TY - JOUR
T1 - Short-range magnetic correlation with Kondo-lattice behavior in Ce3 Ir2 Ge2 and superconductivity in La3 Ir2 Ge2
AU - Li, D. X.
AU - Nimori, S.
AU - Homma, Y.
AU - Shiokawa, Y.
AU - Tobo, A.
AU - Onodera, H.
AU - Haga, Y.
AU - Onuki, Y.
N1 - Funding Information:
This work was supported by the Grant-in-Aid for Scientific Research (Grant No. 13640348) from the Ministry of Education, Culture, Sports, Science and Technology, Japan. A part of this work was performed at Low Temperature Science Division, Center of Low Temperature Science, Tohoku University.
PY - 2005/4/1
Y1 - 2005/4/1
N2 - We present the results of the magnetic susceptibility, magnetization, specific-heat, and electrical resistivity measurements on rare-earth iridium germanides Ce3 Ir2 Ge2 and La3 Ir2 Ge2, crystallizing in the La3 Ni2 Ga2 -type orthorhombic crystal structure. The results reveal that Ce3 Ir2 Ge2 is a Kondo-lattice system showing characteristic -ln T dependence of magnetic resistivity at high temperatures, while there does not exist evident sign of long-range magnetic ordering at least down to 1.8 K. Instead, a short-range magnetic correlation occurs at about 3.5 K. The La-based compound was found to be a type-II superconducting material with a relatively high critical temperature TC =4.7 K. A number of the relevant parameters, such as lower critical field, upper critical field, coherence length, penetration depth, and Ginzburg-Landau parameter, were estimated for the La3 Ir2 Ge2 sample.
AB - We present the results of the magnetic susceptibility, magnetization, specific-heat, and electrical resistivity measurements on rare-earth iridium germanides Ce3 Ir2 Ge2 and La3 Ir2 Ge2, crystallizing in the La3 Ni2 Ga2 -type orthorhombic crystal structure. The results reveal that Ce3 Ir2 Ge2 is a Kondo-lattice system showing characteristic -ln T dependence of magnetic resistivity at high temperatures, while there does not exist evident sign of long-range magnetic ordering at least down to 1.8 K. Instead, a short-range magnetic correlation occurs at about 3.5 K. The La-based compound was found to be a type-II superconducting material with a relatively high critical temperature TC =4.7 K. A number of the relevant parameters, such as lower critical field, upper critical field, coherence length, penetration depth, and Ginzburg-Landau parameter, were estimated for the La3 Ir2 Ge2 sample.
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U2 - 10.1063/1.1871335
DO - 10.1063/1.1871335
M3 - Article
AN - SCOPUS:17544368944
SN - 0021-8979
VL - 97
JO - Journal of Applied Physics
JF - Journal of Applied Physics
IS - 7
M1 - 073903
ER -