[{"ec_funded":1,"license":"https://creativecommons.org/licenses/by/4.0/","publication":"APL Materials","ddc":["530"],"project":[{"call_identifier":"H2020","grant_number":"754411","name":"ISTplus - Postdoctoral Fellowships","_id":"260C2330-B435-11E9-9278-68D0E5697425"}],"volume":12,"abstract":[{"text":"We demonstrate ion irradiation by argon or gallium as a wafer-scale post-processing method to increase disorder in superconducting thin films. We study several widely used superconductors, both single-elements and compounds. We show that ion irradiation increases normal-state resistivity in all our films, which is expected to enable tuning their superconducting properties, for example, toward a higher kinetic inductance. We observe an increase in superconducting transition temperature for Al and MoSi and a decrease for Nb, NbN, and TiN. In MoSi, ion irradiation also improves the mixing of the two materials. We demonstrate the fabrication of an amorphous and homogeneous film of MoSi with uniform thickness, which is promising, for example, for superconducting nanowire single-photon detectors.","lang":"eng"}],"article_type":"original","day":"01","scopus_import":"1","file":[{"date_created":"2024-07-16T06:30:30Z","file_name":"2024_APLMaterial_Kohopaa.pdf","checksum":"32a5cdf0ea9c937f806b6039f3219917","content_type":"application/pdf","date_updated":"2024-07-16T06:30:30Z","access_level":"open_access","success":1,"creator":"dernst","file_size":9408198,"relation":"main_file","file_id":"17244"}],"file_date_updated":"2024-07-16T06:30:30Z","citation":{"ama":"Kohopää K, Ronzani A, Jabdaraghi RN, et al. Effect of ion irradiation on superconducting thin films. <i>APL Materials</i>. 2024;12(7). doi:<a href=\"https://doi.org/10.1063/5.0202851\">10.1063/5.0202851</a>","mla":"Kohopää, Katja, et al. “Effect of Ion Irradiation on Superconducting Thin Films.” <i>APL Materials</i>, vol. 12, no. 7, 071101, AIP Publishing, 2024, doi:<a href=\"https://doi.org/10.1063/5.0202851\">10.1063/5.0202851</a>.","ista":"Kohopää K, Ronzani A, Jabdaraghi RN, Bera A, Ribeiro M, Hazra D, Senior JL, Prunnila M, Govenius J, Lehtinen JS, Kemppinen A. 2024. Effect of ion irradiation on superconducting thin films. APL Materials. 12(7), 071101.","short":"K. Kohopää, A. Ronzani, R.N. Jabdaraghi, A. Bera, M. Ribeiro, D. Hazra, J.L. Senior, M. Prunnila, J. Govenius, J.S. Lehtinen, A. Kemppinen, APL Materials 12 (2024).","apa":"Kohopää, K., Ronzani, A., Jabdaraghi, R. N., Bera, A., Ribeiro, M., Hazra, D., … Kemppinen, A. (2024). Effect of ion irradiation on superconducting thin films. <i>APL Materials</i>. AIP Publishing. <a href=\"https://doi.org/10.1063/5.0202851\">https://doi.org/10.1063/5.0202851</a>","chicago":"Kohopää, Katja, Alberto Ronzani, Robab Najafi Jabdaraghi, Arijit Bera, Mário Ribeiro, Dibyendu Hazra, Jorden L Senior, et al. “Effect of Ion Irradiation on Superconducting Thin Films.” <i>APL Materials</i>. AIP Publishing, 2024. <a href=\"https://doi.org/10.1063/5.0202851\">https://doi.org/10.1063/5.0202851</a>.","ieee":"K. Kohopää <i>et al.</i>, “Effect of ion irradiation on superconducting thin films,” <i>APL Materials</i>, vol. 12, no. 7. AIP Publishing, 2024."},"publication_identifier":{"eissn":["2166-532X"]},"tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png"},"oa_version":"Published Version","language":[{"iso":"eng"}],"issue":"7","acknowledgement":"We thank J. A. Sauls for useful discussions. For funding of our research project, we acknowledge the European Union’s Horizon 2020 Research and Innovation Program under Grant Agreement Nos. 862660/Quantum e-leaps, 899558/aCryComm, 766853/EFINED, and ECSEL programme 101007322/MatQu. This project has also received funding from Business Finland through Quantum Technologies Industrial (QuTI) Project No. 128291 and from