Coherent terahertz magneto-spectroscopy of ultrahigh-mobility two-dimensional electron gases

Qi Zhang; Takashi Arikawa; John Reno; Wei Pan; John Watson; Michael Manfra; Junichiro Kono

Coherent terahertz magneto-spectroscopy of ultrahigh-mobility two-dimensional electron gases

Qi Zhang
, Takashi Arikawa
, John Reno
, Wei Pan
, John Watson
, Michael Manfra
, Junichiro Kono

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

1 Scopus citations

Abstract

We study the coherent dynamics of cyclotron resonance (CR) in ultrahigh-mobility two-dimensional electron gases via time-domain terahertz magneto-spectroscopy. The CR decoherence time increases with decreasing temperature but saturates below 10 K. We observe an increase in both CR decoherence rate and CR mass when holes are created via optical pumping; the latter indicates a breakdown of Kohn's theorem due to electron-hole Coulomb interactions. © OSA 2013.

Original language	English
Title of host publication	CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013
State	Published - Nov 21 2013
Externally published	Yes

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@inproceedings{203d5e0b5cb4431db73c396493c7afcd,

title = "Coherent terahertz magneto-spectroscopy of ultrahigh-mobility two-dimensional electron gases",

abstract = "We study the coherent dynamics of cyclotron resonance (CR) in ultrahigh-mobility two-dimensional electron gases via time-domain terahertz magneto-spectroscopy. The CR decoherence time increases with decreasing temperature but saturates below 10 K. We observe an increase in both CR decoherence rate and CR mass when holes are created via optical pumping; the latter indicates a breakdown of Kohn's theorem due to electron-hole Coulomb interactions. {\textcopyright} OSA 2013.",

author = "Qi Zhang and Takashi Arikawa and John Reno and Wei Pan and John Watson and Michael Manfra and Junichiro Kono",

year = "2013",

month = nov,

day = "21",

language = "English",

isbn = "9781557529725",

booktitle = "CLEO: QELS\_Fundamental Science, CLEO:QELS FS 2013",

}

TY - GEN

T1 - Coherent terahertz magneto-spectroscopy of ultrahigh-mobility two-dimensional electron gases

AU - Zhang, Qi

AU - Arikawa, Takashi

AU - Reno, John

AU - Pan, Wei

AU - Watson, John

AU - Manfra, Michael

AU - Kono, Junichiro

PY - 2013/11/21

Y1 - 2013/11/21

N2 - We study the coherent dynamics of cyclotron resonance (CR) in ultrahigh-mobility two-dimensional electron gases via time-domain terahertz magneto-spectroscopy. The CR decoherence time increases with decreasing temperature but saturates below 10 K. We observe an increase in both CR decoherence rate and CR mass when holes are created via optical pumping; the latter indicates a breakdown of Kohn's theorem due to electron-hole Coulomb interactions. © OSA 2013.

AB - We study the coherent dynamics of cyclotron resonance (CR) in ultrahigh-mobility two-dimensional electron gases via time-domain terahertz magneto-spectroscopy. The CR decoherence time increases with decreasing temperature but saturates below 10 K. We observe an increase in both CR decoherence rate and CR mass when holes are created via optical pumping; the latter indicates a breakdown of Kohn's theorem due to electron-hole Coulomb interactions. © OSA 2013.

UR - https://www.scopus.com/pages/publications/84887659288

M3 - Conference contribution

SN - 9781557529725

BT - CLEO: QELS_Fundamental Science, CLEO:QELS FS 2013

ER -

Coherent terahertz magneto-spectroscopy of ultrahigh-mobility two-dimensional electron gases

Abstract

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