News

April 30, 2021

The installation of our new high temperature heating chamber is now complete. Many thanks to the mechanical workshop at Aarhus University for the welding, and to the mechanical workshop at NTNU for the rest of the fabrication. Of course; thanks too to everyone in my group who helped!

April 19, 2021

Our work on "Electronic and structural properties of the natural dyes curcumin, bixin and indigo" is now published in RSC Advances.

Thanks especially to our collaborators in Brazil, and our former student Annika for making this happen!

February 9, 2021

Our work on "Low-Temperature Growth of Graphene on a Semiconductor" is now published in J. Phys. Chem. C.

Thanks especially to Håkon Røst who co-ordinated this.

Low Temperature Growth of Graphene on Semiconductor

1st February 2021

Our collaborative work on helium scattering has now been published. Thanks mostly to Prof. Bodil Holst (UiB) for making this happen.

"Material properties particularly suited to be measured with helium scattering..."


14th November 2020

Latest results on hBN from the nanoESCA. Thanks for Branson (Sintef, Oslo) for exfoliating the hBN flake onto the surface for us.

hBN nanoEsca

1st September 2020

Anna Cecilie Åsland joins our group as Ph.D. student.

After visiting in 2019/2020 and completing his Ph.D in the summer, Dr. Hu Jinbang rejoins our group as PostDoc for the next 3 years.

Welcome both!


1st August 2020

I am now appointed as Adjunct Prof. in the Semiconductor Physics group at the Department of Physics at the University of Oslo.


16th June 2020

Congratulations to our postdoc Nina, who published a new article today

(containing XPS from our lab, but otherwise based on work from her previous position in biophysics).

"Impact of Silanization Parameters and Antibody Immobilization Strategy on Binding Capacity of Photonic Ring Resonators"

1st June 2020

Our latest work is published in `Quantum Materials'. Thanks to everyone involved in this collaboration.

"The sub-band structure of atomically sharp dopant profiles in silicon"


26th March 2020

One more paper published, and our first ever cover! Once again, this is in collaboration with the group of Prof. Song in Shanghai

Direct Synthesis of Semimetal Phthalocyanines on Surface with Insights Into Interfacial Properties

The Journal of Physical Chemistry C, https://doi.org/10.1021/acs.jpcc.0c00895

cover

10th March 2020

Due to all the construction and testing with our new spin-nanoesca, I've fallen behind with updating our publications.

Here are three from 2020:

Observation and origin of the Delta manifold in Si:P delta-layers

PRB 12:121402 (05/03/2020), collaborators include Ann-Julie, Philip and Jill from Aarhus.

Ullmann coupling of 2, 7-dibromopyrene on Au (111) assisted by surface adatoms

Applied Surface Science, 513:145797 (20/02/2020), in collaboration with Prof. Song's group in Shanghai.

The occupied electronic structure of ultrathin boron doped diamond

Nanoscale Advances, DOI: 10.1039/C9NA00593E (24/02/2020), collaborators include Alex and Richard from the Diamond Electronics Group in London.


6th March 2020

First spin-resolved ARPES data from the spin-filtered NanoEsca!

Bi(111) spin ARPES

[Sample is Bi(111), and the two greyscale images are the raw signal at the two working points of the spin filter. The right hand panel is the difference. The energy is just below the Fermi energy.]


14th February 2020

Rajesh looking worried whilst supervising the removal of the Phoibos from the old STM chamber

Worried Rajesh

Fixing the iris mechanism, removing zinc and recoating with aerodag

Fixing the iris

Mounting the phoibos on our new prep/XPS chamber

mounting on the new prep chamber

6th February 2020

Last day of installation

Last day of installation

First spin resolved images after installation

First spin resolved images after installation

Final discussions after signing the acceptance documents

Justin argues with Han

1st February 2020

First preparation and transfer of a sample (Ag(111)) for the NanoEsca

First preparation and transfer

Young Frode is happy with the first ARPES acquisition!

Young Frode is happy

17th January 2020

Coupling of the new NanoESCA with our homemade prep chamber

completed transfer

(and a champagne celebration moment!)

champagne moment

20th December 2019

First UHV in the XPS/ARPES/Preparation Chamber!

