Abstract
The electronic transport, magnetic, and specific heat measurements on CeFe4As12 single crystals grown under high pressure of ∼4 GPa have been performed, in order to clarify the reported contradictory results on the electronic state between the single crystals grown under minute pressure of ∼4 MPa and polycrystalline samples synthesized under high pressure (∼4 GPa). Special emphasis was put on the huge sample dependent physical properties reported in the former, which was attributed to huge sample dependent lattice constant and morphology of grown single crystals. We found similar sample-dependent electronic transport properties also in our high pressure grown single crystals with little sample dependence of the lattice constant, suggesting that neither the lattice constant nor morphology has direct connection with the electronic properties in CeFe4As12. Based on these facts, the reason for such a sensitive sample-dependent electronic transport properties of CeFe4As12 is discussed, in correlation with the ...
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