Fellowship position for spin-caloritronics in magnetic tunnel junction nanodevices
Spin-caloritronics  is a new emerging field of spintronics where thermal gradients developed in nanostructured devices can play an active role to control and manipulate spin-based effects like thermally driven spin currents [2,3] and thermally driven magnetization reversal . Such effects are very promising as they would allow to improve energy efficiency in future ICT (information and communication technology) devices. Moreover, the large current densities involved in spin transfer torque (STT) effects imposes a better knowledge of the interplay of heat, charge and spin currents at such conditions.
Recently, large tunneling magneto Seebeck ratios were observed in magnetic tunnel junction (MTJ) devices , showing the potentiality of such devices for on-chip energy harvesting applications.
The Spintronics group of the International Iberian Nanotechnology Laboratory (INL)* at Braga (Portugal) is seeking for a highly motivated researcher to: 1.) Optimize MTJ stack configuration for future thermoelectric applications and 2.) Study thermal gradient effects on MTJ magnetization dynamics for novel spin-caloritronic functionalities. For this the candidate will grow the MTJ stacks, setup and perform dc magneto thermal transport measurements and carry out heat current induced magnetic excitation measurements in time-resolved and frequency domain.
This work will be part of the European JRP SpinCal project in collaboration with the German Metrology Institute (Physikalisch-Technischen Bundesanstalt, PTB) at Braunschweig, Germany.
The candidate should have a PhD degree in materials science, engineering or physics in a topic closely related to spintronics, spin torque effects or thermoelectric materials. Experience in instrumentation development and computer scientist skills - LabVIEW, MATLAB, C++, … - is a must. Previous experience in finite element analysis simulation – COMSOL, … - is also required. Excellent communication skills are essential. Clean-room experience will be a plus.
Selected candidate will be offered a 2 year fellowship position.
Applications, including a CV and a letter of intend, should be submitted, no later than 31-12-2013 (23:00 Lisbon time)
Further enquires for this position can be directed to Santiago Serrano-Guisan: email@example.com
*INL is an Intergovernmental Organization created to foster interdisciplinary research in Nanotechnology and Nanoscience. Aiming to become a vital part of Europe’s scientific area, INL provides a high-tech research environment addressing major challenges in nanoelectronics, nanomedicine, nanotechnology applied to environmental & food control, nanomachines and molecular manipulation at nanoscale (For further information about INL please visit our website: http://inl.int)
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 M. Hatami et al., Phys. Rev. B 79, 174426 (2009) ; X. Jia et al., Phys, Rev. Lett. 107, 176603 (2011)
 N. Liebing, S. Serrano-Guisan, K. Rott, G. Reiss, J. Langer, B. Ocker and H.W. Schumacher, Phys. Rerv. Lett. 107, 177201 (2011); Walter et al., Nat. Mater. 10, 742 (2011)
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