Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State

Details Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State

2008-12-13

arxiv.org/abs/0812.2524v2

Europhys. Lett. 87, 67002 (2009)

Physics

Condensed Matter

Strongly Correlated Electrons

6 pages, 6 figures, Version of publication in EPL, removing the contents of honeycomb lattice and adding some contents of squa

Scientific paper

10.1209/0295-5075/87/67002

In this paper, based on the formulation of an O(3) non-linear sigma model, we study the two-dimensional Pi-flux Hubbard model at half-filling. A quantum non-magnetic insulator is explored near the metal-insulator transition that may be a possible candidate of the spin liquid state. Such quantum non-magnetic insulator on square lattice is not induced by frustrations. Instead, it originates from quantum spin fluctuations with relatively small effective spin moments. In the strong-coupling limit, our results of the spin velocity and spin order parameter agree with results obtained from earlier calculations.

Affiliated with

Also associated with

No associations

Rating

Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State 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 Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Quantum Non-Magnetic state near Metal-Insulator Transition - a Possible Candidate of Spin Liquid State will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-193518