Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Affiliates 
 Alumni 
 Visitors 
 Students 
 Research 
 ICAM-LANL 
 Quantum 
 Publications 
 Publications 
 2007 
 2006 
 2005 
 2004 
 2003 
 2002 
 2001 
 2000 
 <1999 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Colloquia 
 Colloquia Archive 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Colloquia 
 
 Jobs 
 Students 
 Summer Research 
 Student Application 
 Visitors 
 Description 
 Past Visitors 
 Services 
 General 
 PD Travel Request 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Monday, August 24, 2015
3:00 PM - 4:00 PM
CNLS Conference Room (TA-3, Bldg 1690)

Colloquium

CeRhIn5: A model system for correlated electrons

Filip Ronning
MPA-CMMS

CeRhIn5, discovered at Los Alamos 15 years ago, is a model system for understanding strongly correlated electron systems. Correlated electron systems abound with remarkable phenomena, such as the fractional quantum Hall effect, colossal magnetoresistance, and superconductivity. These phenomena arise due to competing energy scales. Heavy fermions are a particular striking manifestation of this competition, where itinerant electrons interact with localized magnetic moments to yield new effective heavy quasiparticles with masses hundreds of times larger than a free electron. These new heavy quasiparticles have additional instabilities to magnetic, superconducting, and other exotic states, that are prototypical of many strongly correlated electron systems. Of the wealth of heavy fermion materials CeRhIn5 and its sister compounds are particularly fascinating for three principle reasons. First, their incredible purity reveals new phenomena and enables detailed experimental studies not possible in other materials. Second, it has the highest superconducting transition temperature of any heavy fermion material. Third, due to the small energy scales it is highly tunable between different ground states with only modest perturbations. In this talk, I will review the basic properties, relevant energy scales, new surprises, and open questions from the CeRhIn5 family of heavy fermion materials.

Host: Mila Adamska