Magnetic topological insulators and quantum anomalous hall effect

X Kou, Y Fan, M Lang, P Upadhyaya… - Solid State …, 2015‏ - Elsevier
When the magnetic order is introduced into topological insulators (TIs), the time-reversal
symmetry (TRS) is broken, and the non-trivial topological surface is driven into a new …

Imaging Dirac-mass disorder from magnetic dopant atoms in the ferromagnetic topological insulator Crx(Bi0.1Sb0.9)2-xTe3

I Lee, CK Kim, J Lee, SJL Billinge, R Zhong… - Proceedings of the …, 2015‏ - pnas.org
To achieve and use the most exotic electronic phenomena predicted for the surface states of
3D topological insulators (TIs), it is necessary to open a “Dirac-mass gap” in their spectrum …

Magnetic Cr do** of : Evidence for divalent Cr from x-ray spectroscopy

AI Figueroa, G Van der Laan, LJ Collins-McIntyre… - Physical Review B, 2014‏ - APS
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 …

RKKY interaction on surfaces of topological insulators with superconducting proximity effect

AA Zyuzin, D Loss - Physical Review B, 2014‏ - APS
We consider the Ruderman-Kittel-Kasuya-Yosida (RKKY) interaction between magnetic
impurities on the surface of a three-dimensional topological insulator with proximity induced …

Observation of superparamagnetism in coexistence with quantum anomalous Hall C = ±1 and C = 0 Chern states

EO Lachman, M Mogi, J Sarkar, A Uri, K Bagani… - npj Quantum …, 2017‏ - nature.com
Simultaneous transport and scanning nanoSQUID-on-tip magnetic imaging studies in Cr-(Bi,
Sb) 2Te3 modulation-doped films reveal the presence of superparamagnetic order within …

[HTML][HTML] Ferromagnetism in Cr-doped topological insulator TlSbTe2

Z Wang, K Segawa, S Sasaki, AA Taskin, Y Ando - APL Materials, 2015‏ - pubs.aip.org
We have synthesized a new ferromagnetic topological insulator by do** Cr to the ternary
topological-insulator material TlSbTe 2. Single crystals of Tl 1− x Cr x SbTe 2 were grown by …

Epitaxial Growth and Characterization of Nanoscale Magnetic Topological Insulators: Cr-Doped (Bi0.4Sb0.6)2Te3

P Gultom, CC Hsu, MK Lee, SH Su, JCA Huang - Nanomaterials, 2024‏ - mdpi.com
The exploration initiated by the discovery of the topological insulator (Bi x Sb1− x) 2Te3 has
extended to unlock the potential of quantum anomalous Hall effects (QAHEs), marking a …

Numerical analysis of voltage-controlled magnetization switching operation in magnetic-topological-insulator-based devices

T Komine, T Chiba - Applied Physics Letters, 2023‏ - pubs.aip.org
We theoretically investigate influences of electronic circuit delay, noise, and temperature on
write-error-rate (WER) in voltage-controlled magnetization switching operation of a magnetic …

Magnetic correlations in the magnetic topological insulator

NJ Steinke, SL Zhang, PJ Baker, LB Duffy, F Kronast… - Physical Review B, 2022‏ - APS
Chromium-doped Sb 2 Te 3 is a magnetic topological insulator (MTI), which belongs to the
(Sb, Bi) 2 (Se, Te) 3 family. When doped with the transition metals V, Cr, and Mn this family …

Systematic Study of Ferromagnetism in CrxSb2−xTe3 Topological Insulator Thin Films using Electrical and Optical Techniques

A Singh, VS Kamboj, J Liu, J Llandro, LB Duffy… - Scientific reports, 2018‏ - nature.com
Ferromagnetic ordering in a topological insulator can break time-reversal symmetry,
realizing dissipationless electronic states in the absence of a magnetic field. The control of …