Commensurate-incommensurate transitions of quantum hall stripe states in double quantum well systems

Physical Review B - Condensed Matter and Materials Physics

Volumn 66, Issue 20, 2002, Pages 2053151-20531517

  Cote R ^a   Fertig, H A ^b   Bourassa, J ^a   Bouchiha, D ^a  

^a UNIVERSITÉ DE SHERBROOKE   (Canada)

^b NONE

Author keywords

[No Author keywords available]

Indexed keywords

ARTICLE; DENSITY; ELECTRON; GAS; LIQUID; MAGNETIC FIELD; OSCILLATION; PHASE TRANSITION; QUANTUM MECHANICS;

EID: 0037113426     PISSN: 01631829     EISSN: None     Source Type: Journal    
DOI: None     Document Type: Article

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25. Further evidence of this is found in the static Hartree-Fock solutions, which show a tendency to develop weak oscillations in the in-plane components.of the pseudospin just before the transition to the stripe phase, which we interpret as evidence of the SLS instability. These oscillations have only a very small effect on the energy.
26. CL(q) is gapless. But since the CL is always unstable to the IL in this limit, such gaplessness is never observable in the CL state.
27. The one exception to this is the collective-mode dispersion for wave vectors parallel to the stripes in the CSP. Our TDHFA results indicate a quadratic collective-mode dispersion, whereas the effective theory constructed in Ref. 15 has a linear dispersion.
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