Prof. Dr. Alfred Ludwig

Prof. Dr.-Ing. Alfred Ludwig studied mechanical engineering at the University of Karlsruhe, specializing in materials science and microsystems technology. In 1999 he received the title "Dr.-Ing." from the University of Karlsruhe for his research on nanoscale magnetoelastic multilayer coatings, carried out at the Institute of Materials Research of the Forschungszentrum Karlsruhe. He then moved to the caesar research center in Bonn, in the "Smart Materials" group, where he developed high-frequency magnetoelastic coatings and devices. From December 2002 to September 2007, he was junior professor for "Werkstoffe der Mikrotechnik" at the Faculty of Mechanical Engineering of the Ruhr University Bochum (RUB) and at the same time head of the caesar research group "Combinatorial Materials Science". From October 2007 to 2012, he received a Heisenberg Professorship of the German Research Foundation for "Materials of Microtechnology" at RUB. Since the end of 2012, he has been a chair holder at RUB. From 2011 to 2016, he was coordinator of the inter-faculty "Materials Research Department" at RUB. He initiated and organized the new research building ZGH (Center for Interfacially Dominated High Performance Materials), of which he is scientific director since 2019. His research interests include high-throughput processes and MEMS tools for materials science, nanoscale layers, multifunctional materials (e.g., conventional and ferromagnetic shape memory alloys), and new materials for energy applications (e.g., materials for solar water splitting, electrocatalysts, thermoelectrics, ...). He has published more than 340 articles, more than 300 of them in peer-reviewed journals. Since 2022 he is Director of the Research Center Future Energy Materials and Systems (RC FEMS). He is PI in a new ERC Synergy Grant project (DEMI) and spokesperson of the new SFB 1625 (both projects start in 2024).

https://www.mdi.ruhr-uni-bochum.de/mdi/index.html.en

Publications

  • 2009
2009
  • article
article2009R. ZarnettaE. ZelayaG. EggelerA. Ludwig

Influence of precipitates on the thermal hysteresis of Ti-Ni-Pd shape memory thin films

R. Zarnetta, E. Zelaya, G. Eggeler, A. Ludwig:
Scripta Materialia (2009)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-58049204306&doi=10.1016%2fj.scriptamat.2008.11.001&partnerID=40&md5=da3aed10d8b8e427c2b670391a480384https://dx.doi.org/10.1016/j.scriptamat.2008.11.001
2009
  • article
article2009Christian KleverMichael StüberHarald LeisteEberhard NoldKlaus SeemannSven UlrichHayo BrunkenAlfred LudwigClaas ThedeEckhard Quandt

Multifunctional FeCo/TiN multilayer thin films with combined magnetic and protective properties

Christian Klever, Michael Stüber, Harald Leiste, Eberhard Nold, Klaus Seemann, Sven Ulrich, Hayo Brunken, Alfred Ludwig, Claas Thede, Eckhard Quandt:
Advanced Engineering Materials (2009)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-73849120791&doi=10.1002%2fadem.200900214&partnerID=40&md5=8657d773d17d47bc8ea71b0034fc377ehttps://dx.doi.org/10.1002/adem.200900214
2009
  • article
article2009R. ZarnettaD. KönigC. ZamponiA. AghajaniJ. FrenzelG. EggelerA. Ludwig

R-phase formation in Ti39Ni45Cu16 shape memory thin films and bulk alloys discovered by combinatorial methods

R. Zarnetta, D. König, C. Zamponi, A. Aghajani, J. Frenzel, G. Eggeler, A. Ludwig:
Acta Materialia (2009)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-67650112869&doi=10.1016%2fj.actamat.2009.05.014&partnerID=40&md5=558a75c1638624500b02f7112f3a04c1https://dx.doi.org/10.1016/j.actamat.2009.05.014
2009
  • article
article2009Cezarina C. MardareMichael SpiegelAlan SavanAlfred Ludwig

Thermally oxidized Mn-Co thin films as protective coatings for SOFC interconnects

Cezarina C. Mardare, Michael Spiegel, Alan Savan, Alfred Ludwig:
Journal of the Electrochemical Society (2009)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-70350742941&doi=10.1149%2f1.3240597&partnerID=40&md5=ea43e6d443e73b06abe4dd7025ccc326https://dx.doi.org/10.1149/1.3240597
  • 2008
2008
  • article
article2008R. LöbelS. ThienhausA. SavanA. Ludwig

Combinatorial fabrication and high-throughput characterization of a Ti-Ni-Cu shape memory thin film composition spread

R. Löbel, S. Thienhaus, A. Savan, A. Ludwig:
Materials Science and Engineering: A (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-41949121567&doi=10.1016%2fj.msea.2007.02.168&partnerID=40&md5=e91753180dc4a43d51135979e30acda8https://dx.doi.org/10.1016/j.msea.2007.02.168
2008
  • article
article2008Nikolay ZotovJürgen FeydtAlfred Ludwig

Dependence of grain sizes and microstrains on annealing temperature in Fe/Pt multilayers and L10 FePt thin films

