Diverse growth of Mn, In and Sn islands on thallium-passivated Si(111) surface

Matvija, Peter; Sobotík, P.; Ošt’ádal, Ivan; Kocán, Pavel

doi:10.1016/j.apsusc.2015.01.067

Cited by 8 publications

(5 citation statements)

References 37 publications

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“…There are two possible origins for this weak interaction. First, Mn atoms adsorbed on an atomic layered Tl are reported to form clusters around the edge of the Tl terrace, 59 meaning that the interaction between Mn and Tl is weak and thus the formation of the Mn−Tl bond is unlikely. Second, since the Tl atoms on the Se layer of TlBiSe 2 are positively charged 31 and the Mn of the MnPc molecule is also positively charged, there would be a repulsion force that put the center atom of MnPc away from the TlBiSe 2 surface.…”

Section: Thementioning

confidence: 99%

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Itaya,

Higuchi,

Nishioka

et al. 2024

J. Phys. Chem. C

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A proper understanding of the physical properties at the interface between a nonmagnetic topological insulator and a magnetic film is an indispensable input to develop high-functional spintronics devices using topological insulators. In this paper, we show the physical properties of manganese(II) phthalocyanine (MnPc)-adsorbed Bi 2 Se 3 and TlBiSe 2 , two topological insulators with similar electronic states but different surface compositions. The adsorption of MnPc induces significant electron doping on Bi 2 Se 3 , while only a small hole doping was induced on TlBiSe 2 . This difference in doping is due to the different molecular orientations on the two topological insulators: the flat-lying configuration on Bi 2 Se 3 that leads to a large overlap between the d-orbital of Mn and orbitals of surface Se, and the upright configuration on TlBiSe 2 that results from the presence of Tl atoms on the surface and leads to a negligible orbital overlap. These results pave the way for applications in spintronics devices combining magnetic organic molecules and topological insulators.

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Section: Thementioning

confidence: 99%

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Itaya,

Higuchi,

Nishioka

et al. 2024

J. Phys. Chem. C

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“…As a substrate in this study we use the Si(111)-Tl 1 × 1 surface, which is pseudomorphic, − atomically smooth, , and nonreactive for adsorbates . The pseudomorphicity allows the easiest commensuration of the surface periodicity with that of the molecular layer compared to other reconstructed silicon surfaces.…”

Section: Introductionmentioning

confidence: 99%

Stability of Partially Fluorinated Phthalocyanine Monolayers: Influence of Hydrogen Bonding Revisited

et al. 2019

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Hydrogen-like bonding between halogen and hydrogen atoms is widely accepted as the driving force in self-ordering process of various molecular layers. A proper understanding of how the molecular periphery influences the self-ordering is crucial for formation of structurally and electronically well-defined interfaces. To probe the stability of ordered molecular layers of phthalocyanines with various fluorination on the Si(111)-Tl 1 × 1 surface we introduce utilization of a strong electric field of the tip of the scanning tunneling microscope. Ab-initio calculations on extended lattices are used to distinguish molecule–substrate and intermolecular interactions. A systematic comparison of combinations of phthalocyanines with various fluorination provides an understanding of how the molecular periphery influences the intermolecular interaction. We demonstrate that the straightforward explanation of the process of self-ordering by hydrogen-like bonding is not acceptable in the studied case.

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“…The morphology of such thin films can influence the magnetic properties significantly . The 3 d transition metal Mn has drawn much attention in ultrathin magnetic film research in the last decades, not only because of its large atomic magnetic moment resulting from the half‐filled d orbital, but also due to the diversity of phases when epitaxially grown on different substrates . The crystalline structure, in some way, determines the properties of thin films.…”

Section: Introductionmentioning

confidence: 99%

The Growth and Crystalline Structure of Ultrathin Mn Films on Ni(111)

Song

Kuch

2018

Physica Status Solidi (b)

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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 (3×3)R 30° reconstruction, which remains stable up to room temperature.

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Diverse growth of Mn, In and Sn islands on thallium-passivated Si(111) surface

Cited by 8 publications

References 37 publications

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Substrate-Dependent Physical Properties at the Interface of Manganese(II) Phthalocyanine and Topological Insulators

Stability of Partially Fluorinated Phthalocyanine Monolayers: Influence of Hydrogen Bonding Revisited

The Growth and Crystalline Structure of Ultrathin Mn Films on Ni(111)

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