Ralf-Johan Lamminmäki

899 total citations
27 papers, 782 citations indexed

About

Ralf-Johan Lamminmäki is a scholar working on Materials Chemistry, Inorganic Chemistry and Atomic and Molecular Physics, and Optics. According to data from OpenAlex, Ralf-Johan Lamminmäki has authored 27 papers receiving a total of 782 indexed citations (citations by other indexed papers that have themselves been cited), including 24 papers in Materials Chemistry, 9 papers in Inorganic Chemistry and 7 papers in Atomic and Molecular Physics, and Optics. Recurrent topics in Ralf-Johan Lamminmäki's work include Luminescence Properties of Advanced Materials (21 papers), Lanthanide and Transition Metal Complexes (7 papers) and Inorganic Fluorides and Related Compounds (5 papers). Ralf-Johan Lamminmäki is often cited by papers focused on Luminescence Properties of Advanced Materials (21 papers), Lanthanide and Transition Metal Complexes (7 papers) and Inorganic Fluorides and Related Compounds (5 papers). Ralf-Johan Lamminmäki collaborates with scholars based in Finland, France and Poland. Ralf-Johan Lamminmäki's co-authors include Jorma Hölsä, R. T. Wegh, Andries Meijerink, H. Donker, Saila Karvinen, P. Porcher, Heikki Haario, M. Alatalo, Mika Lastusaari and Eija Säilynoja and has published in prestigious journals such as Physical review. B, Condensed matter, The Journal of Physical Chemistry C and Journal of Physics Condensed Matter.

In The Last Decade

Ralf-Johan Lamminmäki

27 papers receiving 769 citations

Peers

Ralf-Johan Lamminmäki

EEE

RESE

Anthony L. Diaz United States

Rachid Mahiou France

Hong-Gang Liu China

Thomas Juestel Germany

Yu‐Feng Lin Taiwan

Haiyong Ni China

G. Sivaramaiah India

P. N. Yocom United States

Shaozhe Lü China

Anthony L. Diaz United States

Ralf-Johan Lamminmäki

788 ×1.2

297 ×1.3

EEE

78 ×0.5

RESE

136 ×0.9

66 ×0.4

Citations per year, relative to Ralf-Johan Lamminmäki Ralf-Johan Lamminmäki (= 1×) peers Anthony L. Diaz

Countries citing papers authored by Ralf-Johan Lamminmäki

Since Specialization

Citations

This map shows the geographic impact of Ralf-Johan Lamminmäki's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Ralf-Johan Lamminmäki with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Ralf-Johan Lamminmäki more than expected).

Fields of papers citing papers by Ralf-Johan Lamminmäki

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Ralf-Johan Lamminmäki. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Ralf-Johan Lamminmäki. The network helps show where Ralf-Johan Lamminmäki may publish in the future.

Co-authorship network of co-authors of Ralf-Johan Lamminmäki

This figure shows the co-authorship network connecting the top 25 collaborators of Ralf-Johan Lamminmäki. A scholar is included among the top collaborators of Ralf-Johan Lamminmäki based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Ralf-Johan Lamminmäki. Ralf-Johan Lamminmäki is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Taavitsainen, Veli‐Matti, et al.. (2015). Modeling TiO2׳s refractive index function from bulk to nanoparticles. Journal of Quantitative Spectroscopy and Radiative Transfer. 167. 105–118. 19 indexed citations

Alatalo, M., et al.. (2013). Refractive Index Functions of TiO₂ Nanoparticles. The Journal of Physical Chemistry C. 117(7). 3503–3512. 29 indexed citations

Tkachenko, Nikolai V., et al.. (2005). Femtosecond to nanosecond spectroscopy of transition metal-doped TiO2 particles. Journal of Photochemistry and Photobiology A Chemistry. 175(1). 8–14. 19 indexed citations

Tkachenko, Nikolai V., et al.. (2004). The effect of calcination on photocatalytic activity of TiO2 particles: femtosecond study. Journal of Photochemistry and Photobiology A Chemistry. 163(3). 395–401. 22 indexed citations

