Research output: Contribution to Journal/Magazine › Journal article › peer-review
Topological defects and goldstone excitations in domain walls between ferromagnetic quantum Hall liquids. / Falko, Vladimir; Iordanskii, S V .
In: Physical review letters, Vol. 82, No. 2, 11.01.1999, p. 402-405.Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Topological defects and goldstone excitations in domain walls between ferromagnetic quantum Hall liquids
AU - Falko, Vladimir
AU - Iordanskii, S V
PY - 1999/1/11
Y1 - 1999/1/11
N2 - It is shown that the low-energy spectrum of a ferromagnetic quantum Hall liquid in a system with a multidomain structure generated by an inhomogeneous bare Zeeman splitting epsilon(z) is formed by excitations localized at the walls between domains. For a steplike epsilon(z)(r) the domain wall spectrum includes a spin wave with a linear dispersion and a small gap due to spin-orbit coupling and low-energy topological defects. The latter are charged and may dominate the transport under conditions that allow percolation through the network of domain walls.
AB - It is shown that the low-energy spectrum of a ferromagnetic quantum Hall liquid in a system with a multidomain structure generated by an inhomogeneous bare Zeeman splitting epsilon(z) is formed by excitations localized at the walls between domains. For a steplike epsilon(z)(r) the domain wall spectrum includes a spin wave with a linear dispersion and a small gap due to spin-orbit coupling and low-energy topological defects. The latter are charged and may dominate the transport under conditions that allow percolation through the network of domain walls.
U2 - 10.1103/PhysRevLett.82.402
DO - 10.1103/PhysRevLett.82.402
M3 - Journal article
VL - 82
SP - 402
EP - 405
JO - Physical review letters
JF - Physical review letters
SN - 1079-7114
IS - 2
ER -