PhD position in nonlinear laser spectroscopy on novel types of ferroic order

100%, Zurich, fixed-term

In the Laboratory for Functional Ferroic Materials we investigate materials where strong coupling between electrons leads to novel types of ordering processes of their spins and charges. We study the fundamental physics of these materials with a focus on experimental basic research yet including the perspectives on theoretical background and technological relevance. Our experimental core technologies are nonlinear and ultrafast optical spectroscopy with pulsed lasers. In addition, we apply scanning probe microscopy, standard magnetic and dielectric characterization methods, Monte-Carlo simulation, and pulsed-laser-deposition of oxide thin films.

Project background

The PhD project unites our leading international expertise in nonlinear laser spectroscopy and (multi-) ferroic materials. Currently the possible existence and physical properties of new forms of ordered states in matter are intensively discussed. Examples are advanced multiferroicity, altermagnetism, hidden order, chiral states, or topological phases. Systematic exploration of such states is an emerging topic and therefore offers the opportunity to contribute to the development of a new research field.

Job description

The goal of the doctoral project is to explore such novel manifestations of ferroic order with the use of pulsed-laser systems. The distribution and manipulation of the ordered regions - domains - exhibited by such novel ferroics is of particular interest because domains reveal the coupling processes underlying the ordered state and are also key to device functionality.

There are not many labs in the world with the knowledge to do this kind of work, and so studies of domains in new types of ferroic materials are scarce despite their significance for basic and applied research. To the curious person, the PhD project thus offers plenty of room for exciting physics and groundbreaking discoveries, and our lab has exactly the expertise to acquire these.

Candidates will use our workplaces for nonlinear laser spectroscopy. They will design and set up their own experiment and are never afraid to tear it down and try a new approach, should this become necessary. Candidates will also learn to work with cryogenic environments. Despite the focus on laser-based experiments, the involvement of other experimental techniques and in-depth discussion with theoretical groups are likely.

Profile

• You have a masters degree in Physics or Materials Physics
• You have basic education in condensed-matter physics
• You like to work on complex problems with an urge to understand phenomena at their roots
• You are highly motivated, self-organized, creative, and used to thinking sideways
• You are a team player who likes to work in an interdisciplinary environment at the interface between optics and condensed-matter physics
• You are communicative with the ability to explain your project to non-specialists in simple words
• You may have experience in the work with high-power laser systems; this is welcome but not required

Workplace

We offer

• Outstanding lab facilities with several femtosecond and nanosecond laser systems
• An international environment of mutually supportive people
• A flat hierarchy: everyone’s opinion weighs the same in scientific discussions
• Excellent working conditions and an internationally competitive salary
• Support for attending international conferences and workshops
• An extensive network of scientific collaborators
• Access to the excellent technological infrastructure of ETH Zurich
• Administrative support

We value diversity

Curious? So are we.

We look forward to receiving your online application. Please submit the following.

• A cover letter stating your explicit motivation and expectations regarding this position
• A CV including publications and presentations, if any
• Diplomas and a detailed list of bachelor and master courses

Please note that we exclusively accept applications submitted through our online application portal.

For further information please visit our website . For the scientific background, you may also refer to our book ’Nonlinear Optics on Ferroic Materials’ (M. Fiebig, Wiley 2023).

Questions regarding the position should be directed by email to Dr. Thomas Lottermoser (thomas.lottermoser@ mat.ethz.ch) or Prof. Manfred Fiebig (manfred.fiebig@ mat.ethz.ch). Selection will start immediately, so early submissions are strongly encouraged.

ETH Zurich is one of the world’s leading universities specialising in science and technology. We are renowned for our excellent education, cutting-edge fundamental research and direct transfer of new knowledge into society. Over 30,000 people from more than 120 countries find our university to be a place that promotes independent thinking and an environment that inspires excellence. Located in the heart of Europe, yet forging connections all over the world, we work together to develop solutions for the global challenges of today and tomorrow.