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  • Porphyrin metalation providing an example of a redox reaction facilitated by a surface reconstruction 
    Nowakowski, Jan; Wackerlin, Christian; Girovsky, Jan; Siewert, Dorota; Jung, Thomas A.; BALLAV, NIRMALYA (Royal Society of Chemistry, 2013-02)
    he presence of an oxygen reconstruction on the Cu(001) surface results in the self-metalation of 5,10,15,20-tetraphenylporphyrin (2HTPP) below room temperature (at -285 K), in contrast to 2 HTPP on the bare Cu(001) substrate, ...
  • Ammonia Coordination Introducing a Magnetic Moment in an On‐Surface Low‐Spin Porphyrin 
    Wackerlin, Christian; Tarafder, Kartick; Girovsky, Jan; Nowakowski, Jan; Hahlen, Tatjana; Shchyrba, Aneliia; Siewert, Dorota; Kleibert, Armin; Nolting, Frithjof; Oppeneer, Peter M.; Jung, Thomas A.; BALLAV, NIRMALYA (Wiley, 2013-04)
    The molecular spin state of NiII porphyrin, supported on a ferromagnetic Co surface, can be reversibly switched between spin‐off (S=0) and spin‐on (S=1) states upon coordination and decoordination of the gaseous ligand ...
  • Two‐Dimensional Supramolecular Electron Spin Arrays (Adv. Mater. 17/2013) 
    Wackerlin, Christian; Nowakowski, Jan; Liu, Shi-Xia; Jaggi, Michael; Siewert, Dorota; Girovsky, Jan; Shchyrba, Aneliia; Hählen, Tatjana; Kleibert, Armin; Oppeneer, Peter M.; Nolting, Frithjof; Decurtins, Silvio; Jung, Thomas A.; BALLAV, NIRMALYA (Wiley, 2013-05)
    Addressable arrangements of spins at the molecular scale provide novel and exciting possibilities towards future spintronic applications. On page 2404, Nirmalya Ballav, Christian Wäckerlin, and co‐workers employ a bottom‐up ...
  • Magnetic exchange coupling of a synthetic Co(II)-complex to a ferromagnetic Ni substrate 
    Wackerlin, Christian; Maldonado, Pabl; Arnold, Lena; Shchyrba, Aneliia; Girovsky, Jan; Nowakowski, Jan; Ali, Md. Ehesan; Hahlen, Tatjana; Baljozovic, Milos; Siewert, Dorota; Kleibert,; Klaus Mullen; Oppeneer, Peter M.; Jung, Thomas A.; BALLAV, NIRMALYA (Royal Society of Chemistry, 2013-09)
    On-surface assembly of a spin-bearing and non-aromatic porphyrin-related synthetic Co(II)-complex on a ferromagnetic Ni thin film substrate and subsequent magnetic exchange interaction across the interface were studied by ...
  • Investigating magneto-chemical interactions at molecule substrate interfaces by X-ray photo-emission electron microscopy 
    Irovsky, Jan; Buzzi, Michele; Wackerlin, Christian; Siewert, Dorota; Nowakowski, Jan; Oppeneer, Peter M.; Nolting, Frithjof; Jung, Thomas A.; Kleibert, Armin; BALLAV, NIRMALYA (Royal Society of Chemistry, 2013-12)
    The magneto-chemical interaction of spin-bearing molecules with substrates is interesting from a coordination chemistry point of view and relevant for spintronics. Unprecedented insight is provided by X-ray photo-emission ...
  • Controlling the Dimensionality of On-Surface Coordination Polymers via Endo- or Exoligation 
    Shchyrba, Aneliia; W. ckerlin, Christian; Nowakowski, Jan; Nowakowska, Sylwia; Nijs, Thomas; Martens, Susanne C.; Kleibert, Armin; Stohr, Meike; BALLAV, NIRMALYA; Jung, Thomas A.; Gade, Lutz H. (American Chemical Society, 2014-07)
    The formation of on-surface coordination polymers is controlled by the interplay of chemical reactivity and structure of the building blocks, as well as by the orientating role of the substrate registry. Beyond the ...
  • Antiferromagnetic coupling of Cr-porphyrin to a bare Co substrate 
    Girovsky, Jan; Tarafder, Kartick; Wackerlin, Christian; Nowakowski, Jan; Siewert, Dorota; Hahlen, Tatjana; Wckerlin, Aneliia; Kleibert, Armin; BALLAV, NIRMALYA; Jung, Thomas A.; Oppeneer, Peter M. (American Physical Society, 2014-12)
    We report the discovery of an antiferromagnetic coupling of the magnetic moment of chromium(II) tetraphenyl-porphyrin (CrTPP) molecules to the magnetization of the clean ferromagnetic Co(001) substrate. We assign this ...
  • Probing the Reactivity of Functionalized Surfaces by Porphyrin Metalation 
    Nowakowski, Jan; Nowakowska, Sylwia; Srivastava, Gitika; Baljozovic, Milos; Girovsky, Jan; BALLAV, NIRMALYA; Jung, Thomas A. (Wiley, 2016-04)
    The presence of N‐ and Cl‐induced superstructures is shown to drastically alter the physicochemical properties of the Cu(001) substrate. We present coherent evidence that N‐ and Cl‐c(2x2) superstructures on Cu(001) decisively ...
  • Long-range ferrimagnetic order in a two-dimensional supramolecular Kondo lattice 
    Girovsky, Jan; Nowakowski, Jan; Ali, Md. Ehesan; Baljozovic, Milos; Rossmann, Harald R.; Nijs, Thomas; Aeby, Elise A.; Nowakowska, Sylwia; Siewert, Dorota; Srivastava, Gitika; Wackerlin, Christian; Dreiser, Jan; Decurtins, Silvio; Liu, Shi-Xia; Oppeneer, Peter M.; Jung, Thomas A.; BALLAV, NIRMALYA (Nature Publishing Group, 2017-05)
    Realization of long-range magnetic order in surface-supported two-dimensional systems has been challenging, mainly due to the competition between fundamental magnetic interactions as the short-range Kondo effect and ...

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