Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis

Details Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis

2010-11-20

arxiv.org/abs/1011.4578v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 2 figures, to appear in JPSJ 80 (2011) No.1

Scientific paper

We have studied the magnetization and magnetoresistance of CeRu2Al10 in the applied magnetic field H along the c-axis up to ~ 55 T. The magnetization M at low temperatures shows an H-linear increase with a small slope of M/H than that for H // a-axis up to ~ 55 T after showing a small anomaly at H ~ 4 T, which indicates that the critical field to the paramagnetic phase H_c^p is higher than 55 T for H // c-axis. The magnetization curves for H // a- and c-axes below the antiferro magnetic (AFM) transition temperature T0 behave as if the magnetic anisotropy in the AFM-ordered phase is small, although there exists a large magnetic anisotropy in the paramagnetic phase, which favors the easy magnetization axis along the a-axis. On the other hand, very recently, Khalyavin et al. have reported that the AFM order where the magnetic moment is parallel to the c-axis takes place below T0. These results indicate that the AFM order in this compound is not a simple one. The longitudinal magnetoresistance for H // c-axis at low temperatures shows no anomaly originating from the phase transition, but shows oscillations below 4.2 K. This oscillatory behavior below 4.2 K originates from the Shubnikov-de Haas oscillations, from which the cross section of the Fermi surface normal to the c-axis is estimated to be 1.0*10^14 cm-2, with no large effective mass. This is the first direct evidence of the existence of the Fermi surface below T0.

Affiliated with

Also associated with

No associations

Rating

Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis 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 Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-21814