Postdoc position for Sensitive Magnetotransport Measurements - DTU Energy

Do you want to contribute to a future where we can use novel magnetometers to understand diseases in the human brain by measuring its magnetic fields? We are looking for a dedicated postdoc to conduct sensitive electrical measurements and develop new protocol for magnetometers.
Do you want to contribute to a future where we can use novel magnetometers to understand diseases in the human brain by measuring the tiny magnetic fields created by neurons in the brain? In a joint project between DTU and KU we are targeting exactly this, and we are looking for a dedicated postdoc to conduct sensitive electrical measurements and develop new measurement schemes for extraordinary magnetoresistance & Hall magnetometers.

It is possible to get a deeper understanding of how the brain functions in a non-invasive way through sensing the tiny magnetic fields produced by neuronal currents. Today, this need is primarily met by quantum sensors that must be operated at cryogenic temperatures, which greatly increases the complexity and cost of making such measurements. Therefore, research on alternative methods to detect tiny magnetic fields is a top priority.

In a large Novo Nordisk Foundation-sponsored project called Biomag, we aim to use 2D materials and III/V semiconductors to create novel magnetic sensors with picotesla sensitivity and use these sensors to map neuron activity at room temperature. As part of this large project, we are looking for a postdoc to develop sensitive measurement schemes for extraordinary magnetoresistance & Hall magnetometers.

Responsibilities and qualifications
You will work in a highly collaborative team composed of experimental and theoretical colleagues. Here, theoretical colleagues will predict the optimal sensor geometry and material properties for the given measurement scheme using novel topology optimization tools. The numerical designs will be experimentally realized using high-mobility graphene and III/V semiconductors in collaboration with device fabrication experts. You will then test the performance of the magnetometers and measurement protocols and feed your recommendations back to your colleagues. Lastly, you will also work together with neuroscience colleagues to detect live neurons.

The main tasks are:

• Low-noise electrical characterization of Hall and extraordinary magnetoresistive magnetometers.
• Optimization of electrical characterization setups, hardware and software.
• Design of novel electrical measurement sensing schemes to lower the detection limit of single extraordinary magnetoresistive magnetometers and sensor arrays.
• Magnetometry measurements on neurons.

Required qualifications:
Qualified applicants must have:

• Extensive experience with low-noise electrical measurements and design of new sensing schemes, incl. extensive experience in noise-optimization of electrical setups, optimizing measurement protocols, and coding measurement software.
• Experience with micro- or nanoscale devices, ideally on 2D materials or III/V semiconductors.
• A keen interest in sensing ultra-weak magnetic fields to push the boundaries of all-electronic magnetic field sensors. Prior experience with low-noise magnetic sensors (Hall, magnetoresistive or NV magnetometers) is an advantage, but not a must.

General qualifications:

• A strong drive to move the frontiers of science.
• The ability to work independently, to plan and carry out complicated tasks, and to be a part of a large, dynamic group.
• Independent problem-solving skills.
• Excellent communication and language skills in English, both written and spoken.

As a formal qualification, you must hold a PhD degree (or equivalent).

We offer
DTU is a leading technical university globally recognized for the excellence of its research, education, innovation, and scientific advice. We offer a rewarding and challenging job in an international environment. We strive for academic excellence in an environment characterized by collegial respect and academic freedom tempered by responsibility.

Salary and terms of employment
The appointment will be based on the collective agreement with the Danish Confederation of Professional Associations. The allowance will be agreed upon with the relevant union.

The period of employment is 2 years.

You can read more about career paths at DTU here.
Further information
Further information may be obtained from Dennis Valbjørn Christensen ([email protected], +45 20961946), Nini Pryds ([email protected]), or Thomas Sand Jespersen ([email protected]).

You can read more about DTU Energy at www.energy.dtu.dk/

If you are applying from abroad, you may find useful information on working in Denmark and at DTU at DTU – Moving to Denmark.

Application procedure
Your complete online application must be submitted no later than 31 July 2024 (23:59 Danish time).

Applications must be submitted as one PDF file containing all materials to be given consideration. To apply, please open the link "Apply now", fill out the online application form, and attach all your materials in English in one PDF file. The file must include:

• Application (cover letter). This should be written as a short (
• CV
• Academic Diplomas (MSc/PhD – in English)
• List of publications
• Contact information of two senior researchers whom you have worked closely with.

Applications received after the deadline will not be considered.

All interested candidates irrespective of age, gender, disability, race, religion, or ethnic background are encouraged to apply.

DTU Energy focuses on research and development of functional materials, components, and systems for sustainable energy technologies. The technologies include fuel cells, electrolysis, power-to-x, batteries, and carbon capture. The research is based on strong competences on electrochemistry, atomic scale and multi-physics modelling, autonomous materials discovery, materials processing, and structural analyses. We also focus on educating engineering students at all levels, ranging from BSc, MSc, PhD to lifelong learning students. We have about 270 dedicated employees. Read more about us at www.energy.dtu.dk.

DTU Physics conducts cross-disciplinary research where micro- and nanotechnology is applied to a wide range of scientific disciplines (electronics, mechanics, chemistry, optics, fluidics, medical and biotechnology) as well as applications. The Nanoscale Materials and Devices section (NANOMADE) at DTU Physics is focused on basic and applied research, and with strong international collaborations. The 2D Electronic Materials group led by Peter Bøggild is involved in the EU Graphene Flagship and Centre of Excellence Center for Nanostructured Graphene.

Technology for people
DTU develops technology for people. With our international elite research and study programmes, we are helping to create a better world and to solve the global challenges formulated in the UN’s 17 Sustainable Development Goals. Hans Christian Ørsted founded DTU in 1829 with a clear mission to develop and create value using science and engineering to benefit society. That mission lives on today. DTU has 13,500 students and 6,000 employees. We work in an international atmosphere and have an inclusive, evolving, and informal working environment. DTU has campuses in all parts of Denmark and in Greenland, and we collaborate with the best universities around the world.

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