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@ARTICLE{Santoso:320128,
      author       = {Santoso, Iman and Ku, Wei and Shirakawa, Tomonori and
                      Neuber, Gerd and Yin, Xinmao and Enoki, M. and Fujita,
                      Masaki and Liang, Ruixing and Venkatesan, T. and Sawatzky,
                      George A. and Kotlov, Aleksei and Yunoki, Seiji and
                      Rübhausen, Michael and Rusydi, Andrivo},
      title        = {{U}nraveling {L}ocal {S}pin {P}olarization of
                      {Z}hang-{R}ice {S}inglet in {L}ightly {H}ole-{D}oped
                      {C}uprates {U}sing {H}igh-{E}nergy {O}ptical {C}onductivity},
      journal      = {Physical review / B},
      volume       = {95},
      number       = {16},
      issn         = {2469-9950},
      address      = {Woodbury, NY},
      publisher    = {Inst.},
      reportid     = {PUBDB-2017-01533},
      pages        = {165108},
      year         = {2017},
      abstract     = {Unrevealing local magnetic and electronic correlations in
                      the vicinity of charge carriers is crucial in order
                      tounderstand rich physical properties in correlated electron
                      systems. Here, using high-energy optical conductivity(up to
                      35 eV) as a function of temperature and polarization, we
                      observe a surprisingly strong spin polarizationof the local
                      spin singlet with enhanced ferromagnetic correlations
                      between Cu spins near the doped holesin lightly hole-doped
                      $La_{1.95}Sr_{0.05}Cu_{0.95}Zn_{0.05}O_4$. The changes of
                      the local spin polarization manifest stronglyin the
                      temperature-dependent optical conductivity at ∼7.2 eV,
                      with an anomaly at the magnetic stripe phase(∼ 25 K),
                      accompanied by anomalous spectral-weight transfer in a broad
                      energy range. Supported by theoreticalcalculations, we also
                      assign high-energy optical transitions and their
                      corresponding temperature dependence,particularly at ∼2.5,
                      ∼8.7, ∼9.7, ∼11.3, and ∼21.8 eV. Our result shows
                      the importance of a strong mixture ofspin singlet and
                      triplet states in hole-doped cuprates and demonstrates a new
                      strategy to probe local magneticcorrelations using
                      high-energy optical conductivity in correlated electron
                      systems.},
      cin          = {DOOR / FS-PEX / CFEL-AO},
      ddc          = {530},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-PEX-20130206 /
                      I:(DE-H253)CFEL-AO-20160914},
      pnm          = {6213 - Materials and Processes for Energy and Transport
                      Technologies (POF3-621)},
      pid          = {G:(DE-HGF)POF3-6213},
      experiment   = {EXP:(DE-H253)D-I-20150101},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000402740100001},
      doi          = {10.1103/PhysRevB.95.165108},
      url          = {https://bib-pubdb1.desy.de/record/320128},
}