Pinning-mode resonance of a Skyrme crystal near Landau-level filling factor ν=1.
Microwave pinning-mode resonances found around integer quantum Hall effects, are a signature of crystallized quasiparticles or holes. Application of in-plane magnetic field to these crystals, increasing the Zeeman energy, has negligible effect on the resonances just below Landau-level filling ν=2, but increases the pinning frequencies near ν=1, particularly for smaller quasiparticle or hole densities. The charge dynamics near ν=1, characteristic of a crystal order, are affected by spin, in a manner consistent with a Skyrme crystal.
Zhu
Han
H
Princeton University, Princeton, New Jersey 08544, USA.
Sambandamurthy
G
G
Chen
Yong P
YP
Jiang
P
P
Engel
L W
LW
Tsui
D C
DC
Pfeiffer
L N
LN
West
K W
KW