Scanning Tunneling Microscopy Study of Ordered C60 Submonolayer Films on Co/Au(111)

被引：11

作者：

Kollamana, Jobynson ^{[1
,2
]}

Wei, Zheng ^{[1
,2
,3
]}

Laux, Martin ^{[1
,2
]}

Stoeckl, Johannes ^{[1
,2
]}

Stadtmueller, Benjamin ^{[1
,2
]}

Cinchetti, Mirko ^{[1
,2
]}

Aeschlimann, Martin ^{[1
,2
]}

机构：

[1] Univ Kaiserslautern, Dept Phys, Erwin Schrodinger Str 46, D-67663 Kaiserslautern, Germany

[2] Univ Kaiserslautern, Res Ctr OPTIMAS, Erwin Schrodinger Str 46, D-67663 Kaiserslautern, Germany

[3] Chongqing Univ, Coll Mat Sci & Engn, Chongqing 400044, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2016年 / 120卷 / 14期

关键词：

SPIN INJECTION; HYBRID INTERFACE; SURFACE; TEMPERATURE; SPINTERFACE; ORIENTATION; MOLECULES; AU(111); GROWTH; STATES;

D O I：

10.1021/acs.jpcc.5b12365

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We demonstrate the successful preparation of ordered C-60 films on Co/Au(111) by scanning tunneling microscopy (STM). In particular, we show that the C-60 molecules arrange in a close-packed hexagonal pattern after postdeposition annealing at T = 350 degrees C. From STM measurements with intramolecular resolution we find domains with different orientational ordering, that is ultimately a result of the lateral arrangement of the C-60 molecules on the Co surface. The local ordering of the various domains is also clearly reflected in the measured differential conductance spectra. In particular, we find an energetic shift of the LUMO + 1 due to the reconstruction of the cobalt substrate. Our study opens the way for the introduction of ordered "spinterfaces" in molecular spintronics.

引用

页码：7568 / 7574

页数：7

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