Preparing spin-polarized scanning tunneling microscope probes on capped carbon nanotubes by Fe doping: A first-principles study

被引：7
|
作者：
Zou, Xiaolong [1 ]
Zhou, Gang [1 ]
Li, Jia [1 ]
Yan, Binghai [1 ]
Wu, Jian [1 ]
Gu, Bing-Lin [1 ]
Duan, Wenhui [1 ]
机构：
[1] Tsinghua Univ, Dept Phys, Beijing 100084, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2009年 / 94卷 / 19期
基金：
中国国家自然科学基金;
关键词：
adsorption; carbon nanotubes; density functional theory; doping; iron; magnetic moments; nanofabrication; scanning tunnelling microscopy; spin polarised transport; FIELD-EMISSION; SPECTROSCOPY; MOLECULES; ENERGY;
D O I：
10.1063/1.3134483
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Our first-principles calculations indicate the possibility of preparing spin-polarized scanning tunneling microscopy (SP-STM) probes from Fe-doped capped carbon nanotubes (CNTs). The structural stability, magnetic moment, and electronic property of hybrid systems are found to depend on the Fe adsorption site, which is attributed to the hybridization between Fe 3d and C 2p orbitals. The CNTs with Fe atoms adsorbed at the tip-top are demonstrated to be promising candidates for the SP-STM probe, with a high spin polarization leading to a completely spin-polarized current at lower voltages. In contrast, the CNTs encapsulating Fe atom are basically nonmagnetic, and thus useless for the SP-STM probe application in nature.
引用
收藏
页数：3
相关论文
共 50 条
  • [41] A low-temperature spin-polarized scanning tunneling microscope operating in a fully rotatable magnetic field
    Meckler, S.
    Gyamfi, M.
    Pietzsch, O.
    Wiesendanger, R.
    REVIEW OF SCIENTIFIC INSTRUMENTS, 2009, 80 (02):
  • [42] Growth and magnetism of Fe on Cr(001): a spin-polarized scanning tunneling spectroscopy and magnetic force microscopy study
    Bode, M
    Ravlic, R
    Kleiber, M
    Wiesendanger, R
    APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, 2005, 80 (05): : 907 - 912
  • [43] Growth and magnetism of Fe on Cr(001): a spin-polarized scanning tunneling spectroscopy and magnetic force microscopy study
    M. Bode
    R. Ravlić
    M. Kleiber
    R. Wiesendanger
    Applied Physics A, 2005, 80 : 907 - 912
  • [44] Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
    Kavai, Mariam
    Giannakis, Ioannis
    Leshen, Justin
    Friedman, Joel
    Zajdel, Pawel
    Aynajian, Pegor
    JOVE-JOURNAL OF VISUALIZED EXPERIMENTS, 2019, (145):
  • [45] Joule Heating and Spin-Transfer Torque Investigated on the Atomic Scale Using a Spin-Polarized Scanning Tunneling Microscope
    Krause, S.
    Herzog, G.
    Schlenhoff, A.
    Sonntag, A.
    Wiesendanger, R.
    PHYSICAL REVIEW LETTERS, 2011, 107 (18)
  • [46] Superparamagnetic response of Fe-coated W tips in spin-polarized scanning tunneling microscopy
    Phark, Soo-hyon
    Fischer, Jeison A.
    Corbetta, Marco
    Sander, Dirk
    Kirschner, Juergen
    APPLIED PHYSICS LETTERS, 2013, 103 (03)
  • [47] Preparation of magnetic tips for spin-polarized scanning tunneling microscopy on Fe1+yTe
    Singh, Udai Raj
    Aluru, Ramakrishna
    Liu, Yong
    Lin, Chengtian
    Wahl, Peter
    PHYSICAL REVIEW B, 2015, 91 (16)
  • [48] First-principles study of spin-polarized electronic band structures in ferromagnetic Zn1-xTMxS (TM = Fe, Co and Ni)
    Saeed, Y.
    Nazir, S.
    Reshak, Ali H.
    Shaukat, A.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2010, 508 (02) : 245 - 250
  • [49] Spin-polarized antiferromagnetic CaCoSO single crystal: First principles study
    Reshak, A. H.
    JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 711 : 229 - 234
  • [50] Doping domains in graphene on gold substrates: First-principles and scanning tunneling spectroscopy studies
    Slawinska, J.
    Wlasny, I.
    Dabrowski, P.
    Klusek, Z.
    Zasada, I.
    PHYSICAL REVIEW B, 2012, 85 (23)
12345