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The electronic density of states (DOS) ofLa$_{0.625}$Ca$_{0.375}$MnO$_3$(LCMO) strain free epitaxial thin films with aninsulator-metal transition temperature (T$_{IM}$) of 250 K was probed usingvariable temperature scanning tunneling microscopy and spectroscopy. We find adepression in the DOS with a finite zero bias conductance (ZBC) signifying apseudogap (PG) in 78-310 K temperature range. With cooling, the ZBC is found toincrease indicating an increased DOS near E$_F$. We interpret PG as a signatureof Jahn-Teller polarons while ZBC change, in agreement with the bulkinsulator-metal transition, optical Drude peak, and photoemission experimentsindicates the presence of free carriers at the Fermi energy in the metallicphase. The free carriers are discussed in terms of correlated polaronic states.

Polaronic Pseudogap in the Metallic Phase of La$_{0.625}$Ca$_{0.375}$MnO$_3$ Thin Films