18th December 2019

Delivery of the NanoEsca, and successful manoeuvring into the lab!

new nanoesca in the lab

5th December 2019

Today we did the first pumping and baking of our new XPS/ARPES/Preparation instrument!

new prep chamber

27th November 2019

The first spin-resolved signal from our new spin-PEEM which is under construction by Focus and Scienta-Omicron!

Thanks to everyone who has worked hard on this project.


19th November 2019

Our latest work on silicon delta layers is now available on ArXiv:

Observation and origin of the Δ-manifold in Si:P δ-layers


1st November 2019

Dr. Rajesh Chellappan has started work as our Lab Manager


11th September 2019

Thanks to Timini and all the present and former nanostudents for my great honour!

[The thing in the frame is a silicon wafer, and the writing is pure gold]

Timini award!

1st July 2019

Our latest manuscript: "The occupied electronic structure of ultrathin boron doped diamond" is now on ArXiv

Thanks to all the co-authors for their work on this!


11th June 2019

As part of our ongoing collaboration with Prof. Song and the Chinese Academy of Science,

we welcome Jinbang Hu to the group as a visiting student for ~6 months.


6th May 2019

The new paper from the collaboration with Jinbang and Prof. Song's group is now published!

"Structural transformation of 2, 7‐dibromopyrene on Au (111) mediated by halogen‐bonding motifs"


24th April 2019

Our latest work on silicon delta-layers is now available on ArXiv

"The Sub-band Structure of Atomically Sharp Dopant Profiles in Silicon"


15th February 2019

Signed the contract for our new spin resolved and spatially resolved momentum microscope in Uppsala.

Delivery is preliminarily scheduled for the end of 2019


25th January 2019

Our latest work on topological metals has been published in PRB:

"Strong-coupling charge density wave in a one-dimensional topological metal"


15th November 2018

Our latest work on electron phonon interactions has been accepted in PRB:

"Phonon-induced linewidths of graphene electronic states"

(ArXiv link)


1st September 2018

We welcome our new Ph.D. student, Håkon Røst, to the group!


26th August 2018

Our latest work on electron phonon interactions is now available as a preprint on ArXiv

"Phonon-induced linewidths of graphene electronic states"

https://arxiv.org/abs/1808.08620


24th August 2018

Our latest work in collaboration woth Prof. Fei Song (Chinese Academy of Science and Shanghai Synchrotron) has been published by ACS:

"Fabricating Quasi Free-Standing Graphene on a SiC(0001) Surface by the Steerable Intercalation of Iron"

J. Phys. Chem. C, Just Accepted Manuscript, DOI: 10.1021/acs.jpcc.8b06789


30th March 2018

Our latest work on chemotherapy drugs has been published:

Degradation of the chemotherapy drug 5-fluorouracil on medical-grade silver surfaces

(Applied Surface Science 435, 1213-1219)


26th January 2018

Our latest work on silicon delta layers (together with Jill Miwa's group, and others) is published:

Simultaneous Conduction and Valence Band Quantization in Ultrashallow High-Density Doping Profiles in Semiconductors

Physical Review Letters 120 (4), 046403


11th January 2018

Our work with Thomas Jung's group on self assembled quantum dots is publishes:

Adsorbate-Induced Modification of the Confining Barriers in a Quantum Box Array

ACS nano 12 (1), 768-778


27th November 2017

Our latest work on surface interaction of chemotherapy drugs has been published in Applied Surface Science

"Degradation of the chemotherapy drug 5-fluorouracil on medical-grade silver surfaces"

and

Our work jointly with the group of PDC King (St. Andrews) has been published in Nature Materials:

"Ubiquitous formation of bulk Dirac cones and topological surface states from a single orbital manifold in transition-metal dichalcogenides"

Thanks to everyone who contributed to these articles!


11th October 2017

Our latest work "Accelerated ageing of molybdenum oxide" has been accepted for publication in the IOP journal, Material Research Express:

http://iopscience.iop.org/article/10.1088/2053-1591/aa9287


2nd October 2017

Frode Strand joins our group (and the QuSpin center) as Ph.D. student.


