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DOI number:10.1002/pssb.201800173

Affiliation of Author(s):物理学院

Journal:physica status solidi (b) - basic solid state physics

Place of Publication:国外学术期刊

Abstract:The growth and crystalline structure of ultrathin Mn films are studied in terms of thickness and temperature by scanning tunneling microscopy (STM) as well as medium- and low-energy electron diffraction. We show that the Mn films deposited at room temperature exhibit a thickness-dependent growth behavior with a layer-by-layer growth mode up to 5.3 monolayers. Two transitions in the growth mode can be observed in this range. Atomically resolved STM images of a submonolayer of Mn on Ni(111) reveal a lateral lattice distortion which becomes less significant after the islands form a wetting layer at room temperature. The low-temperature-deposited wetting layer shows a metastable lattice distortion which vanishes after annealing to room or higher temperatures. This phenomenon may be attributed to a temperature-dependent metastable arrangement of the Mn adlayer as well as the distinct interaction strength between Mn–Mn and Mn–Ni atoms. Low-temperature-grown thick Mn films exhibit a Stranski–Krastanov growth mode with a stable r3xr3 R30° reconstruction, which remains stable up to room temperature.

Indexed by:Journal paper

Document Code:5b75928c66e36bee016735ca94794399

Document Type:J

Volume:255

Issue:9

Page Number:255/9/1800173

ISSN No.:0370-1972

Translation or Not:no

Date of Publication:2018-08-06

Included Journals:SCI

First Author:Jiaming Song

Correspondence Author:Wolfgang Kuch