A low-temperature spin-polarized scanning tunneling microscope operating in a fully rotatable magnetic field

被引：22

作者：

Meckler, S. ^{[1
]}

Gyamfi, M. ^{[1
]}

Pietzsch, O. ^{[1
]}

Wiesendanger, R. ^{[1
]}

机构：

[1] Univ Hamburg, Inst Appl Phys & Microstruct, Adv Res Ctr Hamburg, D-20355 Hamburg, Germany

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2009年 / 80卷 / 02期

关键词：

electron spin polarisation; ferromagnetic materials; gadolinium; iron; magnetic structure; magnetisation; monolayers; nanostructured materials; ruthenium; scanning tunnelling microscopy; scanning tunnelling spectroscopy; self-assembly; tungsten; ULTRAHIGH-VACUUM; FERROMAGNETS; SURFACES; W(110);

D O I：

10.1063/1.3086428

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A new scanning tunneling microscope for spin-polarized experiments has been developed. The microscope is operated at 4.7 K in a superconducting triple axis vector magnet providing the possibility for measurements depending on the direction of the magnetic field. In single axis mode the maximum field is 5 T perpendicular to the sample plane and 1.3 T in the sample plane, respectively. In cooperative mode fields are limited to 3.5 T perpendicular and 1 T in plane. The microscope is operated in an ultrahigh vacuum system providing optimized conditions for the self-assembled growth of magnetic structures at the atomic scale. The available temperature during growth ranges from 10 up to 1100 K. The performance of the new instrument is illustrated by spin-polarized measurements on 1.6 atomic layers Fe/W(110). It is demonstrated that the magnetization direction of ferromagnetic Fe and Gd tips can be adjusted using the external magnetic field. Atomic resolution is demonstrated by imaging an Fe monolayer on Ru(0001).

引用

页数：8

共 27 条

[21] Formation mechanism of low-dimensional superstructure of adenine molecules and its control by chemical modification: a low-temperature scanning tunneling microscopy study [J].

Furukawa, M ;

Tanaka, H ;

Kawai, T .

SURFACE SCIENCE, 2000, 445 (01) :1-10

[22] Dielectric response to the low-temperature magnetic defect structure and spin state transition in polycrystalline LaCoO3 [J].

Schmidt, Rainer ;

Wu, J. ;

Leighton, C. ;

Terry, I. .

PHYSICAL REVIEW B, 2009, 79 (12)

[23] Note: Unique characterization possibilities in the ultra high vacuum scanning transmission x-ray microscope (UHV-STXM) "MAXYMUS" using a rotatable permanent magnetic field up to 0.22 T [J].

Nolle, D. ;

Weigand, M. ;

Audehm, P. ;

Goering, E. ;

Wiesemann, U. ;

Wolter, C. ;

Nolle, E. ;

Schuetz, G. .

REVIEW OF SCIENTIFIC INSTRUMENTS, 2012, 83 (04)

[24] Magnetic behavior of nanocrystals of the spin-chain system Ca3Co2O6: Absence of multiple steps in the low-temperature isothermal magnetization [J].

Mohapatra, Niharika ;

Iyer, Kartik K. ;

Das, Sitikantha D. ;

Chalke, B. A. ;

Purandare, S. C. ;

Sampathkumaran, E. V. .

PHYSICAL REVIEW B, 2009, 79 (14)

[25] Low-temperature scanning tunneling microscopy/ultraviolet photoelectron spectroscopy investigation of two-dimensional crystallization of C60: pentacence binary system on Ag(111) [J].

Zhang, Jia Lin ;

Zhang, Kelvin Hong Liang ;

Zhong, Jian Qiang ;

Niu, Tian Chao ;

Chen, Wei .

JOURNAL OF APPLIED PHYSICS, 2012, 111 (03)

[26] Effect of high magnetic field on carbide precipitation in W6Mo5Cr4V3 high-speed steel during low-temperature tempering [J].

Wu, Yan ;

Li, Hui-Hui ;

Zhang, Zhi-Wei ;

Tong, Lu ;

Zhao, Xiang .

INTERNATIONAL JOURNAL OF MATERIALS RESEARCH, 2016, 107 (04) :356-361

[27] First experimental evidence of non-collinear spin structure in CaCu2.3Ti3.3Fe1.4O12 quadruple perovskite through low-temperature, in-field 57Fe Mossbauer spectroscopy [J].

Pansara, Pooja R. ;

Raval, Pooja Y. ;

Pandit, Rabia ;

Nehra, Jagdish ;

Dolia, Satya N. ;

Modi, Kunal B. .

CERAMICS INTERNATIONAL, 2020, 46 (08) :10016-10022

← 1 2 3 →