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@ARTICLE{Jatav:623192,
      author       = {Jatav, Hemant and Chakravorty, ORCID logo ab Anusmita and
                      Mishra, a Ambuj and Schwartzkopf, a Matthias and Chumakov,
                      Andrei and Roth, Stephan and Kabiraja, Debdulal},
      title        = {{T}hermal evolution of solid solution of silica-embedded
                      {A}g{P}t alloy {NP}s in the large miscibility gap},
      journal      = {Nanoscale horizons},
      volume       = {10},
      number       = {4},
      issn         = {2055-6756},
      address      = {Cambridge},
      publisher    = {Royal Society of Chemistry},
      reportid     = {PUBDB-2025-00640},
      pages        = {748 - 759},
      year         = {2025},
      note         = {Waiting for fulltext},
      abstract     = {Understanding the phase behavior of immiscible elements in
                      bimetallic nanomaterials is essential for controlling their
                      structure and properties. At the nanoscale, the miscibility
                      of these immiscible elements often deviates from their
                      behavior in bulk materials. Despite its significance,
                      comprehensive and quantitative experimental insights into
                      the dynamics of the immiscible-to-miscible transition, and
                      vice versa, remain limited. In this study, we investigate
                      the nucleation and growth kinetics of silica-embedded AgPt
                      nanoparticles (NPs) across a wide range of annealing
                      temperatures (25 °C to 900 °C) to elucidate
                      temperature-dependent nanoalloy phase transitions and NP
                      size distribution. Our findings reveal that the alloy phase
                      persists up to 400 °C, with a corresponding average NP size
                      of ∼2 nm. Beyond this temperature, phase instability
                      begins to occur. We propose a three-stage process of
                      nucleation and growth: (1) initial AgPt nanoalloy formation
                      during deposition, (2) growth via thermal energy-assisted
                      diffusion up to 400 °C, and (3) Ag atom emission from the
                      nanoalloy above 500 °C, indicating Ag diffusion towards the
                      surface, followed by partial sublimation of Ag atoms at 900
                      °C. These results provide crucial insights into the thermal
                      limits for the dealloying of NPs, growth kinetics, and phase
                      stability or instability under varying thermal conditions.},
      cin          = {DOOR ; HAS-User / FS-PE / FS-SMA},
      ddc          = {540},
      cid          = {I:(DE-H253)HAS-User-20120731 / I:(DE-H253)FS-PE-20120731 /
                      I:(DE-H253)FS-SMA-20220811},
      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-P03-20150101},
      typ          = {PUB:(DE-HGF)16},
      pubmed       = {39902553},
      UT           = {WOS:001412055500001},
      doi          = {10.1039/D4NH00509K},
      url          = {https://bib-pubdb1.desy.de/record/623192},
}