Research Council of Finland through Grant Nos. 310909, 350220 and Finnish Quantum Flagship project 359284. This work was performed as part of the Research Council of Finland Centres of Excellence program (Project Nos. 336817, 336819, 352934, and 352935). We also acknowledge funding from an internal strategic innovation project of VTT related to the development of quantum computing technologies. This research was supported by the Scientific Service Units of IST Austria through resources provided by Electron Microscopy Facility. J. Senior acknowledges funding from the European Union’s Horizon 2020 Research and Innovation Program under the Marie Skłodowska-Curie Grant Agreement No. 754411. A. Ronzani acknowledges funding from Research Council of Finland (Research Fellowship Project No. 356542).","intvolume":"        12","publisher":"AIP Publishing","author":[{"full_name":"Kohopää, Katja","last_name":"Kohopää","first_name":"Katja"},{"first_name":"Alberto","last_name":"Ronzani","full_name":"Ronzani, Alberto"},{"first_name":"Robab Najafi","full_name":"Jabdaraghi, Robab Najafi","last_name":"Jabdaraghi"},{"full_name":"Bera, Arijit","last_name":"Bera","first_name":"Arijit"},{"last_name":"Ribeiro","full_name":"Ribeiro, Mário","first_name":"Mário"},{"last_name":"Hazra","full_name":"Hazra, Dibyendu","first_name":"Dibyendu"},{"id":"5479D234-2D30-11EA-89CC-40953DDC885E","first_name":"Jorden L","orcid":"0000-0002-0672-9295","last_name":"Senior","full_name":"Senior, Jorden L"},{"first_name":"Mika","full_name":"Prunnila, Mika","last_name":"Prunnila"},{"full_name":"Govenius, Joonas","last_name":"Govenius","first_name":"Joonas"},{"first_name":"Janne S.","last_name":"Lehtinen","full_name":"Lehtinen, Janne S."},{"last_name":"Kemppinen","full_name":"Kemppinen, Antti","first_name":"Antti"}],"oa":1,"isi":1,"_id":"17235","doi":"10.1063/5.0202851","acknowledged_ssus":[{"_id":"EM-Fac"}],"title":"Effect of ion irradiation on superconducting thin films","year":"2024","date_updated":"2025-09-08T08:10:58Z","user_id":"317138e5-6ab7-11ef-aa6d-ffef3953e345","status":"public","has_accepted_license":"1","quality_controlled":"1","department":[{"_id":"AnHi"}],"article_processing_charge":"Yes","month":"07","publication_status":"published","date_created":"2024-07-14T22:01:11Z","article_number":"071101","external_id":{"isi":["001260942200003"]},"date_published":"2024-07-01T00:00:00Z","type":"journal_article","fulldoi":"https://doi.org/10.1063/5.0202851"},{"fulldoi":"https://doi.org/10.1063/1.4961679","DOAJ_listed":"1","date_published":"2016-08-29T00:00:00Z","type":"journal_article","date_created":"2018-12-11T11:46:09Z","article_processing_charge":"No","OA_place":"publisher","month":"08","OA_type":"gold","main_file_link":[{"url":"https://doi.org/10.1063/1.4961679","open_access":"1"}],"publication_status":"published","year":"2016","date_updated":"2026-05-12T13:05:12Z","title":"Thermoelectric properties of semiconductor-metal composites produced by particle blending","doi":"10.1063/1.4961679","quality_controlled":"1","user_id":"ba8df636-2132-11f1-aed0-ed93e2281fdd","status":"public","_id":"383","intvolume":"         4","publisher":"American Institute of Physics","publist_id":"7446","author":[{"full_name":"Liu, Yu","last_name":"Liu","orcid":"0000-0001-7313-6740","first_name":"Yu","id":"2A70014E-F248-11E8-B48F-1D18A9856A87"},{"first_name":"Doris","full_name":"Cadavid, Doris","last_name":"Cadavid"},{"first_name":"Maria","id":"43C61214-F248-11E8-B48F-1D18A9856A87","orcid":"0000-0001-5013-2843","last_name":"Ibanez Sabate","full_name":"Ibanez Sabate, Maria"},{"full_name":"Ortega, Silvia","last_name":"Ortega","first_name":"Silvia"},{"first_name":"Sara","full_name":"Márti Sánchez, Sara","last_name":"Márti