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@ARTICLE{Lahiri:646900,
      author       = {Lahiri, Debdutta and Pandey, K. K. and Modak, P. and
                      Ramanan, Nitya and Czyzycki, Mateusz and Falkenberg, Gerald
                      and Prakash, Jai and Thakur, Gohil S. and Ganguli, A. K. and
                      Garg, Nandini},
      title        = {{P}robing nonlinear structure-orbital correlation for
                      {P}r{OF}e$_{0.9}${C}o$_{0.1}$ as under pressure},
      journal      = {International journal of modern physics / B},
      volume       = {40},
      number       = {08},
      issn         = {0217-9792},
      address      = {Singapore [u.a.]},
      publisher    = {World Scientific Publ.},
      reportid     = {PUBDB-2026-00967},
      pages        = {2650072},
      year         = {2026},
      abstract     = {Fe-based pnictides have evolved as a practical alternative
                      to Cuprate superconductors. Electrons are transported along
                      As–Fe–As path of inter-connected FeAs4, utilizing Fe
                      3d-As 4p orbital hybridization. This leads to an obvious
                      question — what are the key tetrahedral parameters that
                      control hybridization? Unfortunately, empirical results from
                      discrete experiments generated conflicting
                      structure-transport correlations. The present work attempts
                      to fill this logistic gap by probing the missing
                      structure-orbital correlation link. To this effect,
                      pressure-dependent XRD and As K-edge XANES were measured on
                      the same sample set of PrOFe0.9Co0.1As. A point of
                      inflection emerges at the compressibility limit of Fe–As
                      bond-length. At this point, the trajectory of As atom and
                      (correspondingly) parameters of FeAs4 undergo parabolic
                      reversal whilepd hybridization undergoes nonreversible
                      maximization. This incongruence generates nonlinear
                      structure-orbital correlation, which is a novel finding. Two
                      novel concepts emanate from this exercise — (a)
                      compressibility limit of Fe–As bond-length emerges as the
                      new critical reference and (b) nonlinearity warrants that pd
                      hybridization is sensitive to the phase of As trajectory
                      (relative to this reference) rather than the absolute values
                      of tetrahedral parameters. These mark major corrections from
                      previous works, which should settle the existing conflicts.},
      cin          = {DOOR ; HAS-User / FS-PETRA-S},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 /
                      I:(DE-H253)FS-PETRA-S-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-P06-20150101},
      typ          = {PUB:(DE-HGF)16},
      doi          = {10.1142/S0217979226500724},
      url          = {https://bib-pubdb1.desy.de/record/646900},
}