PhD Student Position (f/m/x) in “Quantum Hall calorimetry of quantum materials“

Universität zu Köln; Köln; On-site; EUR 29,000 - 40,000; Part time

Benefits offered by this job

Exciting research

Diverse environment

Family balance support

Advanced training

Health management

Flexible hours

Job summary

Universität zu Köln invites applications for a PhD Student position in the Bocquillon group, focused on quantum calorimetry of quantum materials. The project aims to construct an ultra-sensitive calorimeter to probe heat flow in layered quantum systems and to explore Majorana-like states in alpha-RuCl3, with international collaboration starting with the University of Tokyo.

The successful candidate will hold a Master’s degree in Physics, preferably in Quantum or Condensed Matter physics, and

Qualifications

• Excellent academic record and Masters in Physics (Quantum/Condensed Matter preferred).
• Research experience in cryogenic systems, quantum transport measurements, nano-fabrication or cleanroom techniques is advantageous.

Responsibilities

• Develop a new ultra-sensitive quantum calorimeter to study heat flow in exotic quantum materials.
• Collaborate with partners at the University of Tokyo to build cutting-edge techniques.
• Contribute to high-impact quantum materials research within Bocquillon Working Group.

Skills

Quantum physics

Condensed matter physics

Cryogenic systems

Quantum transport measurements

Nano-fabrication

Cleanroom techniques

Education

Masters in Physics

Job description

PhD Student Position (f/m/x) in “QuantumHall calorimetry of quantum materials“

We are one of the largest and oldest universities in Europe and one of the most important employers in our region.Our broad range of subjects, the dynamic development of our main research areas and our central location in Cologne make us attractive for students and researchers from around the world. We offer a wide range of career opportunities in science, technology, and administration.

One PhD Student position is available in the group ofProfessor Erwann Bocquillon, which specializes in thequantum transport of quantum materials (https://ph2.unikoeln.de/en/research-groups/bocquillon).

YOUR TASKS

• This PhD project will develop a new ultra-sensitive quantum calorimeter to explore how heat flows through exotic quantum materials. By combining layered crystals with quantum Hall devices, the researcher will be able to probe elusive states of matter with unprecedented precision—starting with alpha-RuCl3, a leading candidate for hosting Majorana-like particles and a quantum spin liquid. The project offers an opportunity to build new cutting-edge techniques in collaboration with partners at the University of Tokyo (Japan), while tackling some exciting

YOUR PROFILE

• The candidate should possess an excellent academicrecord and hold a Masters in Physics, preferably with a major in Quantum Physics or Condensed MatterPhysics. Research experience in one or several of the following fields will be appreciated: cryogenic systems, quantum transport measurements, nano-fabricationand cleanroom techniques
• An excellent command of English, as well as highmotivation, commitment, good communication skillsand team spirit are expected.

WE OFFER

• An exciting research project at the forefront of research
• A diverse working environment with equal opportunities
• Support in balancing work and family life
• Extensive advanced training opportunities
• Occupational health management offers
• Flexible working time models

The University of Cologne promotes equal opportunitiesand diversity. Women will be considered preferentiallyin accordance with the Equal Opportunities Act of NorthNRW). We also expressly welcome applications from allsuitable candidates regardless of their gender, nationality,ethnic and social origin, religion, disability, age, sexualorientation and identity.

The position is available from 1 January 2027 on a parttime basis (29,87 hours per week).The position is to be filled for a fixed term until 31 December 2029. If theapplicant meets the relevant wage requirements andpersonal qualifications, the salary is based on remuneration group 13 TV-L of the pay scale for the Germanpublic sector.

Institute of Physics II | Bocquillon Working Group

Faculty of Mathematics and Natural Sciences