skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: The magnetic ordering in high magnetoresistance Mn-doped ZnO thin films

Journal Article · · AIP Advances
DOI:https://doi.org/10.1063/1.4944954· OSTI ID:1251395
 [1];  [1];  [2];  [1]
  1. King Abdullah Univ. of Science and Technology (KAUST), Thuwal (Saudi Arabia)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)

Here, we studied the nature of magnetic ordering in Mn-doped ZnO thin films that exhibited ferromagnetism at 300 K and superparamagnetism at 5 K. We directly inter-related the magnetisation and magnetoresistance by invoking the polaronpercolation theory and variable range of hopping conduction below the metal-to-insulator transition. By obtaining a qualitative agreement between these two models, we attribute the ferromagnetism to the s-d exchange-induced spin splitting that was indicated by large positive magnetoresistance (~40 %). Low temperature superparamagnetism was attributed to the localization of carriers and non-interacting polaron clusters. This analysis can assist in understanding the presence or absence of ferromagnetism in doped/un-doped ZnO.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
Grant/Contract Number:
AC02-76SF00515
OSTI ID:
1251395
Journal Information:
AIP Advances, Vol. 6, Issue 3; ISSN 2158-3226
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (51)

Spintronics: A Spin-Based Electronics Vision for the Future journal November 2001
Zener Model Description of Ferromagnetism in Zinc-Blende Magnetic Semiconductors journal February 2000
Magnetic properties of Mn-doped ZnO journal February 2001
High-temperature ferromagnetism by means of oriented nanocolumns: Co clustering in (Zn,Co)O journal November 2009
Anisotropic magnetism and spin-dependent transport in Co nanoparticle embedded ZnO thin films journal July 2013
Ferromagnetism and magnetoresistance of nanocomposite ZnO-Co thin films journal October 2015
No ferromagnetism in Mn doped ZnO semiconductors journal November 2005
Absence of ferromagnetism in Mn- and Co-doped ZnO journal January 2005
Ferromagnetic properties of Zn1−xMnxO epitaxial thin films journal June 2002
Ferromagnetism above room temperature in bulk and transparent thin films of Mn-doped ZnO journal September 2003
Reversible 300 K Ferromagnetic Ordering in a Diluted Magnetic Semiconductor journal December 2004
Study of ferromagnetism in Mn-doped ZnO whisker arrays journal April 2008
Strain dependent defect mediated ferromagnetism in Mn-doped and undoped ZnO thin films journal September 2010
Synthesis of Colloidal Mn 2+ :ZnO Quantum Dots and High- T C Ferromagnetic Nanocrystalline Thin Films journal August 2004
Experimental probing of the interplay between ferromagnetism and localization in (Ga, Mn)As journal November 2009
Oxygen vacancy controlled tunable magnetic and electrical transport properties of (Li, Ni)-codoped ZnO thin films journal June 2010
Limitations of measuring small magnetic signals of samples deposited on a diamagnetic substrate journal December 2008
Suppression of conductivity in Mn-doped ZnO thin films journal January 2009
X-ray Absorption and Emission Studies of Mn-doped ZnO Thin Films journal July 2009
X-ray absorption and magnetic circular dichroism characterizations of Mn doped ZnO journal October 2007
Regulation of Magnetic Behavior and Electronic Configuration in Mn-Doped ZnO Nanorods through Surface Modifications journal April 2012
Direct Kinetic Correlation of Carriers and Ferromagnetism in Co 2 + : ZnO journal July 2006
X-ray spectroscopic study of the charge state and local ordering of room-temperature ferromagnetic Mn-doped ZnO journal April 2007
Electronic structure of nanostructured ZnO from x-ray absorption and emission spectroscopy and the local density approximation journal November 2004
Electronic structure of ZnO nanorods studied by angle-dependent x-ray absorption spectroscopy and scanning photoelectron microscopy journal May 2004
Magnetization study of nanograined pure and Mn-doped ZnO films: Formation of a ferromagnetic grain-boundary foam journal May 2009
Ferromagnetic properties of the Mn-doped nanograined ZnO films journal October 2010
Modelling of electron and hole trapping in oxides journal November 2009
A magnetic polaron model for the enhanced Curie temperature of EuO 1− x journal March 2013
Defect-trapped electrons and ferromagnetic exchange in ZnO journal August 2011
Effects of Disorder on Ferromagnetism in Diluted Magnetic Semiconductors journal August 2001
Polaron Percolation in Diluted Magnetic Semiconductors journal May 2002
Magnetic and transport percolation in diluted magnetic semiconductors journal December 2003
3d x-ray-absorption lines and the 3 d 9 4 f n + 1 multiplets of the lanthanides journal October 1985
The role of carriers in spin current and magnetic coupling for ZnO:Co diluted magnetic oxides journal March 2010
Magnetoresistance in Mn Pyrochlore: Electrical Transport in a Low Carrier Density Ferromagnet journal August 1998
Super-Paramagnetic Blocking Phenomena and Room-Temperature Ferromagnetism in Wide Band-Gap Dilute Magnetic Semiconductor (Ga, Mn)N journal July 2007
Percolation ferromagnetism and spin waves in Ge:Mn thin films journal August 2009
Room-temperature ferromagnetism in Mn-implanted amorphous Ge journal April 2011
Electrical and optical properties of TiO 2 anatase thin films journal February 1994
Room temperature ferromagnetism in Cr-doped hydrogenated amorphous Si films journal June 2008
Conduction in non-crystalline materials: III. Localized states in a pseudogap and near extremities of conduction and valence bands journal April 1969
Interplay between Carrier Localization and Magnetism in Diluted Magnetic and Ferromagnetic Semiconductors journal March 2008
Metal-insulator transition in Co-doped ZnO : Magnetotransport properties journal May 2006
Intermediate phase at the metal-insulator boundary in a magnetically doped two-dimensional electron system journal July 2007
Spin-related magnetoresistance of n -type ZnO:Al and Zn 1 x Mn x O : Al thin films journal September 2005
Origin of ferromagnetism in Zn 1 x Co x O from magnetization and spin-dependent magnetoresistance measurements journal October 2007
Carrier-induced ferromagnetism in n-type ZnMnAlO and ZnCoAlO thin films at room temperature journal August 2006
Disordered electronic systems journal April 1985
Donor impurity band exchange in dilute ferromagnetic oxides journal January 2005
High temperature ferromagnetism and optical properties of Co doped ZnO nanoparticles journal October 2010

Cited By (2)

Study of structural, optical and magnetic properties of cobalt doped ZnO nanorods journal January 2017
Defect induced ferromagnetic ordering in epitaxial Zn 0.95 Mn 0.05 O films on sapphire (0 0 0 1) journal September 2019

Similar Records

The magnetic ordering in high magnetoresistance Mn-doped ZnO thin films
Journal Article · Tue Mar 15 00:00:00 EDT 2016 · AIP Advances · OSTI ID:1251395

Magnetoresistance in Mn ion-implanted GaAs:Zn nanowires
Journal Article · Mon Apr 14 00:00:00 EDT 2014 · Applied Physics Letters · OSTI ID:1251395

Magnetoresistance manipulation and sign reversal in Mn-doped ZnO nanowires
Journal Article · Fri Oct 14 00:00:00 EDT 2016 · Scientific Reports · OSTI ID:1251395