29th August 2017

Snorre's summer work has turned into an article! Using the MiBots at NanoLab to demonstrate some novel 4-point probe measurements...

"Probing dimensionality using a simplified 4-probe method" Journal of Physics: Condensed Matter, in press (2017).


23rd August 2017

Our work on UV damage to biomolecules (relevant to skin cancer) has been accepted by the ACS journal "Langmuir"

"Tautomerisation of thymine using ultraviolet light" Langmuir, 2017, 33 (38), pp 9666–9672 (2017)


18th July 2017

Our newest paper (and first paper for Marina as first author) is now available:

"Robust p-type doping of copper oxide using nitrogen implantation" Materials Research Express, Volume 4, Number 7 (2017)


4th April 2017

We welcome new PostDoc Rajesh Chellappan to the group to work on graphene based devices for radiation sensing ("GraSeRad", collaboration with Sintef)

QuSpin

15th March 2017

Today our Center of Excellence (Norwegian: Sentre for Fremragende Forskning, SFF) was funded!

Myself, Jacob Linder, Asle Sudbø, Rembert Duine and Mathias Kläui are the PIs and Arne Brataas is the director.

The Center is called the "Center for Low Dissipation Quantum Spintronics (QuSpin)" and you can read about it here:

http://www.forskningsradet.no/no/Nyheter/Ti_nye_sentre_for_fremragende_forskning/1254025392105 and

http://www.adressa.no/nyheter/trondheim/2017/03/15/To-nye-prestisjesentre-til-Trondheim-14444623.ece

January/February 2017:

We had a very busy and productive two months!

-- We welcome Dr. Alex Schenk to the group to be our new postdoc!

-- We have a new funded project from the research council, jointly with University of Oslo:

"Non-parabolic Effects Applied to Thermoelectric materials (NEAT)"

-- We have 3 new papers accepted:

1. "On-surface manipulation of atom substitution between cobalt phthalocyanine and the Cu(111) substrate" (RSC Advances)

2. "Strong electron-phonon coupling in the sigma band of graphene" (Phys. Rev. B)

3. "In Situ Patterning of Ultrasharp Dopant Profiles in Silicon" (ACS Nano)

-- We have a "new" lab!! It is based on a 1983 ESCALAB instrument originally called "Nasjonalt Laboratorium for Overflatestudier (NALOS)", which we are repairing and upgrading. It will be reincarnated as "Ny-NALOS", and offer XPS, LEED, AES, UPS and IPES.

Ny-NALOS

10th November 2016:

Our article "Thermal migration of alloying agents in aluminium" has now been accepted in MRX


10th September 2016:

Open day in the XPS lab! At least 42 students came in to visit on a Saturday...!

open day

9th September 2016:

Our lab gets a visit from the Kavli prize winners, Christoph Gerber, Calvin Quate and Gerd Binnig (who also received the Nobel Prize).

Kavli

(Photograph by Marina).

10th August 2016:

A young scientist (6 days old) visiting the lab! and learning XPS from Marina

New scientist?

2nd June 2016:

Federico wins the faculty prize for "best Ph.D. in natural sciences" -- congratulations Federico!!

Federico Mazzola "best Ph.D."

Vice Dean Tor Grande presenting Federico with the prize, (Photo: Per Henning/NTNU).


23rd May 2016:

Our latest paper (in collaboration with PDC King and others) is now published in Nature Comms.

"Spin–valley locking in the normal state of a transition-metal dichalcogenide superconductor"

http://www.nature.com/ncomms/2016/160523/ncomms11711/full/ncomms11711.html


22nd April 2016:

Congratulations Federico!

Federico successfully defended his Ph.D thesis today.

Thanks also to Kai Rossnagel and Chris Pakes for visiting and acting as opponents.


20th March 2016:

I plan to offer two student summer jobs:

Details are available here


16th March 2016:

Our latest collaborative paper with Prof. King and colleagues is now availble on ArXiv:

"Spin-valley locking in the normal state of a transition-metal dichalocogenide superconductor"

http://arxiv.org/abs/1603.05207


20th November 2015:

My editorial in NanoMedicine just came online:

"Avoiding degradation of chemotherapy drugs: is graphene the answer?"

