PhD student position in Diamond Semiconductor Physics

Uppsala University is a comprehensive research-intensive university with a strong international standing. Our mission is to pursue top-quality research and education and to interact constructively with society. Our most important assets are all the individuals whose curiosity and dedication make Uppsala University one of Sweden’s most exciting workplaces. Uppsala University has 46.000 students, 7.300 employees and a turnover of SEK 7.3 billion.

Currently, we have opened a PhD-student vacancy in the Diamond Electronic Group at the division of Electricity, Dept. of Electrical Engineering, Uppsala University.

The position is within the field of diamond semiconductor devices, solid state physics and electronic and spintronic properties of CVD diamond. Diamond possess extreme material properties and in particular many extreme properties as a semiconductor. It is now possible to manufacture films of high purity single crystalline diamond, which opens up the possibility to utilize these properties in future electronic and spintronic devices.

About the division: The Division of Electricity at the Department of Engineering Sciences, Uppsala University conducts research on electromagnetics, power electronics and renewable energy. The diamond group has a proven track record working on cutting-edge semiconductor technology with a number of publications in high impact journals.

Project description: The attractive material properties of diamond such as high band gap, high carrier mobilities, high thermal conductivity, high breakdown field strength, radiation hardness, etc., make it a very interesting semiconductor material. Recently, diamond has received great attention for applications in spintronics and valleytronics. This is because of the unique quantum mechanical properties of diamond, as well as the presence of defects, e.g. the N-V center, with extremely long spin coherence time.

Diamond is considered to be a unique material for future high power, high frequency, high temperature devices like high-power Schottky diodes, MESFETs etc for applications in power electronics, fast switching transistors and for spintronics. Designs and fabrication techniques different from conventional methods have to be employed to realize electronic devices based on thin film single crystalline chemical vapour deposited (SC-CVD) diamond. Diamond also has a huge potential to be used as detectors in high energy physics, detectors for UV and far UV radiation, radiation sensors for radiotherapy, neutron detectors etc.

Duties: The proposed work consists of:

• Fabrication and characterization of spin- and valleytronic test devices in diamond and growth of graphene films on diamond substrates using state-of-the-art optical and electrical characterization techniques.
• Modelling and computer simulations of devices.
• Material characterization of CVD diamond by various characterization techniques and improving methods for studying transport processes in diamond.

PhD positions in Sweden are usually of 4-5 years duration. The student will have the opportunity to attend courses from the graduate curriculum within the fields of Solid state physics, Semiconductor device technology, Material physics, etc. PhDs are also expected to do some teaching, in Swedish or English, approximately 20% of full time. www.teknik.uu.se

Requirements: We are looking for a strong candidate with a Master degree in physics, semiconductor physics or material physics with some experience in one or more of:

• Solid state physics
• Semiconductor device physics
• Semiconductor material characterisation
• Micro/Nano structures & technology

We also require high level of proficiency in English.

Rules governing PhD students are set out in the Higher Education Ordinance chapter 5, §§ 1-7 and in Uppsala University's rules and guidelines http://regler.uu.se/?languageId=1.

Salary: According to local agreement for PhD students.

Starting date: As otherwise agreed.

Type of employment: Temporary position according to the Higher Education Ordinance chapter 5 § 7.

Scope of employment: 100 %

For further information about the position please contact: Saman Majdi, saman.majdi@angstrom.uu.se och Jan Isberg, jan.isberg@angstrom.uu.se

Please submit your application by 17th August 2020, UFV-PA 2020/2687.

Are you considering moving to Sweden to work at Uppsala University? If so, you will find a lot of information about working and living in Sweden at www.uu.se/joinus. You are also welcome to contact International Faculty and Staff Services at ifss@uadm.uu.se.

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