New “coherent” bilayer quantum Hall states

Sawada, A.; Ezawa, Zyun F.; Ohno, Hideo; Horíkoshi, Yoshiji; Ohno, Y.; Kishimoto, S.; Matsukura, F.; Urayama, A; Kumada, N.

doi:10.1016/b978-044450091-5/50044-0

Cited by 1 publication

(4 citation statements)

References 7 publications

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“…We conclude that elementary excitations are monolayer skyrmions. In the low-density data [7] it is found to decrease anomalously at ν = 1 and ν = 2, as is the phenomenon discovered by Murphy et al [13] at ν = 1: It is a behavior intrinsic to the interlayer coherent state in the BLQH system.…”

supporting

confidence: 57%

“…The third technique is to tilt the sample with the perpendicular magnetic field B ⊥ fixed. In the high-density data [7] the activation energy is found to increase at ν = 2 and 2/3 as normally as in the monolayer system: Indeed, we can fit the data by the monolayer skyrmion formula (17). We conclude that elementary excitations are monolayer skyrmions.…”

mentioning

confidence: 77%

“…It carries the charge 2e/m. Our theoretical analysis accounts for recent experimental data due to Sawada et al [6,7]. Throughout the paper we use the natural units = c = 1.…”

mentioning

confidence: 86%

“…The Hilbert space H LLL is defined by the LLL condition (7). In the semiclassical approximation the wave function is given by ( 9) at ν ≤ 1.…”

Section: X) the Coulomb Energy E +mentioning

confidence: 99%

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Spin-Pseudospin Coherence andCP3Skyrmions in Bilayer Quantum Hall Ferromagnets

Ezawa

1999

Phys. Rev. Lett.

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We analyze bilayer quantum Hall ferromagnets, whose underlying symmetry group is SU(4). Spinpseudospin coherence develops spontaneously when the total electron density is low enough. The quasiparticles are CP 3 Skyrmions. One Skyrmion induces charge modulations on both layers. At the filling factor n 2͞m one elementary excitation consists of a pair of Skyrmions and its charge is 2e͞m. Recent experimental data due to Sawada et al. [Phys. Rev. Lett. 80, 4534 (1998)] support this conclusion. [S0031-9007(99)08992-9]

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supporting

confidence: 57%

mentioning

confidence: 77%

“…It carries the charge 2e/m. Our theoretical analysis accounts for recent experimental data due to Sawada et al [6,7]. Throughout the paper we use the natural units = c = 1.…”

mentioning

confidence: 86%

“…The Hilbert space H LLL is defined by the LLL condition (7). In the semiclassical approximation the wave function is given by ( 9) at ν ≤ 1.…”

Section: X) the Coulomb Energy E +mentioning

confidence: 99%

See 2 more Smart Citations