NDLI: Magnetic anisotropy induced in NiCo granular nanostructures by ZnO nanorods deposited on a polymer substrate

Content Provider	Royal Society of Chemistry (RSC)
Author	Chen, Yi Guo, Xiaoxuan Zhang, Jin Tse, Wai Hei Sham, Tsun-Kong
Copyright Year	2014
Abstract	Hetero-nanostructures made of NiCo and ZnO nanostructures have been deposited on a polymer substrate through a two-step method. First a ZnO nanorod array was grown on polydimethylsiloxane (PDMS) substrate by a hydrothermal method. NiCo granular nanostructures were then deposited on the ZnO nanorod array through an electroless polyol process with precursors of Ni complex and Co complex in a mole ratio of 50 : 50. The effect of deposition time (t) on the structure and properties of the hetero-nanostructures has been studied. Ni-rich nanostructures are observed when t < 30 min. With t increasing, the atomic ratio (at.%) of Ni to Co approaches 50 : 50. In addition, a magnetic field (10 kOe) was applied on the hetero-nanostructures, which was parallel and perpendicular to the ZnO nanorods. The magnetization (Ms) of the NiCo nanostructures deposited on ZnO nanorods when t = 60 min is measured at 93.4 emu g−1. The results of magnetic measurements and X-ray absorption near edge structure spectroscopy (XANES) suggest that the slightly lower magnetizations of the hetero-nanostructures may be caused by the oxidation of Co and Ni on the surface of the granular films. The values of squareness ratio (Mr/Ms) of the hetero-nanostructures with t are far below 0.5. Moreover, the coercivity (Hc) value of the hetero-nanostructures measured in the direction perpendicular to the ZnO nanorods is higher than that in the parallel direction. Therefore, the deposited NiCo granular nanostructures are perpendicular to the plane of the PDMS substrate, and show perpendicular magnetic anisotropy. These results clearly demonstrate that the rod-shaped non-magnetic nanomaterials can significantly affect the magnetic anisotropy of the hetero-nanostructures.
Starting Page	47987
Ending Page	47991
Page Count	5
File Format	HTM / HTML PDF
ISSN	20462069
Volume Number	4
Issue Number	89
Journal	RSC Advances
DOI	10.1039/c4ra07210c
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Spectroscopy NiCo X-ray absorption near edge structure Nevus Polymer Nanomaterials Hydrothermal circulation Ni to Co Magnetic anisotropy Bacillus Polyol X-ray absorption spectroscopy Polydimethylsiloxane Magnetic field
Content Type	Text
Resource Type	Article
Subject	Chemistry Chemical Engineering

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

X-ray Photoemission Spectroscopy Study of Uniaxial Magnetic Anisotropy Induced in a Ni Layer Deposited on a $LiNbO_{3}$ Substrate

Mössbauer, X-ray near edge and X-ray diffraction studies on Cu-Ni ferrites

Microscale investigation of Ni and Cd in co-processed cement products using X-ray absorption near edge structure spectroscopy

Ag₂Cu₃Cr₂O₈(OH)₄: a new bidimensional silver–copper mixed-oxyhydroxide with in-plane ferromagnetic coupling

Fabrication of light emitting diode with ZnO nanorods on polymer coated silicon substrate

Oxygen reduction reaction at La_xCa_1−xMnO₃ nanostructures: interplay between A-site segregation and B-site valency

X-ray absorption spectroscopy and energy storage of Ni-doped cobalt nitride, (Ni_0.33Co_0.67)N, prepared by a simple synthesis route

Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films

X-ray magnetic circular dichroism: Orbital and spin moments of iron single-crystal thin film deposited on MgO substrate

Magnetic anisotropy induced in NiCo granular nanostructures by ZnO nanorods deposited on a polymer substrate

Similar Documents

X-ray Photoemission Spectroscopy Study of Uniaxial Magnetic Anisotropy Induced in a Ni Layer Deposited on a $LiNbO_{3}$ Substrate

Mössbauer, X-ray near edge and X-ray diffraction studies on Cu-Ni ferrites

Microscale investigation of Ni and Cd in co-processed cement products using X-ray absorption near edge structure spectroscopy

Ag2Cu3Cr2O8(OH)4: a new bidimensional silver–copper mixed-oxyhydroxide with in-plane ferromagnetic coupling

Fabrication of light emitting diode with ZnO nanorods on polymer coated silicon substrate

Oxygen reduction reaction at LaxCa1−xMnO3 nanostructures: interplay between A-site segregation and B-site valency

X-ray absorption spectroscopy and energy storage of Ni-doped cobalt nitride, (Ni0.33Co0.67)N, prepared by a simple synthesis route

Antiferromagnetic coupling of TbPc2 molecules to ultrathin Ni and Co films

X-ray magnetic circular dichroism: Orbital and spin moments of iron single-crystal thin film deposited on MgO substrate

Magnetic anisotropy induced in NiCo granular nanostructures by ZnO nanorods deposited on a polymer substrate

Ag₂Cu₃Cr₂O₈(OH)₄: a new bidimensional silver–copper mixed-oxyhydroxide with in-plane ferromagnetic coupling

Oxygen reduction reaction at La_xCa_1−xMnO₃ nanostructures: interplay between A-site segregation and B-site valency

X-ray absorption spectroscopy and energy storage of Ni-doped cobalt nitride, (Ni_0.33Co_0.67)N, prepared by a simple synthesis route