Probing the band topology of mercury telluride through weak localization and antilocalization
Probing the band topology of mercury telluride through weak localization and antilocalization
复制标题
通过弱局域化和反局域化探测碲化汞的能带拓扑
DOI:
10.1088/0268-1242/27/12/124006
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发表时间:
2012
影响因子:
1.9
通讯作者:
K. Richter
中科院分区:
文献类型:
--
作者:
V. Krueckl;K. Richter
We analyze the effect of weak localization (WL) and weak antilocalization (WAL) in the electronic transport through HgTe/CdTe quantum wells. We show that for increasing Fermi energy, the magnetoconductance of a diffusive system with inverted band ordering features a transition from WL to WAL and back, if spin–orbit interactions from bulk and structure inversion asymmetries can be neglected. This, and an additional splitting in the magnetoconductance profile, is a signature of the Berry phase arising for inverted band ordering and is not present in heterostructures with conventional ordering. In the presence of spin–orbit interaction, both band topologies exhibit WAL, which is distinctly energy dependent for quantum wells with inverted band ordering. This can be explained by an energy-dependent decomposition of the Hamiltonian into two blocks.
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影响因子:
8.6
作者:
McCann, E.;Kechedzhi, K.;Altshuler, B. L.
通讯作者:
Altshuler, B. L.
影响因子:
8.6
作者:
Kane, CL;Mele, EJ
通讯作者:
Mele, EJ
影响因子:
8.6
作者:
Krueckl, Viktor;Richter, Klaus
通讯作者:
Richter, Klaus
影响因子:
3.7
作者:
Gmitra, M.;Konschuh, S.;Fabian, J.
通讯作者:
Fabian, J.
DOI:
--
发表时间:
2007
期刊:
Journal of Magnetism and Magnetic Materials 310
影响因子:
--
作者:
A.Tanaka;X.Hu
通讯作者:
X.Hu