Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$

Details Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$ Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$

2003-02-12

arxiv.org/abs/cond-mat/0302226v1

Phys. Rev. Lett. 91, 257001 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

5 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.91.257001

We measured specific heat and resistivity of heavy fermion CeCoIn5 between the superconducting critical field $H_{c2} = 5 T$ and 9 T, with field in the [001] direction, and at temperatures down to 50mK. At 5T the data show Non Fermi Liquid behavior down to the lowest temperatures. At field above 8T the data exhibit crossover from the Fermi liquid to a Non Fermi Liquid behavior. We analyzed the scaling properties of the specific heat, and compared both resistivity and the specific heat with the predictions of a spin-fluctuation theory. Our analysis leads us to suggest that the NFL behavior is due to incipient antiferromagnetism (AF) in CeCoIn5, with the quantum critical point in the vicinity of the $H_{c2}$. Below $H_{c2}$ the AF phase which competes with the paramagnetic ground state is superseded by the superconducting transition.

Affiliated with

Also associated with

No associations

Rating

Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$ 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 Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Avoided Antiferromagnetic Order and Quantum Critical Point in CeCoIn$_5$ will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-438992