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(thickness∼30-50 nm) to probe charge density wave (CDW) physics at nanoscale. Variation ofelastic and electronic properties accompanying the CDW phase transition (around 30 K) are in-vestigated simultaneously using the devices as self-sensing heterodyne mixers. Elastic modulus isobserved to change by 10 per cent, an amount significantly larger than what had been reported ear-lier in the case of bulk crystals. We also study the modulation of conductance by electric field effect,and examine its relation to the order parameter and the CDW energy gap at the Fermi surface.