Nanomedicine, Vol. 10, No. 22 , Pages 3307-3310 (doi: 10.2217/nnm.15.142)


11th November 2015:

We have two new articles in Applied Physics Letters:

1. "Controlling the growth of epitaxial graphene on metalized diamond (111) surface"

S. P. Cooil, et al., Appl. Phys. Lett. 107, 181603 (2015); http://dx.doi.org/10.1063/1.4935073

2. "Resonant photoemission spectroscopy for intermediate band materials"

F. Mazzola, et al., Appl. Phys. Lett. 107, 192104 (2015); http://dx.doi.org/10.1063/1.4935536


10th October 2015:

We have contributed to Teknisk Ukeblad's article on CQC2T's Quantum Computing breakthrough!

(TU's article) KVANTEDATAMASKINER: Så viktig er gjennombruddet i kvantedatamaskiner

(Original Nature article) A two-qubit logic gate in silicon


29th September 2015:

Our latest paper just appeared online. Thanks to Phil King and his group for the ongoing collaboration!

2nd September 2015:

We are currently offering a fully funded Ph.D. position:

http://www.jobbnorge.no/ledige-stillinger/stilling/117024/phd-position-in-experimental-physics

http://brightrecruits.com/job/7935/phd-position-in-experimental-physics


3rd August 2015:

Our latest work "Hierarchical spin-orbital polarisation of a giant Rashba system"

is available on ArXiv: http://arxiv.org/abs/1507.08588


8th June 2015:

We have some attention in the news!

"Supermaterialet grafén kan gi bedre kreftbehandling" Gemini

"Catheter studies raise acid alert" Nanotechweb

"Improving the delivery of chemotherapy with graphene" Institute of Physics

Photo: Per Henning

10th April 2015:

Good news comes all at once - over the Easter break, we have had 4 articles accepted:

1. "Graphene coatings for chemotherapy; Avoiding silver-mediated degradation" in the IOPs new journal 2D materials

2. "Tunable High Aspect Ratio Polymer Nanostructures for Cell Interfaces" in RSC's journal Nanoscale

3. "One-dimensional spin texture of Bi(441): Quantum spin Hall properties" in APS's journal Physical Review B.

4. "Low-temperature Growth of Bismuth Thin Films with (111) Facet on Highly Oriented Pyrolytic Graphite" in ACS's journal Applied Materials & Interfaces.

-- I'll post links to the articles once they are available online. As always, these articles involve multiple collaborations, so thanks and congratulations to those involved!


24th September 2014

Our article on the confinement of delta-layers has just been accepted in ACS Nano:

http://pubs.acs.org/doi/abs/10.1021/nn5045239


22nd August 2014

A PostDoc position is now available in my group:

http://www.jobbnorge.no/ledige-stillinger/stilling/104980/post-doctoral-position-in-experimental-nano-magnetism


21st August 2014

Our project on WSe2, jointly with Prof. Phil King, has been accepted by Nature Physics.

A preview is available on ArXiv: http://arxiv.org/abs/1408.6778

(more details and a link will follow soon).


28th July 2014

Teknisk Ukeblad have written an article about our research work:

KVANTEDATAMASKINER: NTNU-forskere vil bruke silisium til kvantedatabehandling


30th June 2014

We were interviewed by 'Teknisk Ukeblad' about the D-Wave quantum computer:

D-WAVE: Er det så vanskelig å bevise at kvantedata fungerer?


2nd May 2014

Our APL is now online! thanks to everyone involved.

http://scitation.aip.org/content/aip/journal/apl/104/17/10.1063/1.4874651


29th April 2014

Our manuscript "Disentangling phonon and impurity interactions in delta-doped Si(001)" has just been accepted for publication in Applied Physics Letters!... I'll post a link as soon as it is available online.


5th March 2014

Our Nano Letters is now online!

http://pubs.acs.org/doi/abs/10.1021/nl404738j

[figure: copyright held by American Chemical Society (2014)]


26th February 2014

Our manuscript "Valley splitting in a silicon quantum device platform" has been accepted by Nano Letters!

"just accepted" manuscript available here

Thanks to the co-authors for their hard work.


