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Magnetoresistance and magnetization anomalies in CeB6 |
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| Authors: | AV Bogach VV Glushkov SV Demishev NA Samarin AV Dukhnenko NE Sluchanko |
| Institution: | a Low Temperatures and Cryogenic Engineering Department, A.M. Prokhorov General Physics Institute of Russian Academy of Sciences, Vavilov street, 38, 119991, GSP-1, Moscow, Russia b Moscow Institute of Physics and Technology, Institutskii street, 9, Dolgoprudnii, Moscow Region 141700, Russia c Department of Refractory Materials, Institute for Problems of Materials Science of Ukrainian National Academy of Sciences, Krzhizhanovskii street, 3, 03680 Kiev, Ukraine |
| Abstract: | High precision magnetoresistance (MR) Δρ/ρ(H,T) and magnetization M(H,T) measurements have been carried out for well known and typical strongly correlated electron system—cerium hexaboride. The detailed measurements have been fulfilled on single crystalline samples of CeB6 over a wide temperature range  in magnetic fields up to 70 kOe. It was shown that the MR anomalies in the magnetic heavy fermion compound under investigation can be consistently interpreted in the frameworks of a simple relation between resistivity and magnetization—Δρ/ρ∼M2 obtained by Yosida Phys. Rev. 107(1957)396]. A local magnetic susceptibility χloc(T,H)=(1/H*(d(Δρ/ρ)/dH))1/2 was deduced directly from the MR Δρ(H,T) measurements and compared with the experimental data of magnetization M(H,T). The magnetic susceptibility dependences χloc(T,H) and χ(T,H) obtained in this study for CeB6 allow us to analyze the complicated H-T magnetic phase diagram of this so-called dense Kondo-system. |
| Keywords: | Heavy fermions Magnetoresistance Magnetization |
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