Melting of Unidirectional Charge Density Waves across Twin Domain Boundaries in GdTe3

• DOI: 10.1021/acs.nanolett.3c03721
• Publication Date: 2023-11-29T15:11:05Z
• Authors: Sanghun Lee; Eunseo Kim; Junho Bang; Jongho Park; Changyoung Kim; Dirk Wulferding; Doohee Cho
• Keywords: Charge Density Wave; Topological defect

Solids undergoing a transition from order to disorder experience the proliferation of topological defects. The melting process generates transient quantum states. However, their dynamical nature with femtosecond lifetime hinders exploration atomic precision. Here, we suggest an alternative approach by focusing on interface created competing degenerate We use scanning tunneling microscope (STM) visualize unidirectional charge density wave (CDW) and its spatial progression ("static melting") across twin domain boundary (TDB) in layered material GdTe$_{3}$. Combining STM lock-in technique, reveal that parameter amplitude attenuates formation dislocations thus two different CDWs coexist near TDB, reducing CDW anisotropy. Notably, discover correlation between this anisotropy gap. Our study provides valuable insight into behavior defects