Antimatter and Nuclear Engineering

Research Output

2020

A demonstration of donor passivation through direct formation of V-As_i complexes in As-doped Ge_1−xSn_x

Khanam, A., Vohra, A., Slotte, J., Makkonen, I., Loo, R. & Pourtois, G., 15 May 2020, In : Journal of Applied Physics. 127, 9, p. 0-7 7 p.

Research output: Contribution to journalArticleScientificpeer-review

Defect-mediated metastability and carrier lifetimes in polycrystalline (Ag,Cu)(In,Ga)Se2 absorber materials

Ferguson, A., Farshchi, R., Paul, P. K., Dippo, P., Bailey, J., Poplavskyy, D., Khanam, A., Tuomisto, F., Arehart, A. & Kuciauskas, D., 2 Jun 2020, In : Journal of Applied Physics. 127, 11 p., 215702.

Research output: Contribution to journalArticleScientificpeer-review

Effect of interstitial carbon on the evolution of early-stage irradiation damage in equi-atomic FeMnNiCoCr high-entropy alloys

Lu, E., Makkonen, I., Mizohata, K., Li, Z., Räisänen, J. & Tuomisto, F., 14 Jan 2020, In : Journal of Applied Physics. 127, 2, p. 1-7 7 p., 025103.

Research output: Contribution to journalArticleScientificpeer-review

2 Citations (Scopus)

Effect of Mn and Mg dopants on vacancy defect formation in ammonothermal GaN

Heikkinen, T., Pavlov, J., Ceponis, T., Gaubas, E., Zając, M. & Tuomisto, F., 1 Oct 2020, In : Journal of Crystal Growth. 547, 125803.

Research output: Contribution to journalArticleScientificpeer-review

Interfacial N Vacancies in GaN/(Al,Ga)N/GaN Heterostructures

Prozheeva, V., Makkonen, I., Li, H., Keller, S., Mishra, U. K. & Tuomisto, F., Mar 2020, In : Physical Review Applied. 13, 4, p. 1-7 7 p., 044034.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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12 Downloads (Pure)

Point defects in oxide and nitride compounds, alloys and heterostructures

Prozheeva, V., 2020, Aalto University. 121 p.

Research output: ThesisDoctoral ThesisCollection of Articles

Open Access

Segregation of Ni at early stages of radiation damage in NiCoFeCr solid solution alloys

Tuomisto, F., Makkonen, I., Heikinheimo, J., Granberg, F., Djurabekova, F., Nordlund, K., Velisa, G., Bei, H., Xue, H., Weber, W. J. & Zhang, Y., 1 Sep 2020, In : Acta Materialia. 196, p. 44-51 8 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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2 Downloads (Pure)

Source/Drain Materials for Ge nMOS Devices: Phosphorus Activation in Epitaxial Si, Ge, Ge1-xSnx and SiyGe1-x-ySnx

Vohra, A., Makkonen, I., Pourtois, G., Slotte, J., Porret, C., Rosseel, E., Khanam, A., Tirrito, M., Douhard, B., Loo, R. & Vandervorst, W., 7 May 2020, In : ECS Journal of Solid State Science and Technology. 9, 4, p. 1-13 13 p.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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4 Downloads (Pure)

Thermochemical and thermomechanical modeling of nuclear fuel

Loukusa, H., 2020, Aalto University. 169 p.

Research output: ThesisDoctoral ThesisCollection of Articles

TiSrantisite: An abundant point defect in SrTiO3

Karjalainen, A., Prozheeva, V., Makkonen, I., Guguschev, C., Markurt, T., Bickermann, M. & Tuomisto, F., 28 Jun 2020, In : Journal of Applied Physics. 127, 24, 9 p., 245702.

Research output: Contribution to journalArticleScientificpeer-review

Vacancy cluster growth and thermal recovery in hydrogen-irradiated tungsten

Zibrov, M., Egger, W., Heikinheimo, J., Mayer, M. & Tuomisto, F., 1 Apr 2020, In : Journal of Nuclear Materials. 531, 152017.

