RCQM Symposium on Fe-based Superconductivity

Description

Register in advance for this meeting:

https://riceuniversity.zoom.us/meeting/register/tJYvcu2vrT0oHtEgCZ4h3Cyy-Rm7of81SZEB

After registering, you will receive a confirmation email containing information about joining the meeting.

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Download Agenda

Link to the List of Open Questions

Rationale and Scope:

Since its discovery in 2008, the high-temperature Fe-based superconductors have been the subject of intense worldwide research. As the field progresses during the second decade, exciting new understandings and questions continue to emerge at a rapid pace on a variety of topics. The RCQM symposium will bring together active experimentalists and theorists to highlight the recent achievements on several particularly vibrant topics, and engage in discussions about the future directions of this field.

The symposium will revolve around the following focus topics on Fe-based superconductivity: 

  • Electron Correlations and Orbital Selectivity
  • Quantum Criticality
  • Nematicity
  • Electronic Topology

The total number of invited speakers will be close to 15.

 
Invited Speakers:

Electron Correlations/Orbital Selectivity:
Roser Valenti (Goethe U., Frankfurt, Germany)
Gabriel Kotliar (Rutgers U.)
Rong Yu (Renmin U., China)
Jianwei Huang (Rice U.)

Quantum Criticality: 
Matthias Ikeda (Stanford U.)
Nigel Hussey (Radboud U., Netherlands)
Amalia Coldea (Oxford U., U.K.)
Ding Hu (Hangzhou Normal, China)

Nematicity:
Donglai Feng (USTC, Hefei, China)
Taka Shibauchi (U. Tokyo, Japan)
Anna Böhmer (KIT, Karlsruhe, Germany)
Paul Malinowski (U. Washington)
Yu Song (Zhejiang University)

Electronic Topology:
Peng Zhang (U. Tokyo, Japan)
Vidya Madhavan (UIUC)
Ryan Day (UBC, Canada)
Ziqiang Wang (Boston College)

 
Format:

The symposium will be held online. There will be six sessions of invited talks (each lasting 20 minutes, plus 10 minutes of discussion). To accommodate participants from all continents, we plan to have morning and night sessions during each day of the three day period.

The morning sessions will be between 10am-11:30am US CST that should work for everyone except in Asia, and the night sessions between 8:30-10pm US CST for everyone except those from Europe.

We hope to have the permission to record the talks, so that we can make the video recordings available after each session, and the participants from Asia and Europe can have immediate access to the talks given in a previous session that they were unable to attend.

 

Agenda:

All times listed -- US CST

 

Monday January 18

Session I

Full Seminar Video: https://www.youtube.com/watch?v=SkV6jcuK6IQ

10:00—10:30am         Nigel Hussey (Radboud U., Netherlands)

            "Signatures of strange metallic transport in FeSe1-xSx "

            Video Link: https://www.youtube.com/watch?v=NjjqPhuG0lk

10:30—11:00am         Amalia Coldea (Oxford U., U.K.)

"Electronic correlations at a putative nematic critical point in FeSe1-xStuned by pressure and chemical pressure"

Video Link: https://www.youtube.com/watch?v=AxXennly3Yk

11:00—11:30am         Ryan Day (UBC, Canada)

"Untangling the Electronic Structure of LiFeAs: Implications for Bulk Superconductivity and Avenues Towards Topological Superconductivity"

 

Session II

Full Seminar Video: https://www.youtube.com/watch?v=QkHHnBP8Lkc

8:30—9:00pm             Gabriel Kotliar (Rutgers U.)

            "Theory of Hund Metals and Iron based Superconductors"

9:00—9:30pm             Rong Yu (Renmin U., China)

"Orbital selectivity: from iron chalcogenides to iron pnictides"

Video Link: https://www.youtube.com/watch?v=LHCZkWFRRhw

9:30—10:00pm           Jianwei Huang (Rice U.)

            "Orbital-selective correlations in FeTe1-xSex "  

            Video Link: https://www.youtube.com/watch?v=hTNwE5p5psE 

Tuesday January 19

Session III

Full Seminar Video: https://www.youtube.com/watch?v=AFs370N_a1M

10:00—10:30am         Roser Valenti (Goethe U., Frankfurt, Germany)

"Exploring non-local correlations in iron-based superconductors: a theoretical approach"

Video Link: https://www.youtube.com/watch?v=MIKD2xKDDGw

10:30—11:00am         Vidya Madhavan (UIUC)

"Signatures of dispersing Majorana modes in a proximitized topological material"

Video Link: https://www.youtube.com/watch?v=NsCAGOXul3M

11:00—11:30am         Ziqiang Wang (Boston College)

            "Quantum anomalous vortex and vortex Majorana zero modes in FeSC - experiment and theory"

             Video Link: https://www.youtube.com/watch?v=6GubevjWzXI

 

Session IV 

Full Seminar Video:  https://www.youtube.com/watch?v=MwxQRzgMrKM

8:30—9:00pm             Peng Zhang (U. Tokyo, Japan)

"Multiple topological states, topological superconductivity and Majorana modes in iron-based superconductors"

Video Link: https://www.youtube.com/watch?v=oldHontLtHI

9:00—9:30pm             Ding Hu (Hangzhou Normal, China)

"Magnetic quantum criticality in BaFe2(As1-xPx)2"

Video Link: https://www.youtube.com/watch?v=ca2hna5e3Gc

9:30—10:00pm           Yu Song (UC Berkeley/Zhejiang U.)

            "Nematicity in a Local-Moment Iron-Chalcogenide"

            Video Link: https://www.youtube.com/watch?v=LZP0Pgg2P-8

 

Wednesday January 20

Session V

Full Seminar Video: https://www.youtube.com/watch?v=ISIBKjnGSKY&feature=youtu.be

10:00—10:30am         Paul Malinowski (U. Washington)

            "Suppression of superconductivity by anisotropic strain near a nematic quantum critical point"

            Video Link: https://www.youtube.com/watch?v=PgSse0A1ic4

10:30—11:00am         Matthias Ikeda (Stanford U.)

            "Nematic qunatum criticality studied through elastocaloric effect"

            Video Link: https://www.youtube.com/watch?v=Q5tpbIzPJaE

11:00—11:30am         Anna Böhmer (KIT, Karlsruhe, Germany)

            "Evolution of nematic fluctuations in Ni-doped CaKFe4As4 and comparison with hole-doped BaFe2As2"

            Video Link: https://www.youtube.com/watch?v=mKaahzuSCXI

 

Session VI

8:30—9:00pm             Tong Zhang (Fudan U., Shanghai, China)

            "STM measurement of (π, π) nematic state in RbFe2As2"

Video Link: https://www.youtube.com/watch?v=UGeeCITn1ww&feature=youtu.be

9:00—9:30pm             Taka Shibauchi (U. Tokyo, Japan)

            "Exotic superconducting states in FeSe-based nematic superconductors"

9:30—10:00pm           Open Discussion

 


Organizers:

For questions on the scientific program, please contact one of the organizers below.

Jiun-Haw Chu          (U. Washington)           jhchu@uw.edu
Pengcheng Dai        (Rice University)           pdai@rice.edu
Qimiao Si                 (Rice University)           qmsi@rice.edu
Ming Yi                    (Rice University)           mingyi@rice.edu

For logistics questions, please contact:

Alice Chow              (Rice University)            alice.chow@rice.edu
Ginny Whitaker        (Rice University)            ginny.w@rice.edu