Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth
If a material grows on another material with a largely different lattice constant, which of the two adapts for an energetically favorable growth? To tackle this question, we investigate the growth of Ag on Cu(111) by variable temperature scanning tunneling microscopy. The structures grown between 12...
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| Format: | Article |
| Language: | English |
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MDPI AG
2019-05-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/9/5/710 |
| _version_ | 1819231241173467136 |
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| author | Carsten Sprodowski Karina Morgenstern |
| author_facet | Carsten Sprodowski Karina Morgenstern |
| author_sort | Carsten Sprodowski |
| collection | DOAJ |
| description | If a material grows on another material with a largely different lattice constant, which of the two adapts for an energetically favorable growth? To tackle this question, we investigate the growth of Ag on Cu(111) by variable temperature scanning tunneling microscopy. The structures grown between 120 and 170 K are remarkably different from those grown between 200 and 340 K. The low-temperature structure is rectangular-like and consists of stacked rods, 7 to 8 Ag atoms long, which form a superstructure without long-range order. This structure covers the whole surface prior to nucleation of further layers. The high-temperature structure is hexagonal and consists of misfit dislocations forming 8 × 8 to 10 × 10 superstructures. For this structure, second layer nucleation sets in far before the closure of the first monolayer. While both structures are driven by the large lattice misfit between the two materials, the growing Ag layer adapts to the Cu surface at low temperature, while the Cu surface adapts to the growing Ag layer at higher temperature. |
| first_indexed | 2024-12-23T11:41:50Z |
| format | Article |
| id | doaj.art-1cfa600ec0254f3d84418c13b0460d79 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-12-23T11:41:50Z |
| publishDate | 2019-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-1cfa600ec0254f3d84418c13b0460d792022-12-21T17:48:26ZengMDPI AGNanomaterials2079-49912019-05-019571010.3390/nano9050710nano9050710Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during GrowthCarsten Sprodowski0Karina Morgenstern1Institut für Festkörperphysik, Leibniz Universität Hannover, Appelstr. 2, D-30167 Hannover, GermanyLehrstuhl für Physikalische Chemie I, Ruhr-Universität Bochum, Universitätsstr. 150, D-44801 Bochum, GermanyIf a material grows on another material with a largely different lattice constant, which of the two adapts for an energetically favorable growth? To tackle this question, we investigate the growth of Ag on Cu(111) by variable temperature scanning tunneling microscopy. The structures grown between 120 and 170 K are remarkably different from those grown between 200 and 340 K. The low-temperature structure is rectangular-like and consists of stacked rods, 7 to 8 Ag atoms long, which form a superstructure without long-range order. This structure covers the whole surface prior to nucleation of further layers. The high-temperature structure is hexagonal and consists of misfit dislocations forming 8 × 8 to 10 × 10 superstructures. For this structure, second layer nucleation sets in far before the closure of the first monolayer. While both structures are driven by the large lattice misfit between the two materials, the growing Ag layer adapts to the Cu surface at low temperature, while the Cu surface adapts to the growing Ag layer at higher temperature.https://www.mdpi.com/2079-4991/9/5/710heteroepitaxial growthlattice mismatchscanning tunneling microscopy |
| spellingShingle | Carsten Sprodowski Karina Morgenstern Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth Nanomaterials heteroepitaxial growth lattice mismatch scanning tunneling microscopy |
| title | Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth |
| title_full | Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth |
| title_fullStr | Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth |
| title_full_unstemmed | Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth |
| title_short | Temperature-Dependent Accommodation of Two Lattices of Largely Different Size during Growth |
| title_sort | temperature dependent accommodation of two lattices of largely different size during growth |
| topic | heteroepitaxial growth lattice mismatch scanning tunneling microscopy |
| url | https://www.mdpi.com/2079-4991/9/5/710 |
| work_keys_str_mv | AT carstensprodowski temperaturedependentaccommodationoftwolatticesoflargelydifferentsizeduringgrowth AT karinamorgenstern temperaturedependentaccommodationoftwolatticesoflargelydifferentsizeduringgrowth |