z. F.} and Tsui, {D. C.} and Manfra, {M. J.} and Pfeiffer, {L. N.} and West, {K. W.}",

year = "2008",

doi = "10.1063/1.2830016",

language = "English (US)",

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journal = "Applied Physics Letters",

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T1 - Cyclotron mass of two-dimensional holes in (100) oriented GaAsAlGaAs heterostructures

AU - Lu, T. M.

AU - Li, Z. F.

AU - Tsui, D. C.

AU - Manfra, M. J.

AU - Pfeiffer, L. N.

AU - West, K. W.

PY - 2008

Y1 - 2008

N2 - Microwave cyclotron resonance of low-density high-mobility two-dimensional hole gases of different densities in (100) oriented GaAsAlGaAs heterostructures has been measured at 4.2 K. The measurements show that the hole effective mass depends strongly on the confining potential. For holes in a 20 nm quantum well, the cyclotron mass decreases from 0.48 me at density p=6.9× 1010 cm2 to 0.29 me at p=0.8× 1010 cm2. The cyclotron mass for holes confined at a heterojunction is fairly insensitive to the density and has a value of approximately 0.5 me.

AB - Microwave cyclotron resonance of low-density high-mobility two-dimensional hole gases of different densities in (100) oriented GaAsAlGaAs heterostructures has been measured at 4.2 K. The measurements show that the hole effective mass depends strongly on the confining potential. For holes in a 20 nm quantum well, the cyclotron mass decreases from 0.48 me at density p=6.9× 1010 cm2 to 0.29 me at p=0.8× 1010 cm2. The cyclotron mass for holes confined at a heterojunction is fairly insensitive to the density and has a value of approximately 0.5 me.

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DO - 10.1063/1.2830016

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JF - Applied Physics Letters

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ER -

Cyclotron mass of two-dimensional holes in (100) oriented GaAsAlGaAs heterostructures

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