Peijzel, P.S., R. T. Wegh, Andries Meijerink, Jorma Hölsä, & Ralf-Johan Lamminmäki. (2002). High energy levels and high-energetic emissions of the trivalent holmium ion in LiYF4 and YF3. Optics Communications. 204(1-6). 195–202. 17 indexed citations

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, & P. Porcher. (2001). Simulation of the Gd3+ energy level scheme in GdOCl. Journal of Alloys and Compounds. 323-324. 811–815. 18 indexed citations

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, P. Porcher, & R. Sáez Puche. (2000). Simulation of the spectroscopic and magnetic properties of RE(III) ions in RE oxychlorides based on exact crystal structure from Rietveld refinements. Journal of Alloys and Compounds. 300-301. 45–54. 12 indexed citations

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, P. Porcher, & R. Sáez-Puche. (2000). Simulation of the paramagnetic susceptibility in rare earth oxychlorides. Journal of Alloys and Compounds. 303-304. 498–504. 10 indexed citations

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, et al.. (2000). Parametric analysis of the energy level scheme of Ho3+ in HoOCl. Journal of Luminescence. 87-89. 1052–1055. 3 indexed citations

10.

Hölsä, Jorma, et al.. (1998). Analysis of the energy level scheme of Nd in NdOBr. Annales de Chimie Science des Matériaux. 23(1-2). 281–284. 4 indexed citations

11.

Hölsä, Jorma, Ralf-Johan Lamminmäki, & P. Porcher. (1998). Simulation of the energy levels of Dy3+ in DyOCl. Journal of Alloys and Compounds. 275-277. 398–401. 7 indexed citations

12.

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, et al.. (1998). Parametric analysis of the energy level scheme of Pr3+ in La2O2CN2. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 54(13). 2065–2069. 19 indexed citations

13.

Hölsä, Jorma, Ralf-Johan Lamminmäki, P. Porcher, P.J. Dereń, & W. Stręk. (1998). Optical properties of the Dy3+ ion in DyOCl. Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy. 54(13). 2189–2195. 4 indexed citations

14.

Hölsä, Jorma, Ralf-Johan Lamminmäki, Mika Lastusaari, P. Porcher, & Eija Säilynoja. (1998). Crystal field effect in RE3+-doped lanthanum oxycyanamide, La2O2CN2:RE3+ (RE3+=Pr3+ and Eu3+). Journal of Alloys and Compounds. 275-277. 402–406. 14 indexed citations

15.

Hölsä, Jorma, Kari Koski, Ralf-Johan Lamminmäki, Hanna Rahiala, & Eija Säilynoja. (1997). Application of Bond Valence Model to Stability of RE Oxycompounds. Acta Physica Polonica A. 91(3). 563–568. 2 indexed citations

16.

Wegh, R. T., H. Donker, Andries Meijerink, Ralf-Johan Lamminmäki, & Jorma Hölsä. (1997). Vacuum-ultraviolet spectroscopy and quantum cutting forGd3+inLiYF4. Physical review. B, Condensed matter. 56(21). 13841–13848. 247 indexed citations

17.

Hölsä, Jorma, Eija Säilynoja, Ralf-Johan Lamminmäki, et al.. (1997). Crystal field energy level scheme of Er3+ in GdOCl Parametric analysis. Journal of the Chemical Society Faraday Transactions. 93(13). 2241–2246. 11 indexed citations

18.

Hölsä, Jorma, Kari Koski, Ralf-Johan Lamminmäki, et al.. (1997). Crystal fields in (La1−Gd )OCl:Eu3+ solid solutions. Journal of Alloys and Compounds. 250(1-2). 370–374. 3 indexed citations

19.

Beaury, L., Jorma Hölsä, J.C. Krupa, et al.. (1996). Energy Level Scheme of Nd³⁺Ion in Rare Earth Oxyhalides, REOX (X = F, Cl, and Br). Acta Physica Polonica A. 90(6). 1203–1213. 14 indexed citations

20.

Hölsä, Jorma, Ralf-Johan Lamminmäki, Željka Antić, M. Lemaı̂tre-Blaise, & P. Porcher. (1995). Observation and simulation of the energy levels of the trivalent thulium ion in gadolinium oxychloride. Journal of Physics Condensed Matter. 7(26). 5127–5138. 15 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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