TEM Gemini Centre

TEM Gemini logo

The TEM Gemini Centre is a research group consisting of professors, postdocs and students from the Department of Physics and the Department of Materials Science and Engineering at NTNU and researchers from SINTEF, synthesis and Properties in SINTEF Materials and Chemistry. We work in Materials Physics / Materials Science / Metallurgy studying a broad range of different materials on the atomic level, where the main tool is the transmission electron microscope (TEM).

More information about the research we do, the equipment we use or articles we've published.

News

   2012 

  • 09/03: Annual report 2011   released.     
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  •  29/02: Studentoppgaver TEM Gemini center høst 2012.
  • 05/01: Weekly TEM lunch started again. Every Thursday at 12.15 in D4-132 with coffee, tea and cakes. Update on equipment, other news and occasional guest speakers. 

2011

  • 22/12: Seasonal greetings from TEM Gemini Center to all our collaborators.
  • 16/12: Project presentations by Amund Utne and Jason Granholt.
  • 22/11: Annual TEM Gemini strategy meeting
  • 21/11: Prof Jian Min Zuo, University of Illinois, Urbana-Champaign will give a talk at 13.15 in room E4-107. The title is "Aberration corrected scanning transmission electron microscopy for materials and interface analysis" 
  • 31/10:    Overview available student projects within TEM Gemini center Spring 2012 published.
  • 26/10: CONGRATULATIONS!: NorTEM initiative (TEM Gemini together with structural physics group at UiO) has been granted substancial amount for upgrade and extending TEM infrastructure in Norway. See: NRF's announcement and description.
  • 22/10: Guest talk "Aberration corrected STEM" on 21/11 by Prof. dr. Jian Ming Zuo, University of Illinois, Urbana-Champaign, USA.
  • 17/10: Upgrades: EDX PC on 2010F and IMAC to replace oldest Mac. Further software upgrades scheduled.
  • 10/10: Dr Ruben Bjørge starts postdoc within the TEM group on project "Quantitative TEM".
  • 05/10: This year's Noble Price in Chemistry for Shechtman for discovering quasicrystals is a good example of the power of electron diffraction in TEM. In the late '80s some work on these quasicrystals was done in the TEM group (PhD S. Anderson).
  • 26/09: Dr Chris Boothroyd, Jülich Research Centre, Germany, "Quantitative Electron Microscopy". At 10.15 in D4-132.
  • 23/09: PhD defence Ruben Bjørge: "Scanning transmission electron microscopy studies of precipitation in Al-Mg-Ge alloys".
  • 19/09: PhD defence Espen Eberg: "Interface Effects in PbTiO3 Thin Films and Nanostructures: A Transmission Electron Microscopy Study ".
  • 15/09: Lunch talk by Ass. Prof. Shinji Muraishi, Tokyo Tech. Japan (Currently guest researcher in TEM Gemini Center): TEM study magnetic anisotropic thin films. 
  • 04/09: Guest lecture by Prof. T. Sato (Tokyo Institute of technology, Japan): "Nanocluster formation behavior in high strength aluminum"
  • 03/09: PhD defence Malin Torsæter: "Quantitative studies of clustering and precipitation in Al.Mg-Si (Cu) alloys".

  • 01/09: Vidar Fauske started a PhD in the group. His project focusses on FIB for controlled III-V nanowire growth and interfacial study of substrate-nanowire by TEM. The position is funded by NTNU Nanolab.
  • 25/08: TEM lunch with trial EMAG talks from Kauko and Børge
  • 23/08: TEM lunch schedule  talks for the Fall
  • 22/08: Ragnhild Sæterli rejoins the group as postdoc on FME Sol. Her work focusses on advanced TEM characterisation of solar cell materials.
  • 21/08: TEM group walk in Bymarka
  • 15/08: Magnus Nord started as PhD. He will be working on functional oxide thin films. The project is funded by "forskerskole nanoteknologi for mikrosystemer". 
  • 06/07: NorTEM tender annouced
  • 27/05: Tem lunch talk: Magnus Nord "Cs Corrected HRTEM and HAADF of quantum dot IBSC"
  • 20/05: Tem lunch talk: Vidar Fauske "TEM characterization of NW-substrate interfaces"
  • 06/05: Tem lunch talk: Trung Tran "Bimetallic nanoparticles: from theory to TEM characterization"
  • 02/05: TEM lunch schedule talks for the Spring
  • 01/05: Randi inradioprogramm "Abels Tårn", also about TEM aberration correction (in Norwegian, date 29/04/11) : http://www.blekk.org/index.php?p=ekko_-_et_aktuelt_samfunnsprogram 
  • 29/04: We welcome our new group member Trung Tran from Vietnam. He is a postdoc working on TEM of catalysts.
  • 15/04: Tem lunch talk: Ton van Helvoort about "Calibrations for the CM30".
  • 08/04: Tem lunch talk: Hanne Kauko, "Procedure scanning HAADF detector for quantitative HAADF".
  • 04/04: We welcome our new group member Takeshi Saito from Japan.He is a PhD student on the BILAT project. His topic is precipitates in 6xxx Al alloys,and Randi Holmestad is his supervisor.
  • 01/04: Tem lunch talk: Jelena Todorovic, "Correlated PL-TEM of heterostructured semiconducting nanowires". Jelena participated at MSMXVII in Cambridge with this talk.
  • 30/03: Half day seminar: "TEM on solar cell materials" was a big success. Everyone thanks for their contributions. TEM Gemini group member have access to the slides via internal Wiki page. 
  • 21/03 Studentoppgaver TEM Gemini center høst 2011: oversikt og presentasjon (på norsk)
  • 20/03  Annual report 2010 released
  • 18/03Katharina Teichmann presents her recent work on strain measurements around precipitates in 6xxx alloys using geometric phase analysis (GPA) in the TEM lunch meeting.
  • 10/03 TEM Gemini ski weekend in Åre
  • 25/02The TEM Gemini Center organises a workshop "TEM on solar cell materials" on Wednesday 30 March. For more information and registration click here.
  • 11/02 Demi Kepaptsoglou (UiO) will give a talk in our TEM lunch meeting called "Atomic scale characterization of interfaces in renwable energy related functional materials".
  • 03/02 Roya Dehghan presents electron tomography results from the Center as well as the tomo hardware and software present.
  • 07/01 Weekly TEM lunch meetings start again. Every Friday at 12.15! Every second Friday there is a short seminar on software tools used in ongoing TEM research. Frist seminar by Ruben Børge on HAADF multislice simulations Friday 21 January.