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)
2019

A large deformation model for chemoelastic porous media - Bentonite clay in spent nuclear fuel disposal

Pulkkanen, V-M., 2019, Aalto University. 263 p.

Research output: ThesisDoctoral ThesisMonograph

Control of Vacancy Defects in Reactively Sputtered (Ag,Cu)(In,Ga)Se2 Solar Cells

Farshchi, R., Bailey, J., Poplavskyy, D., Hickey, B., Spaulding, D., Kuan, E. T., Khanam, A. & Tuomisto, F., 1 Jun 2019, 2019 IEEE 46th Photovoltaic Specialists Conference, PVSC 2019. IEEE, p. 3198-3200 3 p. 8980772. (Conference Record of the IEEE Photovoltaic Specialists Conference).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Direct observation of mono-vacancy and self-interstitial recovery in tungsten

Heikinheimo, J., Mizohata, K., Räisänen, J., Ahlgren, T., Jalkanen, P., Lahtinen, A., Catarino, N., Alves, E. & Tuomisto, F., 1 Feb 2019, In : APL Materials. 7, 2, p. 1-7 021103.

Research output: Contribution to journalArticleScientificpeer-review

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7 Citations (Scopus)
121 Downloads (Pure)

Evolution of phosphorus-vacancy clusters in epitaxial germanium

Vohra, A., Khanam, A., Slotte, J., Makkonen, I., Pourtois, G., Loo, R. & Vandervorst, W., 14 Jan 2019, In : Journal of Applied Physics. 125, 2, 025701.

Research output: Contribution to journalArticleScientificpeer-review

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6 Citations (Scopus)
28 Downloads (Pure)

Ga vacancies and electrical compensation in β-Ga 2 O 3 thin films studied with positron annihilation spectroscopy

Tuomisto, F., Karjalainen, A., Prozheeva, V., Makkonen, I., Wagner, G. & Baldini, M., 1 Jan 2019, Oxide-Based Materials and Devices X. Rogers, D. J., Teherani, F. H. & Look, D. C. (eds.). p. 1-8 1091910. (Proceedings of SPIE; vol. 10919).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Open Access
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138 Downloads (Pure)

Heavily phosphorus doped germanium: Strong interaction of phosphorus with vacancies and impact of tin alloying on doping activation

Vohra, A., Khanam, A., Slotte, J., Makkonen, I., Pourtois, G., Porret, C., Loo, R. & Vandervorst, W., 14 Jun 2019, In : Journal of Applied Physics. 125, 22, p. 1-7 7 p., 225703.

Research output: Contribution to journalArticleScientificpeer-review

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1 Citation (Scopus)
1 Downloads (Pure)

Measurement of the 2(+) -> 0(+) ground-state transition in the beta decay of F-20

Kirsebom, O. S., Hukkanen, M., Kankainen, A., Trzaska, W. H., Stroemberg, D. F., Martinez-Pined, G., Andersen, K., Bodewits, E., Brown, B. A., Canete, L., Cederkall, J., Enqvist, T., Eronen, T., Fynbo, H. O. U., Geldhof, S., de Groote, R., Jenkins, D. G., Jokinen, A., Joshi, P., Khanam, A. & 21 others, Kostensalo, J., Kuusiniemi, P., Langanke, K., Moore, T. J. T., Munch, M., Nesterenko, D. A., Ovejas, J. D., Penalla, H., Pohjalainen, T., Reponen, M., Rinta-Antila, S., Riisager, K., de Roubin, A., Schotanus, P., Srivastava, P. C., Suhonen, J., Swartz, J. A., Tengblad, O., Vilen, M., Vinals, S. & Aysto, J., 24 Dec 2019, In : PHYSICAL REVIEW C. 100, 6, p. 1-12 12 p., 065805.

