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  • Canton, Sophie E.European XFEL GmbH,Technical University of Denmark (author)

Ultrafast Jahn-Teller Photoswitching in Cobalt Single-Ion Magnets

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:cb0d92b8-6feb-4833-918f-4b154e51c9d7
  • https://lup.lub.lu.se/record/cb0d92b8-6feb-4833-918f-4b154e51c9d7URI
  • https://doi.org/10.1002/advs.202206880DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Single-ion magnets (SIMs) constitute the ultimate size limit in the quest for miniaturizing magnetic materials. Several bottlenecks currently hindering breakthroughs in quantum information and communication technologies could be alleviated by new generations of SIMs displaying multifunctionality. Here, ultrafast optical absorption spectroscopy and X-ray emission spectroscopy are employed to track the photoinduced spin-state switching of the prototypical complex [Co(terpy)2]2+ (terpy = 2,2′:6′,2″-terpyridine) in solution phase. The combined measurements and their analysis supported by density functional theory (DFT), time-dependent-DFT (TD-DFT) and multireference quantum chemistry calculations reveal that the complex undergoes a spin-state transition from a tetragonally elongated doublet state to a tetragonally compressed quartet state on the femtosecond timescale, i.e., it sustains ultrafast Jahn-Teller (JT) photoswitching between two different spin multiplicities. Adding new Co-based complexes as possible contenders in the search for JT photoswitching SIMs will greatly widen the possibilities for implementing magnetic multifunctionality and eventually controlling ultrafast magnetization with optical photons.

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  • Biednov, MykolaEuropean XFEL GmbH (author)
  • Pápai, MátyásWigner Research Centre for Physics, Hungarian Academy of Sciences,Technical University of Denmark (author)
  • Lima, Frederico A.European XFEL GmbH (author)
  • Choi, Tae KyuEuropean XFEL GmbH,Pohang University of Science and Technology (author)
  • Otte, FlorianEuropean XFEL GmbH (author)
  • Jiang, YifengEuropean XFEL GmbH (author)
  • Frankenberger, PaulEuropean XFEL GmbH (author)
  • Knoll, MartinEuropean XFEL GmbH (author)
  • Zalden, PeterEuropean XFEL GmbH (author)
  • Gawelda, WojciechAdam Mickiewicz University in Poznań,IMDEA Nanociencia,Autonomous University of Madrid,European XFEL GmbH (author)
  • Rahaman, AhiburLund University,Lunds universitet,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Lunds Tekniska Högskola,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,Technical University of Denmark(Swepub:lu)chem-arm (author)
  • Møller, Klaus B.Technical University of Denmark (author)
  • Milne, ChristopherEuropean XFEL GmbH (author)
  • Gosztola, David J.Argonne National Laboratory (author)
  • Zheng, KaiboLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LTH profilområde: Avancerade ljuskällor,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LTH Profile Area: Photon Science and Technology,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas,Technical University of Denmark(Swepub:lu)chem-kbz (author)
  • Retegan, MariusEuropean Synchrotron Radiation Facility (author)
  • Khakhulin, DmitryEuropean XFEL GmbH (author)
  • European XFEL GmbHTechnical University of Denmark (creator_code:org_t)

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  • In:Advanced Science10:212198-3844

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