Fabrication of nanodevice using individual single crystalline nanowire and their physical property measurements = 단결정 단일 나노선을 이용한 나노소자 제작과 특성에 관한 연구

Cited 0 time in webofscience Cited 0 time in scopus
  • Hit : 471
  • Download : 0
Nanodevices using individual nanowire are fabricated by standardl e-beam lithography, which includes plasma ashing, evaporation of metal electrodes, and rapid thermal annealing. With as-product nanodevice, we obtained the resistance under not only various temperatures but also the external magnetic field. The nanowires used in the nanodevices for the measurement of physical properties are as follows; CoSi, $Fe_{1-x}Co_xSi$, InN, $Fe_5Si_3, Co_2Si$, and $V_5Si_3$. As a result, CoSi nanowire shows the significant negative magnetoresistance (MR) effect, which is consistent with reduction of scattering by spins associated with localized electrons. We obtain the specific properties of $Fe_{1-x}Co_xSi$ nanowire under the influence with magnetic field, low temperature, and direction between nanowire and applied magnetic field; positive MR, transition point, and anisotropy MR (AMR). Temperature-dependent resistance of InN nanowire is revealed how electrons on the surface of InN nanowire can be transferred at different temperature regions. Also, we calculate the resistivity of $Fe_5Si_3, Co_2Si$, and $V5Si_3$ nanowire using measured resistance and parameter of nanodevices and obtain that $Fe_5Si_3$ nanowire shows positive MR at low temperature, $Co_2Si$ nanowire has a little negative MR below Curie temperature, and current flows without breakdown point at high voltage in $V_5Si_3$ nanowire.
Advisors
Kim, Bong-sooresearcher김봉수researcher
Description
한국과학기술원 : 나노과학기술학제전공,
Publisher
한국과학기술원
Issue Date
2008
Identifier
296118/325007  / 020063397
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 나노과학기술학제전공, 2008.2, [ ix, 89 p. ]

Keywords

nanowire; nanodevice; lithography; magnetism; electricity; 나노선; 나노소자; 식각 기술; 자기성; 전기성

URI
http://hdl.handle.net/10203/49610
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=296118&flag=dissertation
Appears in Collection
NT-Theses_Master(석사논문)
Files in This Item
There are no files associated with this item.

qr_code

  • mendeley

    citeulike


rss_1.0 rss_2.0 atom_1.0