Activation study of collective excitations of the soliton-lattice phase in the ν=1 double-layer quantum Hall state

D. Terasawa, S. Kozumi, A. Fukuda, M. Morino, K. Iwata, N. Kumada, Y. Hirayama, Z. F. Ezawa, A. Sawada

研究成果: Article査読

7 被引用数 (Scopus)

抄録

We investigate thermal excitations of the pseudospin soliton lattice in the double-layer quantum Hall (QH) state at total Landau-level filling factor ν=1 by detailed measurements of the activation energy gap, where the pseudospin represents the layer degree of freedom. In a tilted magnetic field, the activation energy gap of the double-layer ν=1 QH state shows a minimum near the phase transition point between the commensurate and incommensurate states. From a comparison of the in-plane field dependence of the activation energy gap with theories, we suggest that the minimum in the activation energy gap is due to collective modes of the soliton lattice.

本文言語English
論文番号073303
ジャーナルPhysical Review B - Condensed Matter and Materials Physics
81
7
DOI
出版ステータスPublished - 2010 2 18

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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