Magnetic-Field Control of Quantum Critical Points of Valence Transition

Details Magnetic-Field Control of Quantum Critical Points of Valence Transition Magnetic-Field Control of Quantum Critical Points of Valence Transition

2008-04-30

arxiv.org/abs/0804.4734v2

Phys. Rev. Lett. 100 (2008) 236401

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.100.236401

We study the mechanism how critical end points of first-order valence transitions are controlled by a magnetic field. We show that the critical temperature is suppressed to be a quantum critical point (QCP) by a magnetic field and unexpectedly the QCP exhibits nonmonotonic field dependence in the ground-state phase diagram, giving rise to emergence of metamagnetism even in the intermediate valence-crossover regime. The driving force of the field-induced QCP is clarified to be cooperative phenomena of Zeeman effect and Kondo effect, which create a distinct energy scale from the Kondo temperature. This mechanism explains peculiar magnetic response in CeIrIn5 and metamagnetic transition in YbXCu4 for X=In as well as sharp contrast between X=Ag and Cd.

Affiliated with

Also associated with

No associations

Rating

Magnetic-Field Control of Quantum Critical Points of Valence Transition does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Magnetic-Field Control of Quantum Critical Points of Valence Transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic-Field Control of Quantum Critical Points of Valence Transition will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-576630