Kari Ruotsalainen

Helmholtz-Zentrum Berlin für Materialien und Energie — Germany

Physics and Astronomy · Physical Sciences

9h-index228citations35works2.22yr avg
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Research Topics

Advanced Condensed Matter Physics(11), Electronic and Structural Properties of Oxides(8), Magnetic and transport properties of perovskites and related materials(7), X-ray Spectroscopy and Fluorescence Analysis(5), Advanced Chemical Physics Studies(4)

Publications35 total

Direct measurement of the longitudinal exciton dispersion in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>h</mml:mi></mml:math>-BN by resonant inelastic x-ray scattering
Physical review. B./Physical review. B·2025Open Access
Highly variable carbon environment in the <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi>κ</mml:mi><mml:msub><mml:mtext>-(BEDT-TTF)</mml:mtext><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mrow><mml:mo>(</mml:mo><mml:mi>CN</mml:mi><mml:mo>)</mml:mo></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math> salt probed by carbon <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mi>K</mml:mi></mml:math>-edge x-ray absorption and resonant inelastic x-ray scattering spectroscopy
Physical review. B./Physical review. B·2025Open Access
Quasimolecular electronic structure of the trimer iridate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Ba</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi>NbIr</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>12</mml:mn></mml:msub></mml:mrow></mml:math>
Physical review. B./Physical review. B·2025Open Access
How Amino Acids Intercalate in CaFe Layered Double Hydroxides: A Combined RIXS and NEXAFS Study
ChemPhysChem·2025Open Access
Direct measurement of the longitudinal exciton dispersion in hBN by resonant inelastic x-ray scattering
arXiv (Cornell University)·2025Open Access
Quasimolecular electronic structure of the trimer iridate Ba$_4$NbIr$_3$O$_{12}$
arXiv (Cornell University)·2024Open Access
A miniature X-ray diffraction setup on ID20 at the European Synchrotron Radiation Facility
Journal of Synchrotron Radiation·2024· 1 citedOpen Access
Orbital-overlap-driven hybridization in 3d-transition metal perovskite oxides LaMO3 (M = Ti-Ni) and La2CuO4
Communications Physics·2024· 10 citedOpen Access
Correlating Valence and 2p3d RIXS Spectroscopies: A Ligand-Field Study of Spin-Crossover Iron(II)
Inorganic Chemistry·2024· 9 citedOpen Access
Paramagnon dispersion and damping in doped <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Na</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi>Ca</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mtext>−</mml:mtext><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi>CuO</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>Cl</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>
Physical review. B./Physical review. B·2023· 6 citedOpen Access
Role of La 5p in Bulk and Quantum-Confined Solids Probed by the La 5p<sup>5</sup>4f<sup>1</sup> <sup>3</sup>D<sub>1</sub> Excitonic Final State of Resonant Inelastic X-ray Scattering
The Journal of Physical Chemistry C·2023· 5 citedOpen Access
Paramagnon dispersion and damping in doped Na$_{x}$Ca$_{2-x}$CuO$_2$Cl$_2$
arXiv (Cornell University)·2023Open Access
Plasmonic Properties of SrVO<sub>3</sub> Bulk and Nanostructures
Advanced Optical Materials·2023· 2 citedOpen Access
Excited-state exchange interaction in NiO determined by high-resolution resonant inelastic x-ray scattering at the Ni <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>M</mml:mi><mml:mrow><mml:mn>2</mml:mn><mml:mo>,</mml:mo><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:math> edges
Physical review. B./Physical review. B·2022· 1 citedOpen Access
Spin-lattice angular momentum transfer of localized and valence electrons in the demagnetization transient state of gadolinium
Applied Physics Letters·2021· 6 citedOpen Access
Resonant inelastic x-ray scattering study of doping and temperature dependence of low-energy excitations in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">La</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant="normal">Sr</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi mathvariant="normal">VO</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:math> thin films
Physical review. B./Physical review. B·2021· 7 citedOpen Access
Dynamical screening in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mrow><mml:mi>SrVO</mml:mi></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:math>: Inelastic x-ray scattering experiments and<i>ab initio</i>calculations
Physical review. B./Physical review. B·2021· 4 citedOpen Access
Thresholding of the Elliott-Yafet spin-flip scattering in multi-sublattice magnets by the respective exchange energies
Scientific Reports·2021· 5 citedOpen Access
Unraveling intrinsic correlation effects with angle-resolved photoemission spectroscopy
Proceedings of the National Academy of Sciences·2020· 29 citedOpen Access
Low-energy Electronic Excitations in Transition-metal Oxide as Probed by STEM-EELS Spectromicroscopy
Microscopy and Microanalysis·2020Open Access
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Frequent Co-authors

Simo Huotari(12), Alessandro Nicolaou(10), Christoph J. Sahle(9), K. Hämäläinen(8), Mikko Hakala(8), Matteo Gatti(8), Régis Decker(7), G. Monaco(6), Alexander Föhlisch(6), Annette Pietzsch(6), Tuomas Pylkkänen(5), S. Galambosi(5), Iina Juurinen(4), Johannes Niskanen(4), Artur Born(4), Karl Bauer(4), Robby Büchner(4), Jaakko Koskelo(4), Lucia Reining(3), Azzedine Bendounan(3)