Fermi Surface and Magnetic Properties of PrTIn5 (T: Co, Rh, and Ir)

We grew single crystals of PrCoIn 5 , PrRhIn 5 , and PrIrIn 5 with the tetragonal crystal structure and measured the electrical resistivity, specific heat, magnetic susceptibility, magnetization and de Haas–van Alphen effect. These Pr compounds reveal no magnetic ordering. The topology of the Fermi surfaces is the same as that of a non-4 f reference compound LaRhIn 5 . The cyclotron mass and/or the electronic specific heat coefficient are also approximately the same as those of LaRhIn 5 . The magnetic susceptibility and magnetization are anisotropic, reflecting the crystal structure, which are well explained by the tetragonal crystalline electric field scheme with the singlet ground state.

[1]  H. Harima,et al.  A Drastic Change of the Fermi Surface at a Critical Pressure in CeRhIn5: dHvA Study under Pressure , 2005 .

[2]  Tatsuo C. Kobayashi,et al.  Recent advances in the magnetism and superconductivity of heavy fermion systems , 2004 .

[3]  K. Abe,et al.  Exotic heavy-fermion state in the filled skutterudite PrFe 4 P 12 uncovered by the de Haas-van Alphen effect , 2000, cond-mat/0010003.

[4]  Tatsuo C. Kobayashi,et al.  Fermi Surface, Magnetic and Superconducting Properties of LaRhIn5 and CeTIn5 (T: Co, Rh and Ir) , 2002 .

[5]  Y. Aoki,et al.  Unconventional Superconductivity in CeCoIn5 Studied by the Specific Heat and Magnetization Measurements , 2001 .

[6]  M. Yokoyama,et al.  Antiferro-Quadrupolar Ordering and Multipole Interactions in PrPb3 , 2001 .

[7]  Z. Fisk,et al.  Unconventional superconductivity in CeIrIn5 and CeCoIn5: specific heat and thermal conductivity studies. , 2000, Physical review letters.

[8]  K. Kindo,et al.  Magnetic and Electrical Properties in a Dense Kondo Compound PrSn3. , 2000 .

[9]  Fisk,et al.  Pressure-induced superconductivity in quasi-2D CeRhIn5 , 2000, Physical review letters.

[10]  P. Ahmet,et al.  Anisotropic Cooperative Jahn-Teller Effect and Metamagnetism in PrCu2 , 1998 .

[11]  H. Harima,et al.  Fermi surface properties and metamagnetism in the antiferroquadrupolar compound PrPb3 , 1997 .

[12]  P. Morin.  Quadrupolar ordering in CeAg , 1988 .

[13]  K. Stevens.  Matrix Elements and Operator Equivalents Connected with the Magnetic Properties of Rare Earth Ions , 1952 .