Nikolay Zotov, Jürgen Feydt, Alfred Ludwig:
Thin Solid Films (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-55049103853&doi=10.1016%2fj.tsf.2008.06.062&partnerID=40&md5=19e64a99eef8b791a9f1018dca274f45https://dx.doi.org/10.1016/j.tsf.2008.06.062
2008
  • article
article2008Alfred LudwigRobert ZarnettaSven HamannAlan SavanSigurd Thienhaus

Development of multifunctional thin films using high-throughput experimentation methods

Alfred Ludwig, Robert Zarnetta, Sven Hamann, Alan Savan, Sigurd Thienhaus:
International Journal of Materials Research (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-55049113624&doi=10.3139%2f146.101746&partnerID=40&md5=1bb7de5aa95a069cb2dcebb4f9f5043ahttps://dx.doi.org/10.3139/146.101746
2008
  • article
article2008Nikolay ZotovAlfred Ludwig
2008
  • article
article2008Cezarina C. MardareHenrik AstemanMichael SpiegelAlan SavanAlfred Ludwig

Investigation of thermally oxidised Mn-Co thin films for application in SOFC metallic interconnects

Cezarina C. Mardare, Henrik Asteman, Michael Spiegel, Alan Savan, Alfred Ludwig:
Applied Surface Science (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-57049104525&doi=10.1016%2fj.apsusc.2008.06.052&partnerID=40&md5=b634f2d1330d663da891eb6a62c69d94https://dx.doi.org/10.1016/j.apsusc.2008.06.052
2008
  • article
article2008Cezarina C. MardareMichael SpiegelAlan SavanAlfred Ludwig

Investigation of thin coatings from Mn-Co-Fe system deposited by PVD on metallic interconnects for SOFC Applications

Cezarina C. Mardare, Michael Spiegel, Alan Savan, Alfred Ludwig:
Materials Science Forum (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-58049202059&doi=10.4028%2fwww.scientific.net%2fmsf.595-598.797&partnerID=40&md5=2c4aa6fae7889011459d82dedf390a43https://dx.doi.org/10.4028/www.scientific.net/msf.595-598.797
2008
  • conference
conference2008Cezarina C. MardareMichael SpiegelAlan SavanAlfred Ludwig

Investigation of thin film Mn-Co-Fe spinel oxide coatings deposited by RF-magnetron sputtering on metallic interconnects for SOFC applications

Cezarina C. Mardare, Michael Spiegel, Alan Savan, Alfred Ludwig:
TMS Annual Meeting (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-53849101426&partnerID=40&md5=16bab419e99b7cfe544fa5213258188e
2008
  • article
article2008J. BuschbeckO. HeczkoA. LudwigS. FählerL. Schultz

Magnetic properties of epitaxial Fe-Pd films measured at elevated temperatures

J. Buschbeck, O. Heczko, A. Ludwig, S. Fähler, L. Schultz:
Journal of Applied Physics (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-42149182361&doi=10.1063%2f1.2838986&partnerID=40&md5=038c3f1dcacca56fc072fe2ed22ba5b7https://dx.doi.org/10.1063/1.2838986
2008
  • article
article2008S. HamannM. EhmannS. ThienhausA. SavanA. Ludwig

Micro-hotplates for high-throughput thin film processing and in situ phase transformation characterization

S. Hamann, M. Ehmann, S. Thienhaus, A. Savan, A. Ludwig:
Sensors and Actuators, A: Physical (2008)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-49649129854&doi=10.1016%2fj.sna.2008.05.007&partnerID=40&md5=19d60c21713fca94bde03ccf8e978923https://dx.doi.org/10.1016/j.sna.2008.05.007
  • 2007
2007
  • article
article2007N. ZotovA. Ludwig
2007
  • article
article2007R. ZarnettaA. SavanS. ThienhausA. Ludwig

Combinatorial study of phase transformation characteristics of a Ti-Ni-Pd shape memory thin film composition spread in view of microactuator applications

R. Zarnetta, A. Savan, S. Thienhaus, A. Ludwig:
Applied Surface Science (2007)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-36148988411&doi=10.1016%2fj.apsusc.2007.03.074&partnerID=40&md5=df669028e7665524464af67782a90453https://dx.doi.org/10.1016/j.apsusc.2007.03.074
2007
  • article
article2007A. LudwigJ. CaoA. SavanM. Ehmann

High-throughput characterization of hydrogen storage materials using thin films on micromachined Si substrates

A. Ludwig, J. Cao, A. Savan, M. Ehmann:
Journal of Alloys and Compounds (2007)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-35148858501&doi=10.1016%2fj.jallcom.2007.01.069&partnerID=40&md5=beee92d782172ea6709f3e3d58aed021https://dx.doi.org/10.1016/j.jallcom.2007.01.069
2007
  • article
article2007A. LudwigJ. CaoB. DamR. Gremaud

Opto-mechanical characterization of hydrogen storage properties of Mg-Ni thin film composition spreads

