TY - JOUR
T1 - Presolidification in Eutectic Droplets
AU - Poelsema, Bene
AU - Zhang, Zhiguo
AU - Zandvliet, Harold J.W.
AU - Van Houselt, Arie
N1 - Funding Information:
Z. Z. thanks the China Scholarship Council (CSC 201708130089) for financial support. H. J. W. Z. and A. v. H. acknowledge the Nederlandse organisatie voor Wetenschappelijk Onderzoek (NWO) for financial support.
Publisher Copyright:
© 2023 American Physical Society.
PY - 2023/9/8
Y1 - 2023/9/8
N2 - Evidence of presolidification, the counterpart to premelting, is reported. Near the eutectic temperature, TC, the propagation direction of thermal gradient driven motion of eutectic Ge-Pt droplets on Ge(110) is determined by presolidification. Well above TC, the micron-sized droplets move towards the hottest location at the substrate, irrespective of crystalline direction. At 90 K above TC, a strong, unanticipated preference for propagation along the substrate [001] azimuth suddenly emerges, which is attributed to presolidification at the liquid-solid interface. The propagation along [001] is accompanied by a distinct change in shape from compact to elongated along [001].
AB - Evidence of presolidification, the counterpart to premelting, is reported. Near the eutectic temperature, TC, the propagation direction of thermal gradient driven motion of eutectic Ge-Pt droplets on Ge(110) is determined by presolidification. Well above TC, the micron-sized droplets move towards the hottest location at the substrate, irrespective of crystalline direction. At 90 K above TC, a strong, unanticipated preference for propagation along the substrate [001] azimuth suddenly emerges, which is attributed to presolidification at the liquid-solid interface. The propagation along [001] is accompanied by a distinct change in shape from compact to elongated along [001].
KW - 2023 OA procedure
UR - http://www.scopus.com/inward/record.url?scp=85172242762&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.131.106201
DO - 10.1103/PhysRevLett.131.106201
M3 - Article
C2 - 37739350
AN - SCOPUS:85172242762
SN - 0031-9007
VL - 131
JO - Physical review letters
JF - Physical review letters
IS - 10
M1 - 106201
ER -