Home
For authors
Submission status

Archive
Archive (English)
Current
      Volume 109
      Volume 108
      Volume 107
      Volume 106
      Volume 105
      Volume 104
      Volume 103
      Volume 102
      Volume 101
      Volume 100
      Volume 99
      Volume 98
      Volume 97
      Volume 96
      Volume 95
      Volume 94
      Volume 93
Search
VOLUME 109 | ISSUE 7 | PAGE 479
To the intrinsic magnetism of the Bi 1.08Sn 0.02Sb0.9Te2S topological insulator
Abstract
Using Electron Spin Resonance spectroscopy together with the Superconducting Quantum Interference Device magnetometry we found that the intrinsic magnetic moments, originating from the nonmagnetic structural defects of Bi1.08Sn0.02Sb0.9Te2S topological insulator form the superparamagnetic state. It represents an array of nanoscale single domain ferromagnets randomly distributed in the nonmagnetic meda. Their net magnetic polarization in the absence of external magnetic field is completely averaged out. Single domain ferromagnetic particles at elevated temperatures behave magnetically in a manner analogous to the Langevin paramagnetism of moment bearing atoms. The main distinction is that the moment of the particle may be 102-103 times the atomic moment.