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Alotaibi S, Samba J, Pokharel S, Lan Y, Uradu K, Afolabi A, Unlu I, Basnet G, Aslan K, Flanders BN, Lisfi A, Ozturk B. Individually grown cobalt nanowires as magnetic force microscopy probes. APPLIED PHYSICS LETTERS 2018; 112:092401. [PMID: 29531389 PMCID: PMC5826737 DOI: 10.1063/1.4997310] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2017] [Accepted: 02/08/2018] [Indexed: 06/12/2023]
Abstract
AC electric fields were utilized in the growth of individual high-aspect ratio cobalt nanowires from simple salt solutions using the Directed Electrochemical Nanowire Assembly method. Nanowire diameters were tuned from the submicron scale to 40 nm by adjusting the AC voltage frequency and the growth solution concentration. The structural properties of the nanowires, including shape and crystallinity, were identified using electron microscopy. Hysteresis loops obtained along different directions of an individual nanowire using vibrating sample magnetometry showed that the magnetocrystalline anisotropy energy has the same order of magnitude as the shape anisotropy energy. Additionally, the saturation magnetization of an individual cobalt nanowire was estimated to be close to the bulk single crystal value. A small cobalt nanowire segment was grown from a conductive atomic force microscope cantilever tip that was utilized in magnetic force microscopy (MFM) imaging. The fabricated MFM tip provided moderate quality magnetic images of an iron-cobalt thin-film sample.
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Affiliation(s)
- Shuaa Alotaibi
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Joshua Samba
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Sabin Pokharel
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Yucheng Lan
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Kelechi Uradu
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Ayodeji Afolabi
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Ilyas Unlu
- Department of Chemistry, Johns Hopkins University, 3400 N. Charles Street, Baltimore, Maryland 21218, USA
| | - Gobind Basnet
- Department of Physics, Kansas State University, 1228 N. 17th St., Manhattan, Kansas 66506, USA
| | - Kadir Aslan
- Department of Chemistry, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 2121, USA
| | - Bret N. Flanders
- Department of Physics, Kansas State University, 1228 N. 17th St., Manhattan, Kansas 66506, USA
| | - Abdellah Lisfi
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
| | - Birol Ozturk
- Department of Physics, Morgan State University, 1700 East Cold Spring Lane, Baltimore, Maryland 21215, USA
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Gilmore J, Islam M, Duncan J, Natu R, Martinez-Duarte R. Assessing the importance of the root mean square (RMS) value of different waveforms to determine the strength of a dielectrophoresis trapping force. Electrophoresis 2017; 38:2561-2564. [DOI: 10.1002/elps.201600551] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Revised: 04/03/2017] [Accepted: 04/13/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Jordon Gilmore
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering; Clemson University; Clemson SC, USA
| | - Monsur Islam
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering; Clemson University; Clemson SC, USA
| | - Josie Duncan
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering; Clemson University; Clemson SC, USA
| | - Rucha Natu
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering; Clemson University; Clemson SC, USA
| | - Rodrigo Martinez-Duarte
- Multiscale Manufacturing Laboratory, Department of Mechanical Engineering; Clemson University; Clemson SC, USA
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Schmädicke C, Poetschke M, Renner LD, Baraban L, Bobeth M, Cuniberti G. Copper nanowire synthesis by directed electrochemical nanowire assembly. RSC Adv 2014. [DOI: 10.1039/c4ra04853a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
The growth of high aspect ratio copper nanowires with lengths of up to several micrometers and diameters of about 100 nm via directed electrochemical nanowire assembly (DENA) is presented.
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Affiliation(s)
- C. Schmädicke
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
| | - M. Poetschke
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
| | - L. D. Renner
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
- Department of Biochemistry
- University of Wisconsin–Madison
- Madison, U.S.A
| | - L. Baraban
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
| | - M. Bobeth
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
| | - G. Cuniberti
- Institute for Materials Science and Max Bergmann Center of Biomaterials
- 01062 Dresden, Germany
- Center for Advancing Electronics Dresden
- 01062 Dresden, Germany
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