%0 Journal Article %T Magneto-transport in inverted HgTe quantum wells %+ Institute of High Pressure Physics [Warsaw] (IHPP) %+ Laboratoire Charles Coulomb (L2C) %A Yahniuk, Ivan %A Krishtopenko, Sergey S. %A Grabecki, Grzegorz %A Jouault, Benoit %A Consejo, Christophe %A Desrat, Wilfried %A Majewicz, Magdalena %A Kadykov, Alexander M. %A Spirin, Kirill E. %A Gavrilenko, Vladimir I. %A Mikhailov, Nikolay N. %A Dvoretsky, Sergey A. %A But, Dmytro B. %A Teppe, Frederic %A Wrobel, Jerzy %A Cywinski, Grzegorz %A Kret, Slawomir %A Dietl, Tomasz %A Knap, Wojciech %< avec comité de lecture %Z L2C:19-196 %@ 2397-4648 %J Npj Quantum Materials %I Nature publishing %V 4 %P 13 %8 2019 %D 2019 %R 10.1038/s41535-019-0154-3 %Z Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Journal articles %X HgTe quantum wells (QWs) are two-dimensional semiconductor systems that change their properties at the critical thickness dc, corresponding to the band inversion and topological phase transition. The motivation of this work was to study magnetotransport properties of HgTe QWs with thickness approaching dc, and examine them as potential candidates for quantum Hall effect (QHE) resistance standards. We show that in the case of d > dc (inverted QWs), the quantization is influenced by coexistence of topological helical edge states and QHE chiral states. However, at d ≈ dc, where QW states exhibit a graphene-like band structure, an accurate Hall resistance quantization in low magnetic fields (B ≤ 1.4 T) and at relatively high temperatures (T ≥ 1.3 K) may be achieved. We observe wider and more robust quantized QHE plateaus for holes, which suggests—in accordance with the “charge reservoir” model—a pinning of the Fermi level in the valence band region. Our analysis exhibits advantages and drawbacks of HgTe QWs for quantum metrology applications, as compared to graphene and GaAs counterparts. %G English %2 https://hal.science/hal-02302388/document %2 https://hal.science/hal-02302388/file/s41535-019-0154-3.pdf %L hal-02302388 %U https://hal.science/hal-02302388 %~ CNRS %~ L2C %~ MIPS %~ UNIV-MONTPELLIER %~ UM-2015-2021