TY - JOUR

T1 - Electronic structure of a double fractional quantum Hall system of spin- 1 2 electrons

AU - Nakajima, T.

AU - Aoki, H.

N1 - Funding Information:
We are grateful to Prof. D. Yoshioka for valuable discussions. Numerical calculations were done on HITAC $820 in the Computer Centre, Universityo f Tokyo. This work is in part supportedb y a Grant-in-Aid from the Ministry of Education, Science and Culture, Japan.

PY - 1993/2

Y1 - 1993/2

N2 - The ground state of a double-layer fractional quantum Hall system of spin- 1 2 electrons is obtained numerically for finite systems for various values of the total Landau level filling v, as a function of the layer separation d. The inclusion of spin degrees of freedom is shown to give rise to versatile ground states, where the total spin and the inter-layer correlation are linked and change sensitively with v and d. A typical example is an Stot=0 ground state for v= 4 7 having a large overlap with the ψ3,2,1 trial function, which has no counterpart in single-layer systems.

AB - The ground state of a double-layer fractional quantum Hall system of spin- 1 2 electrons is obtained numerically for finite systems for various values of the total Landau level filling v, as a function of the layer separation d. The inclusion of spin degrees of freedom is shown to give rise to versatile ground states, where the total spin and the inter-layer correlation are linked and change sensitively with v and d. A typical example is an Stot=0 ground state for v= 4 7 having a large overlap with the ψ3,2,1 trial function, which has no counterpart in single-layer systems.

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U2 - 10.1016/0921-4526(93)90327-3

DO - 10.1016/0921-4526(93)90327-3

M3 - Article

AN - SCOPUS:0027544266

SN - 0921-4526

VL - 184

SP - 91

EP - 94

JO - Physica B: Condensed Matter

JF - Physica B: Condensed Matter

IS - 1-4

ER -