Magnetoresistance and Hall effect of antiferromagnetic uranium compound URhIn5

[摘要] Magnetoresistance and Hall effect in URhIn5have been measured across the antiferromagnetic transition temperature TN= 98 K. In the paramagnetic state, Hall coefficient is small and temperature independent. Below the TN, Hall coefficient suddenly changes to a negative value, suggesting that small light electron Fermi surface dominate electrical conductivity. The observation is consistent with small Fermi surfaces detected by previous de Haas-van Alphen experiment.

[发布机构] Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki, Tokai; 319-1195, Japan^1;Graduate School of Engineering, Nagoya Institute of Technology, Nagoya; 466-8555, Japan^2;Institute for Materials Research, Tohoku University, Sendai; 980-8577, Japan^3;Department of Physics and Astronomy, University of California, Irvine; CA; 92697, United States^4

[关键词] Antiferromagnetic transition temperature;Antiferromagnetics;De Haas-van Alphen;Electrical conductivity;Hall coefficient;Negative values;Paramagnetic state;Temperature independents