Landau-level splitting in graphene in high magnetic fields.

@article{Zhang2006LandaulevelSI,
  title={Landau-level splitting in graphene in high magnetic fields.},
  author={Y. Zhang and Z. Jiang and Joshua P. Small and Meninder S. Purewal and Y.-W. Tan and Mina Fazlollahi and Joel D. Chudow and John A. Jaszczak and Horst L. Stormer and Philip Kim},
  journal={Physical review letters},
  year={2006},
  volume={96 13},
  pages={
          136806
        }
}
The quantum Hall (QH) effect in two-dimensional electrons and holes in high quality graphene samples is studied in strong magnetic fields up to 45 T. QH plateaus at filling factors nu = 0, +/-1, +/-4 are discovered at magnetic fields B > 20 T, indicating the lifting of the fourfold degeneracy of the previously observed QH states at nu = +/-4(absolute value(n) + 1/2), where n is the Landau-level index. In particular, the presence of the nu = 0, +/-1 QH plateaus indicates that the Landau level at… 

Figures from this paper

GRAPHENE IN EXTREMELY HIGH MAGNETIC FIELDS

We have studied the quantum Hall (QH) effect in two-dimensional electrons and holes in high quality graphene samples in strong magnetic fields up to 45 T. A distinctive half-integer QH effect is

Valley-polarized massive charge carriers in gapped graphene

The lifting of the fourfold degeneracy of the zeroth Landau level in graphene under high magnetic fields has been the subject of numerous experimental studies, and attributed to various mechanisms

Fractional and integer quantum Hall effects in the zeroth Landau level in graphene

Experiments on the fractional quantized Hall effect in the zeroth Landau level of graphene have revealed some striking differences between filling factors in the ranges 0 1. The effective absence of

High-Field Electronic Properties of Graphene

We have measured the energy gaps in single-layer and bilayer graphene by means of temperature dependent transport experiments in high magnetic fields up to 33 T. They follow the expected Landau level

Large Landau-level splitting in a tunable one-dimensional graphene superlattice probed by magnetocapacitance measurements

The unique zero-energy Landau level of graphene has a particle-hole symmetry in the bulk, which is lifted at the boundary leading to a splitting into two chiral edge modes. It has long been

Intrinsic Zeeman Effect in Graphene

The intrinsic Zeeman energy is precisely one half of the cyclotron energy for electrons in graphene. As a result a Landau-level mixing occurs to create the energy spectrum comprised of the 4 j -fold

Quantum transport in chemically functionalized graphene at high magnetic field: defect-induced critical states and breakdown of electron-hole symmetry

Unconventional magnetotransport fingerprints in the quantum Hall regime (with applied magnetic fields from one to several tens of Tesla) in chemically functionalized graphene are reported. Upon
...

References

SHOWING 1-10 OF 22 REFERENCES

IL-13受体α2降低血吸虫病肉芽肿的炎症反应并延长宿主存活时间[英]/Mentink-Kane MM,Cheever AW,Thompson RW,et al//Proc Natl Acad Sci U S A

入侵病原体与宿主之间呈动态平衡,以维持病原体成功地寄生在宿主体内而不致宿主死亡,这是许多寄生虫感染的一个重要特征。包括曼氏血吸虫在内的许多蠕虫感染中,持续的炎症反应比病原体本身对宿主的危害更大,降低宿主的免疫反应具有重要意义。曼氏血吸虫感染后,宿主活化CD4^+Th2细胞,分泌IL-4、IL-5和IL-13。最近研究表明IL-13是肝组织纤维化的重要调节因子。

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2005

Phys

  • Rev. B 69, 075104
  • 2004

Phys

  • Rev. Lett. 95, 146801
  • 2005

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 1985

Nature (London) 438

  • 197
  • 2005

Phys. Rev. B

  • Phys. Rev. B
  • 2002

Phys

  • Rev. Lett. 87, 206401
  • 2001

Phys. Rev. Lett

  • Phys. Rev. Lett
  • 2002

Phys

  • Rev. B 65, 245420
  • 2002