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@ARTICLE{Suhas:624399,
      author       = {Suhas, K. T. and Das, Tisita and Singh, Aditya and Khadiev,
                      Azat and Soni, Ajay and Chakraborty, Sudip and Viswanatha,
                      Ranjani},
      title        = {{C}hemical strain induced {R}ashba effect in
                      two-dimensional {R}uddlesden-{P}opper perovskites},
      journal      = {Physical review / B},
      volume       = {111},
      number       = {8},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {PUBDB-2025-00868},
      pages        = {L081401},
      year         = {2025},
      abstract     = {We report the observation of Rashba splitting in multilayer
                      Cs$_2$⁢PbI$_2$⁢⁢Cl$_2$⁢ two-dimensional
                      Ruddlesden-Popper phase perovskite nanocrystals (NCs)
                      induced by chemical strain. Magnetic circular dichroism
                      measurements reveal significant Zeeman splitting, indicating
                      strong spin-orbit coupling. At 10 K, pronounced circular
                      dichroism signals suggest structural asymmetry linked to the
                      Rashba effect. Photoluminescence (PL) peak splitting at low
                      temperatures, supported by polarization-dependent PL
                      measurements showing emission anisotropy below 70 K,
                      confirms the presence of spin selectivity. High-resolution
                      synchrotron x-ray diffraction and temperature-dependent
                      Raman data reveal a transition in unit cell parameters and
                      phonon frequencies around 70 K, respectively, correlating
                      with optical data. The strain induced local asymmetry
                      facilitates these effects. Density functional theory
                      calculations validate the experimental findings, showing
                      clear spin splitting in the valence and conduction bands.
                      This study investigates the influence of chemical strain on
                      asymmetry-induced phenomena, such as the Rashba effect in
                      Cs$_2$⁢⁢PbI$_2$⁢⁢Cl$_2$⁢ NCs, highlighting their
                      potential as a promising platform for advanced
                      technologies.},
      cin          = {DOOR ; HAS-User / FS-PETRA-D},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PETRA-D-20210408},
      pnm          = {632 - Materials – Quantum, Complex and Functional
                      Materials (POF4-632) / 6G3 - PETRA III (DESY) (POF4-6G3) /
                      INDIA-DESY - INDIA-DESY Collaboration
                      $(2020_Join2-INDIA-DESY)$},
      pid          = {G:(DE-HGF)POF4-632 / G:(DE-HGF)POF4-6G3 /
                      $G:(DE-HGF)2020_Join2-INDIA-DESY$},
      experiment   = {EXP:(DE-H253)P-P23-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:001423792900008},
      doi          = {10.1103/PhysRevB.111.L081401},
      url          = {https://bib-pubdb1.desy.de/record/624399},
}