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Interaction of two-dimensional electrons and polar optical phonons in a superlattice
A250 537
Surface Scwnce 170 (1986) 537-541 North-Holland.
Amsterdam
INTERACTION OF TWO-DIMENSIONAL, ELECTRONS AND POLAR OPTICAL PHONONS IN A SUPERLATTICE N. SAWAKI
I‘hr
2D
electrun--quasi
2D
phonon
mternctl~ln
account of the confinement of the LO-phonon
tn d \uprrlatttcr
15 btudted hy taking
mode. i‘he form factor I.\ decomposed into
phonon lnteractmn term and (ill Interface phonon interaction
term
The propertx5
Into
(I) layer
of these terms
are discuwzd.
542
Surface Sctence 17tl ( I YX6) 542 Nclrth-Holland.
FREQUENCY SHIFTED POLARON COUPLING IN GalnAs HETEROSTRUCTURES L.C. BRUNEL “. S. HUANT L1.R.J. NICHOLAS .i.t’. M.A. HOPKINS M.A. BRUMMELL h, K. KARRAI K.Y. CHENG ’ and A.Y. CHO ’
“. J.C. PORTAL,“.
Frequency dependent cyclotron resonance tneasurtmrnt~ As
and (;a,,,,In,,,?As~AI,,,,In,,,L
heterostructure+.
54X
.4msterdam
M. RA%E<;HI
“. I’_
are reported on
Dixontinuities
In the rffecti\r
ma\\ are
observed at two frequenctea. due to resonant polaron coupling to the two optic phonon mode\ In GaInAs.
In heterojunctions
the coupling occurs at the frequencies of the TO phonon\. in ct>ntra\t
to bulk materials, and the relative strength of the coupling to the two tnodes 15 different systems.
In more lightly doped superlattices
the coupling 15 stronger.
in the two
leading to larger shaft\ In the
effective mass. and nccur~ at the LO phonon frequenctr~. Thtb hehavtour IS discuswd ,n term\ of possible changes in the screening and polarisation
Surface Science 170 (lY86) North-Holland.
of the opttc ph~xmn mode\.
549-555
549
Amsterdam
TWO-DIMENSIONAL MAGNETO-POLARONS IN GaAs-GaAIAs HETEROSTRUCTURES Rudolf
LASSNIG
A consistent.
parameter-free analyst5 of 2D magneto-polaron
to the GaAs- GaAIAs
system.
lowest order perturbation
Experimental
theory. With
results
L)f xveral
effects I\ presented and apphed groupa are well descrthed wthln
the dynamical p<)larlaahilitv of the electron gas Included.
polaron pinning to the TO phonon rnurg\ I\ expected
Surface Scwnce 170 (1986) 537-541 North-Holland.
Amsterdam
INTERACTION OF TWO-DIMENSIONAL, ELECTRONS AND POLAR OPTICAL PHONONS IN A SUPERLATTICE N. SAWAKI
I‘hr
2D
electrun--quasi
2D
phonon
mternctl~ln
account of the confinement of the LO-phonon
tn d \uprrlatttcr
15 btudted hy taking
mode. i‘he form factor I.\ decomposed into
phonon lnteractmn term and (ill Interface phonon interaction
term
The propertx5
Into
(I) layer
of these terms
are discuwzd.
542
Surface Sctence 17tl ( I YX6) 542 Nclrth-Holland.
FREQUENCY SHIFTED POLARON COUPLING IN GalnAs HETEROSTRUCTURES L.C. BRUNEL “. S. HUANT L1.R.J. NICHOLAS .i.t’. M.A. HOPKINS M.A. BRUMMELL h, K. KARRAI K.Y. CHENG ’ and A.Y. CHO ’
“. J.C. PORTAL,“.
Frequency dependent cyclotron resonance tneasurtmrnt~ As
and (;a,,,,In,,,?As~AI,,,,In,,,L
heterostructure+.
54X
.4msterdam
M. RA%E<;HI
“. I’_
are reported on
Dixontinuities
In the rffecti\r
ma\\ are
observed at two frequenctea. due to resonant polaron coupling to the two optic phonon mode\ In GaInAs.
In heterojunctions
the coupling occurs at the frequencies of the TO phonon\. in ct>ntra\t
to bulk materials, and the relative strength of the coupling to the two tnodes 15 different systems.
In more lightly doped superlattices
the coupling 15 stronger.
in the two
leading to larger shaft\ In the
effective mass. and nccur~ at the LO phonon frequenctr~. Thtb hehavtour IS discuswd ,n term\ of possible changes in the screening and polarisation
Surface Science 170 (lY86) North-Holland.
of the opttc ph~xmn mode\.
549-555
549
Amsterdam
TWO-DIMENSIONAL MAGNETO-POLARONS IN GaAs-GaAIAs HETEROSTRUCTURES Rudolf
LASSNIG
A consistent.
parameter-free analyst5 of 2D magneto-polaron
to the GaAs- GaAIAs
system.
lowest order perturbation
Experimental
theory. With
results
L)f xveral
effects I\ presented and apphed groupa are well descrthed wthln
the dynamical p<)larlaahilitv of the electron gas Included.
polaron pinning to the TO phonon rnurg\ I\ expected