Abstract
Quantum wells of HgTe doped with Mn display the quantum anomalous Hall effect due to the magnetic moments of the Mn ions. In the presence of a magnetic field, these magnetic moments induce an effective nonlinear Zeeman effect, causing a nonmonotonic bending of the Landau levels. As a consequence, the quantized (spin) Hall conductivity exhibits a reentrant behavior as one increases the magnetic field. Here, we will discuss the appearance of different types of reentrant behavior as a function of Mn concentration, well thickness, and temperature, based on the qualitative form of the Landau-level spectrum in an effective four-band model.
| Original language | English (US) |
|---|---|
| Article number | 195304 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 85 |
| Issue number | 19 |
| DOIs | |
| State | Published - May 4 2012 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
Cite this
}
Reentrant topological phases in Mn-doped HgTe quantum wells. / Beugeling, W.; Liu, Chaoxing; Novik, E. G.; Molenkamp, L. W.; Morais Smith, C.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 85, No. 19, 195304, 04.05.2012.Research output: Contribution to journal › Article
TY - JOUR
T1 - Reentrant topological phases in Mn-doped HgTe quantum wells
AU - Beugeling, W.
AU - Liu, Chaoxing
AU - Novik, E. G.
AU - Molenkamp, L. W.
AU - Morais Smith, C.
PY - 2012/5/4
Y1 - 2012/5/4
N2 - Quantum wells of HgTe doped with Mn display the quantum anomalous Hall effect due to the magnetic moments of the Mn ions. In the presence of a magnetic field, these magnetic moments induce an effective nonlinear Zeeman effect, causing a nonmonotonic bending of the Landau levels. As a consequence, the quantized (spin) Hall conductivity exhibits a reentrant behavior as one increases the magnetic field. Here, we will discuss the appearance of different types of reentrant behavior as a function of Mn concentration, well thickness, and temperature, based on the qualitative form of the Landau-level spectrum in an effective four-band model.
AB - Quantum wells of HgTe doped with Mn display the quantum anomalous Hall effect due to the magnetic moments of the Mn ions. In the presence of a magnetic field, these magnetic moments induce an effective nonlinear Zeeman effect, causing a nonmonotonic bending of the Landau levels. As a consequence, the quantized (spin) Hall conductivity exhibits a reentrant behavior as one increases the magnetic field. Here, we will discuss the appearance of different types of reentrant behavior as a function of Mn concentration, well thickness, and temperature, based on the qualitative form of the Landau-level spectrum in an effective four-band model.
UR - http://www.scopus.com/inward/record.url?scp=84861175236&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84861175236&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.85.195304
DO - 10.1103/PhysRevB.85.195304
M3 - Article
VL - 85
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 19
M1 - 195304
ER -