Magnetic Cr doping of Bi2Se3: Evidence for divalent Cr from x-ray spectroscopy
Ferromagnetically doped topological insulators with broken time-reversal symmetry are a prerequisite for observing the quantum anomalous Hall effect. Cr-doped (Bi,Sb)2(Se,Te)3 is the most successful materials system so far, as it combines ferromagnetic ordering with acceptable levels of additional b...
| Main Authors: | , , , , , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
American Physical Society
2014
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