Resonating valence bond theory of the spin-1/2 kagome Heisenberg antiferromagnet

Recent studies of highly frustrated antiferromagnets (AFMs) have demonstrated the qualitative impact of virtual, longer-range singlet excitations on the effective RVB tunneling parameters of the low energy sector of the problem [1,2]. Here, I will discuss the current state of affairs on the RVB description of the spin-1/2 kagome AFM, and present new results that settle a number of issues in this problem [3].

 

[1] I. Rousochatzakis, Y. Wan, O. Tchernyshyov, and F. Mila, PRB 90,

100406(R) (2014)

[2] A. Ralko and I. Rousochatzakis, PRL 115, 167202 (2015) [3] in preparation.

Collection/Series: 
Event Type: 
Seminar
Scientific Area(s): 
Event Date: 
Tuesday, April 18, 2017 - 15:30 to 17:00
Location: 
Alice Room
Room #: 
301