Sánchez"},{"first_name":"Oleksander","full_name":"Dobrozhan, Oleksander","last_name":"Dobrozhan"},{"first_name":"Maksym","full_name":"Kovalenko, Maksym","last_name":"Kovalenko"},{"first_name":"Jordi","full_name":"Arbiol, Jordi","last_name":"Arbiol"},{"last_name":"Cabot","full_name":"Cabot, Andreu","first_name":"Andreu"}],"oa":1,"extern":"1","language":[{"iso":"eng"}],"issue":"10","oa_version":"Published Version","tmp":{"short":"CC BY (4.0)","legal_code_url":"https://creativecommons.org/licenses/by/4.0/legalcode","name":"Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)","image":"/images/cc_by.png"},"citation":{"ista":"Liu Y, Cadavid D, Ibáñez M, Ortega S, Márti Sánchez S, Dobrozhan O, Kovalenko M, Arbiol J, Cabot A. 2016. Thermoelectric properties of semiconductor-metal composites produced by particle blending. Applied Physics Letters. 4(10).","mla":"Liu, Yu, et al. “Thermoelectric Properties of Semiconductor-Metal Composites Produced by Particle Blending.” <i>Applied Physics Letters</i>, vol. 4, no. 10, American Institute of Physics, 2016, doi:<a href=\"https://doi.org/10.1063/1.4961679\">10.1063/1.4961679</a>.","ama":"Liu Y, Cadavid D, Ibáñez M, et al. Thermoelectric properties of semiconductor-metal composites produced by particle blending. <i>Applied Physics Letters</i>. 2016;4(10). doi:<a href=\"https://doi.org/10.1063/1.4961679\">10.1063/1.4961679</a>","chicago":"Liu, Yu, Doris Cadavid, Maria Ibáñez, Silvia Ortega, Sara Márti Sánchez, Oleksander Dobrozhan, Maksym Kovalenko, Jordi Arbiol, and Andreu Cabot. “Thermoelectric Properties of Semiconductor-Metal Composites Produced by Particle Blending.” <i>Applied Physics Letters</i>. American Institute of Physics, 2016. <a href=\"https://doi.org/10.1063/1.4961679\">https://doi.org/10.1063/1.4961679</a>.","ieee":"Y. Liu <i>et al.</i>, “Thermoelectric properties of semiconductor-metal composites produced by particle blending,” <i>Applied Physics Letters</i>, vol. 4, no. 10. American Institute of Physics, 2016.","apa":"Liu, Y., Cadavid, D., Ibáñez, M., Ortega, S., Márti Sánchez, S., Dobrozhan, O., … Cabot, A. (2016). Thermoelectric properties of semiconductor-metal composites produced by particle blending. <i>Applied Physics Letters</i>. American Institute of Physics. <a href=\"https://doi.org/10.1063/1.4961679\">https://doi.org/10.1063/1.4961679</a>","short":"Y. Liu, D. Cadavid, M. Ibáñez, S. Ortega, S. Márti Sánchez, O. Dobrozhan, M. Kovalenko, J. Arbiol, A. Cabot, Applied Physics Letters 4 (2016)."},"publication_identifier":{"eissn":["2166-532X"]},"abstract":[{"lang":"eng","text":"In the quest for more efficient thermoelectric material able to convert thermal to electrical energy and vice versa, composites that combine a semiconductor host having a large Seebeck coefficient with metal nanodomains that provide phonon scattering and free charge carriers are particularly appealing. Here, we present our experimental results on the thermal and electrical transport properties of PbS-metal composites produced by a versatile particle blending procedure, and where the metal work function allows injecting electrons to the intrinsic PbS host. We compare the thermoelectric performance of composites with microcrystalline or nanocrystalline structures. The electrical conductivity of the microcrystalline host can be increased several orders of magnitude with the metal inclusion, while relatively high Seebeck coefficient can be simultaneously conserved. On the other hand, in nanostructured materials, the host crystallites are not able to sustain a band bending at its interface with the metal, becoming flooded with electrons. This translates into even higher electrical conductivities than the microcrystalline material, but at the expense of lower Seebeck coefficient values."}],"volume":4,"scopus_import":"1","article_type":"original","day":"29","publication":"Applied Physics Letters"}]