Network meeting of EU projects Fantomas and Ultramagnetron

3 Oct 2010, 16:00 → 8 Oct 2010, 20:30 Europe/Zurich

Seminar Hotel Stoos

 

Welcome to the joint meetings of

FANTOMAS and ULTRAMAGNETRON

This meeting consists of

• International workshop on Laser-induced magnetization dynamics in nanostructures - 6./7. October (open to people outside the networks)
• Fantomas: Projectmanagement class for PhD students - 4./5. October (partly open)
• Fantomas: Midterm review - 8. October (Network members only)
• Ultramagnetron: Midterm review - 5. October (Network members only)

Fee: 300.- CHF per night and person

Flat fee including single room, full board, cable-car ticket and workshop-, project management-, and/or meeting-registration. After registration you will receive an invoice which we ask you to pay within two weeks and latest by the registration deadline (6. September) or calculate the fee and pay directly. Your registration is only valid after we received the payment.

Cancellation policy

• Cancellations received up to 2 weeks prior the workshop: Fees that have been paid will be refunded deducted by 20 CHF to cover our expenditures.
• Cancellations received 2 weeks and less prior the workshop: accommodation costs will not be refunded.
• Substitutions are eligible without additional costs.

Deadlines:

• workshop abstracts for oral/poster presentation: 13. August 2010
• registration: 6. September 2010

Abstracts:

• Send abstract to ultrafanto@psi.ch indicating whether you prefer an oral or poster presentation.

Questions etc.?

send email to ultrafanto@psi.ch

Local organisation

Frithjof Nolting and Charlotte Heer (PSI)

Telephon from 3 - 8 October

We can be reached by dialing +41 (0)79 355 03 29 (active during this week only)

Abstract template Abstract template

Announcement workshop Announcement Workshop

How to get there cablecar_schedule.pdf Stoos_and_how_to_get_there.pdf

Program Overview Meeting Overview_Network_Meeting_2010.pdf

Village Map Village map

Workshop Abstracts Abstracts.pdf

Workshop Program Workshop_program.pdf

Sunday, 3 October

19:00 → 20:30 Dinner

Monday, 4 October

08:45 → 17:30 Project Management Class

15:00 → 18:00 Ultramagnetron: Pre-meeting midterm review

19:00 → 20:30 Dinner

Tuesday, 5 October

08:30 → 18:00 Ultramagnetron: midterm review

08:45 → 17:30 Project Management Class

19:00 → 20:30 Dinner

Wednesday, 6 October

09:00 → 10:30 Magnetic Nanostructures I

09:00 → 18:30 Workshop on Laser-induced magnetization dynamics in nanostructures

10:30 → 11:00 coffee

11:00 → 12:15 Magneto-optics and Opto-magnetism I

12:30 → 13:30 Lunch

13:30 → 15:00 Discussions

15:00 → 16:15 Magnetization Dynamics I

16:15 → 16:30 coffee

16:30 → 18:30 Poster Session

19:00 → 22:00 workshop dinner

Thursday, 7 October

09:00 → 10:30 Magnetization Dynamics II

09:00 → 16:30 Workshop on Laser-induced magnetization dynamics in nanostructures

10:30 → 11:00 coffee

11:00 → 12:15 Magnetic Nanostructures II

11:00 Enhancing Magnetic Hardness in Self-Assembled Island Superlattices, Harald Brune (EPFL)

We show that the blocking temperature of Co double layer islands arranged in a self-assembled superlattice on Au(11,12,12) with a density of 15 Tera/in2 can significantly be enhanced by interfacing them with small amounts of Fe. The magnetic ground state of each island is a single domain ferromagnet. Magnetic torque measurements on pure Co double layer islands containing 600 atoms reveal that also the transition state during thermal magnetization reversal is monodomain, namely, the reversal takes place by coherent rotation of all magnetic moments [1]. As a consequence, the blocking temperatures are proportional to the magnetic anisotropy energies. Former measurements of such islands on Au(788), where the density is 24 Tera/in2, have revealed uniaxial out of plane magnetization and the absence of dipolar interactions [2]. A good benchmark for hard magnetic nanostructures is the ratio of the number of constituent atoms to the blocking temperatures that has to be minimized. For this number we achieve 7.1 for pure Co islands and it goes down to 4.7 for Co core – Fe shell islands [3, 4]. Since Fe grows in single layer not much Fe can be added before coalescence sets in. However, decoration of the islands with Pd from the top gives rise to a further enhancement of the magnetic hardness [4]. References: [1] A. Lehnert, P. Buluschek, N. Weiss, J. Giesecke, T. Treier, S. Rusponi and H. Brune, Rev. Sci. Instrum. 80, 023902 (2009). [2] N. Weiss, T. Cren, M. Epple, S. Rusponi, G. Baudot, S. Rohart, A. Tejeda, V. Repain, S. Rousset, P. Ohresser, F. Scheurer, P. Bencok and H. Brune, Phys. Rev. Lett. 95, 157204 (2005). [3] C. Carbone, S. Gardonio, P. Moras, S. Lounis, M. Heide, G. Bihlmayer, N. Atodiresei, P. H. Dederichs, S. Blügel, S. Vlaic, A. Lehnert, S. Ouazi, S. Rusponi, H. Brune, J. Honolka, A. Enders, K. Kern, S. Stepanow, C. Krull, T. Balashov, A. Mugarza and P. Gambardella, Adv. Funct. Mater., submitted (2010). [4] S. Vlaic, S. Tallegas, A. Lehnert, S. Ouazi, S. Rusponi and H. Brune, in preparation.

12:30 → 13:30 Lunch

13:30 → 15:00 Discussions

15:00 → 16:15 Magneto-optics and Opto-magnetism II

16:15 → 16:30 coffee

16:30 → 18:00 Fantomas: Pre-review meeting

19:00 → 20:30 Dinner

Friday, 8 October

08:30 → 13:00 Fantomas: midterm review

13:00 → 14:00 Lunch