Dept Banner
Dept Banner
-
-
-
hybrid perovskite single crystals
rubrene OFETs
You're Invited!

Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model

Speaker: Jian-Xin Zhu, Los Alamos National Laboratory
Date & Time: January 15, 2008 - 1:30pm
Location: Room 385E


Zero-Temperature Magnetic Transition in an Easy-Axis Kondo Lattice Model
Physics and Astronomy


Jian-Xin Zhu, Los Alamos National Laboratory
1:30 PM, Room 385E

We address the quantum transition of a spin-1/2 antiferromagnetic Kondo lattice model with an easy-axis anisotropy using the extended dynamical mean field theory. We derive results in real frequency using the bosonic numerical renormalization group (bNRG) method and compare them with Quantum Monte Carlo results in Matsubara frequency. The bNRG results show a logarithmic divergence in the critical local spin susceptibility, signaling a destruction of Kondo screening. The T=0 transition is consistent with being second order. The bNRG results also display some subtle features; we identify their origin and suggest means for further microscopic
studies.

Contact Us

NR03HamiltonGate 607 Taylor Road
Piscataway, NJ 08854

P   848-445-1388
Email Us