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@ARTICLE{Freter:1008522,
      author       = {Freter, Lars and Hsu, Hung-Chang and Sankar, Raman and
                      Chen, Chun-Wei and Dunin-Borkowski, Rafal E. and Ebert,
                      Philipp and Chiu, Ya-Ping and Schnedler, Michael},
      title        = {{I}nterplay of field-induced molecular dipole alignment and
                      compensating surface polarization in low-temperature {P} −
                      {V} hysteresis of {MAP}b{B}r 3 ( 001 )},
      journal      = {Physical review materials},
      volume       = {7},
      number       = {5},
      issn         = {2475-9953},
      address      = {College Park, MD},
      publisher    = {APS},
      reportid     = {FZJ-2023-02362},
      pages        = {L052401},
      year         = {2023},
      abstract     = {We demonstrate the presence of a hysteresis in tunneling
                      spectra acquired at 4.3 K on cleaved MA-Br terminated (001)
                      surfaces of MAPbBr3 single crystals. Simulations of the
                      tunneling spectra reveal an underlying polarization-voltage
                      (P-V) hysteresis, which is caused by an interplay of
                      subsurface field-induced rotation and alignment of the MA
                      molecules, stabilized by dipole-dipole interactions, and an
                      ion-lattice relaxation. The resulting subsurface
                      polarization is counteracted by a compensating surface
                      polarization, detectable by surface-sensitive tunneling
                      spectroscopy.},
      cin          = {ER-C-1},
      ddc          = {530},
      cid          = {I:(DE-Juel1)ER-C-1-20170209},
      pnm          = {5351 - Platform for Correlative, In Situ and Operando
                      Characterization (POF4-535) / DFG project 447951695 -
                      Mikroskopische Untersuchung der Umordnung von
                      Molekül-Dipolen in Organo-Metall-Halogenid-Perowskiten
                      (447951695)},
      pid          = {G:(DE-HGF)POF4-5351 / G:(GEPRIS)447951695},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000993291200002},
      doi          = {10.1103/PhysRevMaterials.7.L052401},
      url          = {https://juser.fz-juelich.de/record/1008522},
}