Physics 838 Graduate Student Seminar

In 1990, a seminar was initiated for QMC (formerly CNAM/CSR) graduate students in order to present their research to the other students, postdocs, and faculty in the Center. In addition to fostering a rich, collaborative environment in which students learn about the breadth and scope of research being done in QMC, the idea of this series is to teach several crucial skills to our students:

1) How to present their research in a clear and time-efficient way to an audience that was not expert in their area of research;

2) How to best answer questions during their presentations;

3) How to ask good questions when in an audience (or interview), in particular about research beyond their own narrow PhD topic.

In this seminar, students submit formalized feedback to each weekly presenter, providing informative information about presentation style, research content and tips for improvement.

Best Speaker Awards

At the end of each term, a cash prize award is given for the best student and postdoc presentations based on class feedback scores. Previous winners are listed here:

2018 (fall) Chris Eckberg (student), Jen-Hao Yeh (postdoc)

2015 Paul Syers, Jasper Drisko

2014 Sean Fackler, Paul Syers,

2013 Kevin Kirshenbaum, Kirsten Burson

2012 Baladitya Suri, Kristen Burson

2011 (fall) Sergii Pershoguba, Ted Thorbeck

2011 (spring) Anirban Gangopadhyay, Baladitya Suri

2010 (fall) Christian J. Long, Tomasz M. Kott

2010 (spring) Tomasz M. Kott, Kevin Kirshenbaum

2009 (fall) Arun Luykx, Jen-Hao Yeh


Physics 838 Seminar
02.10.2020 4:00 pm - 5:00 pm
John S. Toll Rm 1201


Speaker: Wen-Chen Lin

Title: Phase Diagram of Spin Triplet Superconductor UTe2 Under Pressure and Magnetic Field

Abstract: The heavy fermion superconductor UTe2 has recently drawn much attention due to several exotic properties. It exhibits two reentrant superconducting states under extremely high magnetic fields that appear correlated with ferromagnetic interactions, and has been proposed as a candidate three-dimensional topological superconductor. Here, we report the details of the field-temperature-pressure phase diagram of UTe2 under pressures up to 18.8kbar and high magnetic fields. Electrical resistivity and tunnel diode oscillator (TDO) measurements were performed under external magnetic field along the crystallographic b axis (hard axis), revealing a systematic progression of the superconducting and field-polarized phases that have relations to those observed at ambient pressure. We will discuss our observations and their relevance on the interplay between ferromagnetism and superconductivity in this rich system.