Dirac gap opening and Dirac-fermion-mediated magnetic coupling in antiferromagnetic Gd-doped topological insulators and their manipulation by synchrotron radiation

@inproceedings{Shikin2019DiracGO,
  title={Dirac gap opening and Dirac-fermion-mediated magnetic coupling in antiferromagnetic Gd-doped topological insulators and their manipulation by synchrotron radiation},
  author={Alexander M. Shikin and D. A. Estyunin and Yu. I. Surnin and A. V. Koroleva and E. V. Shevchenko and Konstantin A. Kokh and Oleg E. Tereshchenko and Shiv Kumar and Eike F. Schwier and Kenya Shimada and Tomoki Yoshikawa and Yuji Saitoh and Yukiharu Takeda and Akio Kimura},
  booktitle={Scientific Reports},
  year={2019}
}
A new kind of magnetically-doped antiferromagnetic (AFM) topological insulators (TIs) with stoichiometry Bi1.09Gd0.06Sb0.85Te3 has been studied by angle-resolved photoemission spectroscopy (ARPES), superconducting magnetometry (SQUID) and X-ray magnetic circular dichroism (XMCD) with analysis of its electronic structure and surface-derived magnetic properties at different temperatures. This TI is characterized by the location of the Dirac gap at the Fermi level (EF) and a bulk AFM coupling… CONTINUE READING