Research output: Contribution to journalArticleScientificpeer-review

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Spectroscopy of defects in neutron irradiated ammono-thermal GaN by combining photoionization, photoluminescence and positron annihilation techniques

Pavlov, J., Ceponis, T., Deveikis, L., Heikkinen, T., Raisanen, J., Rumbauskas, Tamulaitis, G., Tuomisto, F. & Gaubas, E., 2019, In : LITHUANIAN JOURNAL OF PHYSICS. 59, 4, p. 211-223 13 p.

Research output: Contribution to journalArticleScientificpeer-review

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15 Downloads (Pure)

SYP2019 - Suomalaisen Ydintekniikan Päivät alkavat olla perinne

Ala-Heikkilä, J. & Rantala, T., 2019, In : ATS Ydintekniikka. 48, 4, p. 6-9 4 p.

Research output: Contribution to journalArticleProfessional

Open Access

Unusual properties of the RY3 center in GaN

Reshchikov, M. A., Sayeed, R. M., Ozgur, U., Demchenko, D. O., McNamara, J. D., Prozheeva, Tuomisto, F., Helava, H., Usikov, A. & Makarov, Y., 18 Jul 2019, In : Physical Review B. 100, 4, p. 1-19 19 p., 045204.

Research output: Contribution to journalArticleScientificpeer-review

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3 Citations (Scopus)
93 Downloads (Pure)
2018

15 years of the European Nuclear Education Network (ENEN Association)

Cizelj, L., Starflinger, J., Decobert, V., Bazargan-Sabet, B., Tuomisto, F., Coeck, M., Anzieu, P., Roberts, J., Wheldon, T. K. & Porras, P. D., 1 Jan 2018, 2018 26th International Conference on Nuclear Engineering: Volume 8: Computational Fluid Dynamics (CFD); Nuclear Education and Public Acceptance. American Society of Mechanical Engineers, Vol. 8. 6 p. ICONE26-82611

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Effects of alloy composition and Si-doping on vacancy defect formation in (InxGa1- x)2O3 thin films

Prozheeva, V., Hölldobler, R., Von Wenckstern, H., Grundmann, M. & Tuomisto, F., 28 Mar 2018, In : Journal of Applied Physics. 123, 12, p. 1-6 125705.

Research output: Contribution to journalArticleScientificpeer-review

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3 Citations (Scopus)
132 Downloads (Pure)

Finnish technologies for monitoring of the Comprehensive Nuclear-Test-Ban Treaty

Ala-Heikkilä, J., Jul 2018, Cores Symposium on Radiation in the Environment: Scientific Achievements and Challenges for the Society. Salomaa, S., Lusa, M. & Vaaramaa, K. (eds.). Helsinki: STUK Säteilyturvakeskus, p. 58-61 4 p. (STUK-A; no. 261).

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientific

Hydrogen-induced strain localisation in oxygen-free copper in the initial stage of plastic deformation

Yagodzinskyy, Y., Malitckii, E., Tuomisto, F. & Hänninen, H., 2018, In : Philosophical Magazine. 98, 9, p. 727-740 14 p.

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Influence of Fermi level position on vacancy-assisted diffusion of aluminum in zinc oxide

Sky, T. N., Johansen, K. M., Venkatachalapathy, V., Svensson, B. G., Vines, L. & Tuomisto, F., 28 Dec 2018, In : Physical Review B. 98, 24, p. 1-24 245204.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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2 Citations (Scopus)
131 Downloads (Pure)

Laboratory-scale X-ray absorption spectroscopy approach for actinide research: Experiment at the uranium L3-edge

Bès, R., Ahopelto, T., Honkanen, A. P., Huotari, S., Leinders, G., Pakarinen, J. & Kvashnina, K., 15 Aug 2018, In : Journal of Nuclear Materials. 507, p. 50-53 4 p.

Research output: Contribution to journalArticleScientificpeer-review

9 Citations (Scopus)

Modelling of JET and ITER reactor relevant plasma neutron source for neutronics calculation chain

Sirén, P., 2018, Aalto University. 126 p.

