Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$

Details Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$ Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$

2008-03-31

arxiv.org/abs/0803.4424v2

Phys. Rev. Lett. 101, 056402 (2008)

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 4 figures

Scientific paper

10.1103/PhysRevLett.101.056402

The evolution of the Fermi surface of CeRh$_{1-x}$Co$_x$In$_5$ was studied as a function of Co concentration $x$ via measurements of the de Haas-van Alphen effect. By measuring the angular dependence of quantum oscillation frequencies, we identify a Fermi surface sheet with $f$-electron character which undergoes an abrupt change in topology as $x$ is varied. Surprisingly, this reconstruction does not occur at the quantum critical concentration $x_c$, where antiferromagnetism is suppressed to T=0. Instead we establish that this sudden change occurs well below $x_c$, at the concentration x ~ 0.4 where long range magnetic order alters its character and superconductivity appears. Across all concentrations, the cyclotron effective mass of this sheet does not diverge, suggesting that critical behavior is not exhibited equally on all parts of the Fermi surface.

Affiliated with

Also associated with

No associations

Rating

Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$ 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 Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fermi Surface Reconstruction in CeRh$_{1-x}$Co$_{x}$In$_{5}$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-197337