Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures

Details Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures

2001-02-08

arxiv.org/abs/cond-mat/0102155v1

Phys. Rev. B 63, 174435 (2001)

Physics

Condensed Matter

Strongly Correlated Electrons

To be published in Phys. Rev. B

Scientific paper

10.1103/PhysRevB.63.174435

We report the results of Hall coefficient R_H and magnetoresistance (MR) measurements on single crystalline samples of Sr3Ru2O7 grown by the floating zone method. R_H was found to be positive over the entire temperature range studied (0.3 - 300K). Its temperature (T) dependence follows closely that of the magnetic susceptibility, including a maximum at a characteristic temperature T=17 K. We show that R_H can be decomposed into normal and anomalous parts as in the case of skew scattering in heavy-fermion compounds and ferromagnetic metals. This, together with the observation that the longitudinal MR is greater than the transverse MR at the same magnetic field and temperature, suggests that magnetic fluctuations dominate the electrical transport properties in Sr3Ru2O7. We found a crossover in the sign of the MR at T*, from positive to negative as the temperature increased, for both the transverse and the longitudinal configurations. In addition, a non-monotonic behavior in the field dependence of the MR was found at low temperatures. These observations suggest that the magnetic correlations in Sr3Ru2O7 at ambient pressure undergo a qualitative change as the temperature is lowered. Above T*, they are dominated by ferromagnetic instability. However, below T*, the system crosses over to a different behavior, controlled possibly by a canted antiferromagnetic instability.

Affiliated with

Also associated with

No associations

Rating

Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures 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 Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrical Transport Properties of Single Crystal Sr3Ru2O7: The Possible Existence of an Antiferromagnetic Instability at Low Temperatures will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-89861