Research output: ThesisDoctoral ThesisCollection of Articles

New insight in the uranium valence state determination in UyNd1−yO2±x

Bes, R., Kvashnina, K., Rossberg, A., Dottavio, G., Desgranges, L., Pontillon, Y., Solari, P. L., Butorin, S. & Martin, P., 15 Aug 2018, In : Journal of Nuclear Materials. 507, p. 145-150

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

On the Evolution of Strain and Electrical Properties in As-Grown and Annealed Si: P Epitaxial Films for Source-Drain Stressor Applications

Dhayalan, S. K., Kujala, J., Slotte, J., Pourtois, G., Simoen, E., Rosseel, E., Hikavyy, A., Shimura, Y., Loo, R. & Vandervorst, W., 2018, In : ECS Journal of Solid State Science and Technology. 7, 5, p. P228-P237 10 p.

Research output: Contribution to journalArticleScientificpeer-review

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Preface

Freitas, J. A., Tuomisto, F. & Pimputkar, S., 1 Nov 2018, In : Journal of Crystal Growth. 501, 1 p.

Research output: Contribution to journalEditorialScientificpeer-review

The ENEN+ Project: Attracting, Retaining and Developing New Nuclear Talents Beyond Academic Curricula

Cizelj, L., Pesznyak, C., Bazargan-Sabet, B., Abdelouas, A., Tuomisto, F., Coeck, M. & Porras, P. D., 2018, PROCEEDINGS OF THE 26TH INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING: Volume 8: Computational Fluid Dynamics (CFD); Nuclear Education and Public Acceptance London, England, July 22–26, 2018. American Society of Mechanical Engineers, 6 p.

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review

Trends in the valence band electronic structures of mixed uranium oxides

Kvashnina, K. O., Kowalski, P. M., Butorin, S. M., Leinders, G., Pakarinen, J., Bès, R., Li, H. & Verwerft, M., 1 Jan 2018, In : Chemical Communications. 54, 70, p. 9757-9760 4 p.

Research output: Contribution to journalArticleScientificpeer-review

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6 Citations (Scopus)
54 Downloads (Pure)

Ydinenergia-alan kesäkoululaiset Suomen Turussa

Ala-Heikkilä, J., Nov 2018, In : ATS Ydintekniikka. 47, 2, p. 8-9 2 p.

Research output: Contribution to journalArticleProfessional

2017

Amphoteric Be in GaN: Experimental Evidence for Switching between Substitutional and Interstitial Lattice Sites

Tuomisto, F., Prozheeva, V., Makkonen, I., Myers, T. H., Bockowski, M. & Teisseyre, H., 9 Nov 2017, In : Physical Review Letters. 119, 19, p. 1-5 196404.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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14 Citations (Scopus)
50 Downloads (Pure)

Applications of positron annihilation spectroscopy in nuclear materials research

Heikinheimo, J., 2017, Aalto University. 114 p.

Research output: ThesisDoctoral ThesisCollection of Articles

Open Access

Charge compensation mechanisms in U1-xGdxO2 and Th1-xGdxO2-x/2 studied by X-ray Absorption Spectroscopy

Bes, R., Pakarinen, J., Baena, A., Conradson, S., Verwerft, M. & Tuomisto, F., 2017, In : Journal of Nuclear Materials. 489, p. 9–21

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Defects in Single Crystalline Ammonothermal Gallium Nitride

Suihkonen, S., Pimputkar, S., Sintonen, S. & Tuomisto, F., Jun 2017, In : Advanced Electronic Materials. 3, 6, p. 1-18 1600496.

Research output: Contribution to journalArticleScientificpeer-review

15 Citations (Scopus)
2 Citations (Scopus)

Effects of grain size and deformation temperature on hydrogen-enhanced vacancy formation in Ni alloys

Lawrence, S. K., Yagodzinskyy, Y., Hänninen, H., Korhonen, E., Tuomisto, F., Harris, Z. D. & Somerday, B. P., 15 Apr 2017, In : Acta Materialia. 128, p. 218-226 9 p.

