Tunneling spectroscopy ofRTe2(R=La,

Tunneling spectra are measured on the charge-density wave ~CDW! compound LaTe 2 and the isostructural antiferromagnet CeTe 2 with TN54.3 K by a break-junction method. In contrast to the well-developed CDW gap 2D50.9 eV wide for LaTe2, the spectrum of polycrystal CeTe 2 is V shaped with 2D51.2 eV. These gap structures agree with the optical-conductivity spectra for both compounds. The V-shaped spectrum for CeTe 2 suggests that the CDW gap is modified by the presence of electronic states hybridized with the 4 f electron states. A smaller gap 2 D* 50.5 eV was observed for the bulk tunneling current in the c plane of single crystals of CeTe2. On cooling belowTC56.1 K, where a short-range ferromagnetic order sets in, 2 D* exhibits a sharp minimum. Furthermore, subgap anomalies appear below TC and suddenly increase at TN . The normalized zero-bias conductance shows a minimum at TC and a sudden increase below TN . These facts suggest possible interplay of CDW’s and magnetic order in CeTe 2.