  Charge density wave (CDW) ordering has been an important topic of study for a
long time owing to its connection with other exotic phases such as
superconductivity and magnetism. The RTe3 (R = rare-earth elements) family of
materials provides a fertile ground to study the dynamics of CDW in van der
Waals layered materials, and the presence of magnetism in these materials
allows to explore the interplay among CDW and long range magnetic ordering.
Here, we have carried out a high-resolution angle-resolved photoemission
spectroscopy (ARPES) study of a CDW material GdTe3, which is antiferromagnetic
below 12 K, along with thermodynamic, electrical transport, magnetic, and Raman
measurements. Our Raman spectroscopy measurements show the presence of CDW
amplitude mode at room temperature, which remains prominent when the sample is
thinned down to 4-layers by exfoliation. Our ARPES data show a two-fold
symmetric Fermi surface with both gapped and ungapped regions indicative of the
partial nesting. The gap is momentum dependent, maximum along G-Z and gradually
decreases going towards G - M. Our study provides a platform to study the
dynamics of CDW and its interaction with other physical orders in two- and
three-dimensions.
