Postdoctoral Position in Advanced Light Source

This postdoctoral appointment is for the study of electronic properties of two dimensional materials and heterostructures and is under the direction of Prof. J. Katoch at Carnegie Mellon University (CMU). The postdoc will be based at the Advanced Light Source (ALS) in Berkeley, CA, and directly collaborate with scientists at CMU, Aarhus University (Denmark) and collaborators at ALS and elsewhere.

The successful candidate shall lead spectromicroscopy measurements at the Advanced Light Source under the supervision of Dr. E. Rotenberg, and will work hand-in-hand with team members around the world for the design, fabrication, and measurement of two-dimensional heterostructure devices.

The goal of this position is to explore the electronic structure and many-body interactions of electrons in 2D heterostructure devices, having applied fields and currents. These effects are manifested in the electronic band structure, in the chemical bonds, or in the spin structure of materials, and in spatial inhomogenities of these properties. Measurements will be obtained using tools such as

nanoprobe angular photoemission spectroscopy (nanoARPES), x-ray absorption spectroscopy, x-ray magnetic circular dichroism, and low energy electron microscopy combined with photoelectron emission microscopy (LEEM/PEEM). The postdoc is encouraged to incorporate other techniques (e.g. spectroscopy, scattering, or x-ray and electron transmission microscopy techniques) at ALS and the Molecular Foundry through collaborations and general user proposals.

The postdoc will plan and perform experiments and analyze data using state of the art tools as well as extend these capabilities as needed. The postdoc will attend scientific meetings, present results, and prepare publications to advance the field.

Duties/Responsibilities

• Use microscopic band structure mapping and statistical methods to quantify heterogeneity in quantum materials
• Occasionally expand experimental instrumentation or analysis techniques as needed, participate in hands on tasks to ensure high quality measurements.
• Write proposals to ALS and other user facilities for use of advanced instrumentation.
• Publish work in peer-reviewed scientific literature.
• Present work at group meetings and national conferences
• Take an active role in coordinating among project partners and initiating new connections within the project.
• Participating or leading in sample and device fabrication
• Participation in collaborations with scientists participating in the project.
• Work in a safe and healthy manner
• Be respectful and inclusive in interactions with others and respect diversity

Essential

• Interest in the basic materials science of low dimensional materials
• PhD in Physics, Chemistry, Materials Science, or a related field.
• General understanding of the principles x-ray based techniques (instrumentation, measurements, and interpretation) such as XPS, XAS/XMCD, and x-ray scattering.
• Detailed understanding and experience in ARPES.
• Experience with general ultra-high vacuum instrumentation.
• Strong publication record in peer-reviewed international scientific journals, with experience in the preparation and publication of scientific papers.

Desirable

• Experience in sample preparation techniques such as epitaxial growth, micromechanical exfoliation and micromechanical transfer for analysis of single layers and heterostructures or crystal growth.
• Experience in surface science sample preparation techniques.
• Experience in complementary characterization techniques such as electronic transport, electron microscopy, magnetometry, Raman spectroscopy.
• Experience in device fabrication using lithography methods and measurement of transport properties.
• Experience in low temperature experimental methods.
• Basic knowledge of a programming language
• Basic engineering experience

Application to this position must include a professional vita, or resume including a list of publications, and the names and contact information for three referees who will submit letters of recommendation.