12th February 2014

Elise Østli joins our group as M.Sc. Student (co-supervised by Prof. Aune).

Her project is on XPS analysis of chemotherapy drugs.


15th January 2014

Cecilie Granerød joins our group as M.Sc. Student!

project title: "Measuring spin-orbit interactions in novel 2D materials"


30th November 2013

Federico's PRL is now published - http://prl.aps.org/abstract/PRL/v111/i21/e216806


5th November 2013

Our manuscript "Electron-phonon coupling-induced kinks in the sigma band of graphene"

is now accepted in PRL!! - congratulations Federico :-)

(an early draft is available on ArXiv; http://arxiv.org/abs/1305.6210)


4th June 2013

Our draft "Electron-phonon coupling-induced kinks in the sigma band of graphene" has been uploaded to arXiv:

http://arxiv.org/abs/1305.6210


31st May 2013

Our article "Exploring the limits of n-type ultra-shallow junction formation", is now available online.

http://pubs.acs.org/doi/abs/10.1021/nn4016407


22nd May 2013

Our article "Exploring the limits of n-type ultra-shallow junction formation", submitted to ACS Nano, has just been accepted.

- well done Craig!


13th May 2013

Our work got noticed by Nature Nanotechnology; see their Research Highlight here:

http://www.nature.com/nnano/journal/v8/n5/full/nnano.2013.86.html#/two-dimensional-electron-gases-digging-up-band-structures

...and NTNU's announcement of it here:

http://www.ntnu.no/fysikk


29th March 2013

Our article "Excitation of Coherent Phonons in the One-Dimensional Bi(114) Surface" is now available

Phys. Rev. Lett. 110, 136806 (2013), http://prl.aps.org/abstract/PRL/v110/i13/e136806


27th March 2013

Our article "Direct Measurement of the Band Structure of a Buried Two-Dimensional Electron Gas" is now available

Phys. Rev. Lett. 110, 136801 (2013), http://prl.aps.org/abstract/PRL/v110/i13/e136801


20th March 2013

Another article has been accepted in PRL - the second this year!!

"Excitation of coherent phonons in the one-dimensional Bi(114) surface"

Until it appears in a printed version, you can access it on arXiv: http://arxiv.org/abs/1303.2718


5th March 2013

Our article "Surface-sensitive conductivity measurement using a micro multi-point probe approach" is now available online:

Rev. Sci. Instrum. 84, 033901 (2013)

http://rsi.aip.org/resource/1/rsinak/v84/i3/p033901_s1


19th February 2013

Our article "Hole doping of graphene supported on Ir (111) by AlBr3" is now available online:

Applied Physics Letters 102, 061601 (2013)

http://apl.aip.org/resource/1/applab/v102/i6/p061601_s1

29th January 2013

An article based on the draft we posted on ArXiv has just been accepted by PRL!

"Direct band structure measurement of a buried two-dimensional electron gas"

arxiv.org/abs/1210.7113


December 2012:

The last new paper of 2012...

"Microscopic four-point-probe resistivity measurements of shallow, high density doping layers in silicon"

Applied Physics Letters 101 (26), 262105-262105-4

http://apl.aip.org/resource/1/applab/v101/i26/p262105_s1


August 2012:

Another of our papers available online!!

"Extracting the near surface stoichiometry of BiFe0.5Mn0.5O3 thin films; a finite element maximum entropy approach"

http://www.sciencedirect.com/science/article/pii/S0039602812002725?v=s5


July 2012:

Our paper "Robust Surface Doping of Bi2Se3 by Rb Intercalation" has been accepted by ACS Nano!

http://pubs.acs.org/doi/abs/10.1021/nn3021822

And, our paper "Iron-mediated growth of epitaxial graphene on SiC and diamond" is published in Carbon!

http://www.sciencedirect.com/science/article/pii/S0008622312005696


June 2012: I have accepted a position at the Norwegian University of Science and Technology (NTNU) as førsteamanuensis (transl. Associate Professor). I plan to start in October.


April 2012: Our article on LSMO thin films is now published!

http://www.sciencedirect.com/science/article/pii/S0039602812001501