Research output: Contribution to journalArticleScientificpeer-review

28 Citations (Scopus)

Evaluation of the concentration of point defects in GaN

Reshchikov, M. A., Usikov, A., Helava, H., Makarov, Y. N., Prozheeva, V., Makkonen, I., Tuomisto, F., Leach, J. H. & Udwary, K., 1 Dec 2017, In : Scientific Reports. 7, 1, p. 1-11 9297.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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16 Citations (Scopus)
153 Downloads (Pure)

Evolution of the Uranium Chemical State in Mixed-Valence Oxides

Leinders, G., Bes, R., Pakarinen, J., Kvashnina, K. & Verwerft, M., 19 Jun 2017, In : Inorganic Chemistry. 56, 12, p. 6784-6787 4 p.

Research output: Contribution to journalArticleScientificpeer-review

27 Citations (Scopus)

Formation of Zn- and O- vacancy clusters in ZnO through deuterium annealing

Johansen, K. M., Tuomisto, F., Makkonen, I. & Vines, L., Oct 2017, In : MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING. 69, p. 23-27 5 p.

Research output: Contribution to journalArticleScientificpeer-review

7 Citations (Scopus)

Hole density and acceptor-type defects in MBE-grown GaSb1-x Bix

Segercrantz, N., Slotte, J., Makkonen, I., Tuomisto, F., Sandall, I. C., Ashwin, M. J. & Veal, T. D., 3 Jul 2017, In : Journal of Physics D: Applied Physics. 50, 29, p. 1-6 6 p., 295102.

Research output: Contribution to journalArticleScientificpeer-review

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7 Citations (Scopus)
155 Downloads (Pure)

Instability of the Sb vacancy in GaSb

Segercrantz, N., Slotte, J., Tuomisto, F., Mizohata, K. & Raisanen, J., 3 May 2017, In : Physical Review B. 95, 18, p. 1-5 5 p., 184103.

Research output: Contribution to journalArticleScientificpeer-review

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8 Citations (Scopus)
274 Downloads (Pure)

Intermixing studies in GaN1-xSbx highly mismatched alloys

Sarney, W. L., Svensson, S. P., Ting, M., Segercrantz, N., Walukiewicz, W., Yu, K. M., Martin, R. W., Novikov, S. V. & Foxon, C. T., 20 Jan 2017, In : Applied Optics. 56, 3, p. B64-B69

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Optoelectronic properties of III-V compounds and alloys

Segercrantz, N., 2017, Aalto University. 124 p.

Research output: ThesisDoctoral ThesisCollection of Articles

Open Access

Positron annihilation analysis of the atomic scale changes in oxidized Zircaloy-4 samples

Heikinheimo, J., Ortner, S., Makkonen, I., Kujala, J., Blackmur, M. & Tuomisto, F., 1 Nov 2017, In : Journal of Nuclear Materials. 495, p. 172-180 9 p.

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Radiation-induced alloy rearrangement in InxGa1− xN

Prozheeva, V., Makkonen, I., Cuscó, R., Artús, L., Dadgar, A., Plazaola, F. & Tuomisto, F., 27 Mar 2017, In : Applied Physics Letters. 110, 13, p. 1-4 132104.

Research output: Contribution to journalArticleScientificpeer-review

Open Access
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5 Citations (Scopus)
304 Downloads (Pure)

Subsurface damage in polishing-annealing processed ZnO substrates

Prozheeva, V., Johansen, K. M., Neuvonen, P. T., Zubiaga, A., Vines, L., Kuznetzov, A. Y. & Tuomisto, F., Oct 2017, In : MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING. 69, p. 19-22

Research output: Contribution to journalArticleScientificpeer-review

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3 Citations (Scopus)
1 Downloads (Pure)