A. Ludwig, J. Cao, B. Dam, R. Gremaud:
Applied Surface Science (2007)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-36049018008&doi=10.1016%2fj.apsusc.2007.05.093&partnerID=40&md5=3b7a636ee5a6f598cf4281ddb3dca842https://dx.doi.org/10.1016/j.apsusc.2007.05.093
  • 2006
2006
  • article
article2006Jun CuiYong S. ChuOlugbenga O. FamoduYasubumi FuruyaJae Hattrick-SimpersRichard D. JamesAlfred LudwigSigurd ThienhausManfred WuttigZhiyong ZhangIchiro Takeuchi

Combinatorial search of thermoelastic shape-memory alloys with extremely small hysteresis width

Jun Cui, Yong S. Chu, Olugbenga O. Famodu, Yasubumi Furuya, Jae Hattrick-Simpers, Richard D. James, Alfred Ludwig, Sigurd Thienhaus, Manfred Wuttig, Zhiyong Zhang, Ichiro Takeuchi:
Nature Materials (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33645635186&doi=10.1038%2fnmat1593&partnerID=40&md5=04e1847fe516fa8b80087c70f160068ehttps://dx.doi.org/10.1038/nmat1593
2006
  • conference
conference2006Sigurd ThienhausRobert HiergeistAlan SavanAlfred Ludwig

Design and application of gradient annealing devices for the parallel thermal processing of Fe/Pt multilayers

Sigurd Thienhaus, Robert Hiergeist, Alan Savan, Alfred Ludwig:
Materials Research Society Symposium Proceedings (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33745446724&partnerID=40&md5=7f784bfab7f6219908b4eaf4af763960
2006
  • conference
conference2006S. ThienhausC. ZamponiH. RumpfJ. Hattrick-SimpersI. TakeuchiA. Ludwig

High-throughput characterization of shape memory thin films using automated temperature-dependent resistance measurements

S. Thienhaus, C. Zamponi, H. Rumpf, J. Hattrick-Simpers, I. Takeuchi, A. Ludwig:
Materials Research Society Symposium Proceedings (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33745428776&partnerID=40&md5=d8003c35eeef7d048f21dcd5c2b436a7
2006
  • article
article2006Nikolay ZotovJürgen FeydtAlan SavanAlfred Ludwig

Interdiffusion in Fe-Pt multilayers

Nikolay Zotov, Jürgen Feydt, Alan Savan, Alfred Ludwig:
Journal of Applied Physics (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33750017576&doi=10.1063%2f1.2355552&partnerID=40&md5=41e3672b0171f71e1e3d8b0e72ea4967https://dx.doi.org/10.1063/1.2355552
2006
  • article
article2006A. LudwigN. ZotovA. SavanS. Groudeva-Zotova

Investigation of hard magnetic properties in the Fe-Pt system by combinatorial deposition of thin film multilayer libraries

A. Ludwig, N. Zotov, A. Savan, S. Groudeva-Zotova:
Applied Surface Science (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-31344451702&doi=10.1016%2fj.apsusc.2005.04.058&partnerID=40&md5=cb000d64edc7f8a93c2e1ad8d0b06ff3https://dx.doi.org/10.1016/j.apsusc.2005.04.058
2006
  • article
article2006S. Groudeva-ZotovaH. KarlA. SavanJ. FeydtB. WehnerT. WaltherN. ZotovB. StritzkerA. Ludwig

Structural and magnetic characteristics of FeCo thin films modified by combinatorial ion implantation

S. Groudeva-Zotova, H. Karl, A. Savan, J. Feydt, B. Wehner, T. Walther, N. Zotov, B. Stritzker, A. Ludwig:
Thin Solid Films (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-28044465760&doi=10.1016%2fj.tsf.2005.08.279&partnerID=40&md5=0831693f73b09326a64ff840ff22afdahttps://dx.doi.org/10.1016/j.tsf.2005.08.279
2006
  • article
article2006N. ZotovJ. FeydtT. WaltherA. Ludwig

Structure of PtFe/Fe double-period multilayers investigated by X-ray diffraction, reflectivity, diffuse scattering and TEM

N. Zotov, J. Feydt, T. Walther, A. Ludwig:
Applied Surface Science (2006)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-33750499298&doi=10.1016%2fj.apsusc.2006.05.105&partnerID=40&md5=d5a148a8a129355a07b560dd63d50c62https://dx.doi.org/10.1016/j.apsusc.2006.05.105
  • 2005
2005
  • article
article2005Harsh Deep ChopraMatthew R. SullivanA. LudwigE. Quandt

Magnetoelastic and magnetostatic interactions in exchange-spring multilayers

Harsh Deep Chopra, Matthew R. Sullivan, A. Ludwig, E. Quandt:
Physical Review B - Condensed Matter and Materials Physics (2005)

https://www.scopus.com/inward/record.uri?eid=2-s2.0-80155129201&doi=10.1103%2fPhysRevB.72.054415&partnerID=40&md5=f0b2a11ee1ccfcc002568c5903b2dcb1https://dx.doi.org/10.1103/PhysRevB.72.054415