VŠB - Technical University of Ostrava is searching for suitable candidates for:

Junior Researcher positions for work stays abroad

VŠB - Technical University of Ostrava is an institution of higher education offering education in technical and economic sciences based on free and internationally oriented research. It is an integral part of the higher education structure in the Czech Republic providing for the highest level of education in the area of its specialization. VŠB-TUO has the right of conferring academic and scientific degrees, as well as doctoral honorary degrees. The scientific and teaching staff collaborates with research and academic institutions and specialists at both national and international levels.

VŠB-TUO ranks among the top technical universities in the Czech Republic. Its research & technology development potential represents an important component of the innovative process in the region and throughout the entire Czech Republic. The latest results of its R&D activities confirm the strength of the human and research potential that the University has at its disposal.

The open call for the research positions is issued on behalf of IT4Innovations National Supercomputing Center based at VŠB-TUO. This centre is the leading operator of supercomputing technologies and major provider of computational resources in the Czech Republic as well as a research and development (R&D) centre focused on the fields of study which find the use of this computing infrastructure for computationally demanding modelling, simulation, and data analysis. All R&D activities of the centre are organized within research laboratories (for more details about IT4Innovations, see http://www.it4i.cz/).

We are currently offering 1 work stay for junior researcher in the IT4Innovations research-related areas, supported by the EU Operational Program Research, Development and Education and the Czech state budget.

Job position Participation in the mobility Nr.3 - Work-stays of Junior Researchers Abroad
Location Greifswald, Germany
Expected date of the mobility 1.1.2022 – 30.6.2022
Workload 100%
Field of research Magneto-optical detection of THz current pulses generated by strip line integrated Spintronic THz emitters.
Bližší popis výzkumu In the current state of technology, radiofrequency and microwave sources are widely available and very well leveraged in the commercial electronics. Also, the sources of near-infrared radiation are commonly used, e.g., VCSEL (Vertical cavity surface emitting laser) are heavily used for optical communication over optical cables.
Between microwave and near-infrared spectral regions lies the terahertz (THz) band. This spectral region promises significantly higher data rates transmission compared to frequencies used today in telecommunication networks, being hundreds of MHz and low tens of GHz. Furthermore, technology of THz spectroscopy, for example, can offer possibility to investigate many new materials and molecules that have absorption lines in THz frequency band. Yet, the technology for generation, detection and manipulation of THz radiation is not fully developed and understand, so there is ongoing research of sources, detectors, and polarization optics for THz radiation.
One such THz source, discovered relatively recently, is so-called Spintronic Terahertz Emitter (STE). Its operation is based on femtosecond optical pump in ferromagnetic (FM) material which provides generation of spin current. In the neighboring heavy metal layer this spin-current is transformed to picosecond (ps) electrical charge pulse by inverse spin hall effect. The duration of the pulse is what define that the frequency of radiated electromagnetic wave is in the THz band.
The aim of this research activity is to design and prepare those STE embedded in the waveguide structure, which allow for characterization of the generated ps electrical pulses. Characterization of such short-duration electrical pulse through electronic equipment such as oscilloscope is rather limited. Thus, we intend to also use magneto-optic detection from ferromagnetic stack connected to the waveguide, or possibly combine both techniques.
Basic information about the researcher´s work (plan of research and development activities, job description and expected outputs) The first step of the research is to learn how to prepare STE using deposition and lithography together with structural characterization.
Second step is to be able to detect and characterize generated ps electrical pulses by electrical or magneto-optical means. In this step expertise with pump-probe magneto-optic measurements and setup will be gained, and some development or enhancement of magneto-optical setup is expected as well.
The third step would be to try optimizing this STE structure, thus optimize generated ps pulses. Welcomed result, worth of publishing in impacted journals, would be also demonstration of on-chip switching of FM by those ultrashort electrical pulses.
Length of the mobility 6 months
Requirements for the candidate
  • The candidate must be a Junior Researcher1. If it is a Ph.D. student, he/she must have the status of a Ph.D. student (in an institution based in the Czech Republic)
  • During the mobility implementation, the candidate must be an employee of the Beneficiary, working for at least 0.5 of the working time
  • The candidate must have a recommendation of the tutor (if it is a Ph.D student)
  • Good knowledge of English language,
  • Basic knowledge of German language is welcomed bonus.
  • The candidate must have deep expertise with magneto-optical Kerr effect phenomena, with magnetism and have a good knowledge of various spintronic phenomena.
Conditions of the mobility
  • The researcher must work for 6 months as an employee of VŠB - TU Ostrava without undue delay after returning from mobility. The return phase also includes dissemination of mobility results to employees/students of the VŠB-TU (at least one seminar, workshop, etc.)
  • The researcher must participate in a conference / seminar / workshop etc., on average at least once every 6 months of mobility started.
  • Any potential research output conceived during mobility performance must be published in an Open Access form.
  • The researcher will have a mentor in host institution who should tend to the researcher 4 hours a week in average.
Selection criteria
  • The number and quality of publication outputs
  • The way and scope of involvement in the research projects
  • Language skills of the candidate for the mobility
  • Contribution of candidate´s mobility to the institution of the applicant (VSB)
  • Expected results of the mobility and their future use for the institution of the applicant (VSB)
  • Potential of the mobility to increase the quality of research at the institution of the applicant (VSB)
Documents required from the candidate
  • Professional CV
  • Diploma (or recognition, in the event of a Ph.D. Student, confirmation of studies.)
  • Referral of the tutor in the event of a Ph.D. student
  • A certificate proving level of knowledge of English language
  • List of scientific or professional publication and other documents certifying scientific qualification
  • Research plan with respect to the required field of research
Salary conditions
  • The salary conditions are set in accordance with the rules of the Operational Programme Research, Development and Education
  • Approx. 78,000.00 CZK / month / gross wage
Contact person Ing. Lenka Dulaiová, lenka.dulaiova@vsb.cz, tel.: 597 329 532 (IT4Innovations)

1 Junior Researcher
A Junior Researcher is a researcher, being a Ph.D. student or meeting the post-doc definition.
The said period may be extended for the maternity and paternity leave period, long-term sickness (more than 90 days), care for a family member (more than 90 days), pre-attestation preparation and military training.

The process of mobility is subject to the Rules for Applicants and Beneficiaries, Specific Section, Call “International mobility of research, technical and administrative staff of research organizations” (Operational Programme Research, Development and Education No. 02_18_053). The researcher is required to submit Monthly report of activities for each performed activity unit and to fulfil the Attendance (during the mobility), and also after the end of the return phase he is required to draw up the Report in Return Phase.

The researchers must participate in a conference / seminar / workshop etc., on average at least once every 6 months of mobility started. It may be an event organized by other than host institution or if the event is organized by the host institution, it must be an international event.

The researchers must have a mentor in the host institution who should tend to the researcher 4 hours a week on average.

Interested candidates are requested to send the above mentioned documents in the Czech or English language to lenka.dulaiova@vsb.cz by no later than 17th October, 2021.