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@ARTICLE{Saito:916651,
      author       = {Saito, Takahito and Nishimura, Toshimichi and Yoon,
                      Ju-Young and Kölzer, Jonas and Iizasa, Daisuke and
                      Kammermeier, Michael and Schäpers, Thomas and Nitta,
                      Junsaku and Kohda, Makoto},
      title        = {{L}ifetime of spin-orbit induced spin textures in a
                      semiconductor heterostructure probed by quantum corrections
                      to conductivity},
      journal      = {Physical review research},
      volume       = {4},
      number       = {4},
      issn         = {2643-1564},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2023-00003},
      pages        = {043217},
      year         = {2022},
      abstract     = {The persistent spin helix (PSH) is the stable spin state
                      protected by SU(2) spin-rotation symmetry. Long-livedspin
                      textures, referred to as helical and homogeneous spin modes,
                      emerge as a result of this symmetry. Thesetextures are
                      potential candidates for the development of quantum and
                      topological phenomena as well as information carriers in
                      semiconductors. To this end, revealing the lifetime of all
                      spin modes is of great importance. Weexperimentally reveal
                      the lifetime of both helical and homogeneous spin modes in
                      the vicinity of the PSH stateby fully electrical means
                      through quantum corrections to the conductivity. In a
                      (001)-grown GaAs/AlGaAs twodimensional electron gas, we
                      measure the weak antilocalization in the condition where
                      Rashba and Dresselhausspin-orbit (SO) interactions coexist.
                      According to the latest theory on magnetoconductance
                      [Kammermeier et al.,Phys. Rev. B 104, 235430 (2021)], the
                      Cooperon triplet mode in the quantum corrections can be
                      decoupledinto helical and homogeneous spin modes in the
                      vicinity of the PSH state, which allows each mode lifetimeto
                      be determined from the quantum interference effect. By using
                      a real-space simulation in tandem with theexperiment, we
                      were able to simultaneously evaluate the relaxation rates of
                      the two spin modes. Our results showthat the ratio of Rashba
                      and Dresselhaus SO coefficients is modulated by the top gate
                      and that this quadraticallychanges the relaxation rates of
                      the helical and homogeneous spin modes, which is consistent
                      with theoreticalpredictions. These findings pave the way for
                      exploring electron spin textures in various bandgap
                      materials fromsemiconductors to metals.},
      cin          = {PGI-9},
      ddc          = {530},
      cid          = {I:(DE-Juel1)PGI-9-20110106},
      pnm          = {5222 - Exploratory Qubits (POF4-522)},
      pid          = {G:(DE-HGF)POF4-5222},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000906919400001},
      doi          = {10.1103/PhysRevResearch.4.043217},
      url          = {https://juser.fz-juelich.de/record/916651},
}