Associate Professor:

Kristine Niss


Do simple liquids exist?

"Isochronal jumps in the phase diagram studied by neutron scattering"

Experimental studies of the dynamics in molecular liquids from pico- to kilosecond as a function of temperature and pressure.

A project funded by DFF Sapere Aude : Starting Grant

Postdoc in Psysics

Roskilde University (RUC, Roskilde, Denmark) invites applications for a Postdoctoral position in in- and quasi-elastic neutron scattering on glass-forming liquids.

Job description

You will be part of a new research project led by Associate Professor Kristine Niss. This project aims at testing new theoretical predictions by means of in- and quasi-elastic neutron scattering. We will perform a range of experiments in which fast (pico-nano second) and slow (mili-kilo second) dynanimics are studied as function of both pressure and temperature in glass-forming liquids. This is by no means standard in the field and the development of a new measuring cell for combined neutron and dielectric high-pressure measurement is a main part of the research project. This is done in collaboration with a group of international collaborators. Therefore you should be prepared for a fair amount of traveling (Pisa, Katowiche, Grenoble and Paris). The primary tools involve the use of in- and quasi-elastic neutron scattering methods, available at international large-scale facilities, and dielectric spectroscopy, available at Roskilde University.


Candidates must have a PhD in experimental Physics, strong collaboration and communication (oral and written) skills, excellent analytical capability, and a proven publication record with publications in major international journals. Candidates must have experience with some of the following; in- or quasi-elastic neutron scattering, experimental studies on liquids and amorphous materials, and/or high pressure dielectric spectroscopy. Experience with developing or optimizing experimental methods/equipment is considered to be a merit.

Information about the research group and Roskilde University

You will be part of the "Glass and Time" research group. Research at "Glass and Time" focuses on understanding the universal physical properties of highly viscous liquids approaching the glass transition. This problem is attacked experimentally as well as by extensive computer simulations in combination with theory. In fact close collaboration and daily interactions between theorists and experimentalists is characteristic feature of the "Glass and Time" group. "Glass and Time" hosts several PhD students, postdocs, and experienced scientists. The most important task of Roskilde University is to contribute to experimental, innovative forms of learning and knowledge creation. The University is situated approximately 30 km from Copenhagen and is well connected with Copenhagen by trains that run four times an hour.


You will be employed for a period of two years starting from September 1st 2014 or as soon as possible thereafter. Employment as Postdoc requires documented scientific qualifications as PhD or equivalent scientific qualifications. Employment will take place in accordance with the agreement between the Ministry of Finance and the Central Organization of the Academics. You will be associated to the "Glass and Time" research group at the Department and will have the opportunity to build networks with colleagues and collaborators in the field.
For further information regarding the position you are welcome to contact Head of Department Stine Korreman, e-mail:; or Associate Professor Kristine Niss e-mail: You can read more about the Department at, about Glass and Time at and about the new research project at


We only accept applications through our electronic recruitment system. To apply for the position you must go to the job advertisement on our homepage: Click on the button "Apply for vacancy here" which appears immediately below the job advertisement. Then you fill the application form and attach the documents listed below. Finish by clicking "Submit".
Please send your application, CV, diplomas, a numbered list of publications with an indication of which publications are particularly emphasized. You can attach no more than five publications to the application. (The review committee can request further material mentioned in the application.) Furthermore you must enclose an account of your experiences with research, teaching, presentation, and administration. Experience must as far as possible be documented. Additionally you should enclose a short description of research- and innovation work, which you expect to carry out in connection with your employment. We must receive your application on or before August 1, 2014.
Application-related material received after the deadline has expired will not be taken into consideration.
Roskilde University welcomes applications from candidates of any social and ethnic backgrounds irrespective of gender, age, religion or any other irrelevant criteria.