M
M. Knupfer
Researcher at Leibniz Institute for Solid State and Materials Research
Publications - 203
Citations - 5146
M. Knupfer is an academic researcher from Leibniz Institute for Solid State and Materials Research. The author has contributed to research in topics: Electronic structure & Angle-resolved photoemission spectroscopy. The author has an hindex of 39, co-authored 203 publications receiving 4881 citations. Previous affiliations of M. Knupfer include Université de Namur & Chemnitz University of Technology.
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Journal ArticleDOI
Plasmon Evolution and Charge-Density Wave Suppression in Potassium Intercalated 2H-TaSe2
Andreas König,K. Koepernik,R. Schuster,Roberto Kraus,M. Knupfer,Bernd Büchner,Helmuth Berger +6 more
TL;DR: In this article, the influence of potassium intercalation on the formation of the charge-density wave (CDW) instability in 2H-TaSe2 was investigated by means of electron energy-loss spectroscopy and density functional theory.
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Formation of novel nanostructures using carbon nanotubes as a frame
E. Borowiak-Palen,Mark H. Rümmeli,Thomas Gemming,M. Knupfer,Ryszard J. Kalenczuk,Thomas Pichler +5 more
TL;DR: In this paper, the synthesis of novel nanostructures which have been produced by substitution reaction from carbon nanotube templates has been discussed, which represent ideal building blocks for nanoelectronic devices due to their unique electronic properties.
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Electronic states and the influence of oxygen addition on the optical absorption behaviour of manganese phthalocyanine.
Rico Friedrich,Torsten Hahn,Jens Kortus,Michael Fronk,Francisc Haidu,Georgeta Salvan,Dietrich R. T. Zahn,Maik Schlesinger,Michael Mehring,Friedrich Roth,Benjamin Mahns,M. Knupfer +11 more
TL;DR: The reaction of MnPc with atmospheric molecular oxygen leads to deviations in peak intensities but does not change the fundamental characteristics of the spectra, while the reaction with oxygen changes the spin state from S = 3/2 to S = 1/2.
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Filling factor and electronic structure of Dy 3 N@C 80 filled single-wall carbon nanotubes studied by photoemission spectroscopy
Hidetsugu Shiozawa,H. Rauf,T. Pichler,M. Knupfer,Martin Kalbac,Shangfeng Yang,Lothar Dunsch,Bernd Büchner,David Batchelor,Hiromichi Kataura +9 more
TL;DR: In this paper, a detailed study of the filling factor and electronic structure of the trimetal nitride fullerene (TNFF) filled single-wall carbon nanotubes (SWCNTs), the so-called endohedral peapods, was performed using photoemission spectroscopy as a probe.
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Nearest-neighbor Kitaev exchange blocked by charge order in electron-doped α − RuCl 3
Andreas Koitzsch,Carsten Habenicht,Eric A. Muller,M. Knupfer,Bernd Büchner,S. Kretschmer,Manuel Richter,J. van den Brink,Felix Börrnert,Domenic Nowak,Anna Isaeva,Th. Doert +11 more
TL;DR: In this paper, it was shown that the intercalation compound K{}_{0.5}$RuCl${}_{3}$ sustains a peculiar charge disproportionation into formally Ru{}^{2+}$ and Ru${}^{3+}$.