2010

  • 30/11/2010 Internal workshop "Digital tools in TEM" with 30 particpants. Contributions from within Centre and Paul Thomas from Gatan.
  • 15/10/2010 We have finished the new NORTEM application to the Research Council on large scale infrastructure. Cross fingers!!
  • 13/10/2010 The introduction course is now finished. About 30 participants followed the 5 2 hours lectures. 10 PhD students continue with the PhD course in TEM taught this fall.
  • 12/10/2010 Randi Hiolmestad in Adressavisen. See Webpage newspaper.
  • 15/08/2010 Welcome to two new PhD students in the group! Astrid Marie Muggerud and Sigurd Wenner has both started their PhD within different areas of Aluminium Alloys.
  • 25/06/2010 We got support for a Nordic network within TEM, NorTEMnet from NordForsk! See www.ntnu.edu/physics/nortemnet
  • 12/06/2010 Introduction course and PhD course in TEM given in the fall! pdf version can be found here.
  • 19/03/2010 Annual report for 2009 released!
  • 12/03/2010 We have updated our list of student projects for the Fall 2010.
  • 12/02/2010 Ragnhild explained the FIB for our minister of trade and industry, Trond Giske.
  • 05/02/2010 Start weekly meetings TEM Gemini Centre, 12.15 in D4-132.
  • 30/01/2010 NORTEM application round 2 (Forskningsrådets Storskala Infrastruktur) submitted. This is a collaboration between TEM Gemini Centre and Strukturfysikkgruppa at IFY/SMN UiO.
  • 14/01/2010 New PC installed in computer room for general data analysis of TEM results. At 2010F: Gatan PC upgraded and additional HD installed for data storage.
  • 03/01/2010 Welcome to our new PhD student Jon Holmestad who started a PhD within our Centre on "New aluminium alloy design through thin film technology".

2009

  • 15/12/2009 Todays FIB hands-on course dedicated to TEM specimen preparation given by Chengge Jiao (FEI) in which 7 TEM Gemini people participated. Topics: Liftout, gentle milling and milling of different geometries and materials (PbTiO3 nanostructures, grain boundaries Si solar cell, fracture surfaces in martensitic stainless steels). Thanks to Chengge Jiao for the excellent course, to NTNU Nanolab for providing the facilities and the strategic areas Materials (TSO Materialer) for financial support.
  • 01/12/2009 As a result of Kvilhaugen workshop the webpages need to be updated as TEM activities at Institute of Materials Science & Technology are now officially part of the TEM Gemini Centre. The TEM people from IMT have now access to the Gemini Center intranet pages.
  • 19-20/11/2009 Kvilhaugen workshop: "Learn to know each other seminar" for bringing new member (IMT TEM group) and established Gemini Centre members (TEM group IFY & SINTEF Materials Physics) closer to each other and establishing a fruitful cooperation.
  • 31/10/2009 The NORTEM application in collaboration with strukturfysikkgruppa ved fysikk, UiO has continued to round 2 of large scale infrastructure!!!
  • 06/07/2009 TEM activities at the Institute of Materials Science & Technology are now officially part of the TEM Gemini Centre. Welcome!

Contact details

Prof. Randi Holmestad

Office: Realfagbygget, D4-153

Phone: +47 73593880

Cell phone: +47 48170066

E-mail: randi.holmestad@ntnu.no

Homepage: http://folk.ntnu.no/randih/

Dr. John Walmsley

Office: Realfagbygget, D4-113

Cell phone: +47 98283914

E-mail: John.walmsley@sintef.no

Dr ir Antonius (Ton) T.J. van Helvoort

Office: Realfagbygget, D4-149

Phone: +47 73593637

E-mail: a.helvoort@ntnu.no

Homepage: http://folk.ntnu.no/helvoort/

Prof. Jan Ketil Solberg

Office: Bergbygget, E503

Phone: +47 73592051

E-mail: Jan.solberg@material.ntnu.no

Using the TEM