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Magnetization, heat capacity, electrical resistivity, thermoelectric power,and Hall effect have been investigated on single-crystalline Ce_2PdSi_3. Thiscompound is shown to order antiferromagnetically below N'eel temperature (T_N)\~3 K. The Sommerfeld coefficient far below T_N is found to be about 110 mJ/K^2mol Ce, which indicates the heavy-fermion character of this compound. Thetransport and magnetic properties exhibit large anisotropy with an interplaybetween crystalline-electric-field (CEF) and Kondo effects. The sign ofthermoelectric power is opposite for different directions at high temperaturesand the ordinary Hall coefficient is anisotropic with opposite sign fordifferent geometries, indicating the anisotropic Fermi surface. The CEFanalysis from the temperature dependence of magnetic susceptibility suggeststhat the ground state is |+/-1/2>. The first and the second excited CEF doubletlevels are found to be located at about 30 and 130 K, respectively. The Kondotemperature is estimated to be the same order as T_N, indicating the presenceof a delicate competition between the Kondo effect and magnetic order.Comment: RevTeX, 6 pages, 5 encapsulated postscript figures; will appear in  Physical Review B (as regular article

physical review. b, condensed matter

Magnetic, thermal, and transport properties of single crystals of antiferromagnetic Kondo-lattice<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">Ce</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant="normal">PdSi</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>

Magnetic, thermal, and transport properties of single crystals of antiferromagnetic Kondo-latticeCe2PdSi3