Insights into the magnetic dead layer in La0.7Sr0.3MnO3 thin films from temperature, magnetic field and thickness dependence of their magnetization
Abstract
Experimental investigations of the magnetic dead layer in 7.6 nm thick film of La0.7Sr0.3MnO3 (LSMO) are reported. The dc magnetization (M) measurements for a sample cooled to T = 5 K in applied field H = 0 reveal the presence of negative remanent magnetization (NRM) in the M vs. H (magnetic field) measurements as well as in the M vs. T measurements in H = 50 Oe and 100 Oe. The M vs. T data in ZFC (zero-field-cooled) and FC (field-cooled) protocols are used to determine the blocking temperature TB in different H. Isothermal hysteresis loops at different T are used to determine the temperature dependence of saturation magnetization (MS), remanence (MR) and coercivity HC. The MS vs. T data are fit to the Bloch law, MS (T) = M0 (1 – BT3/2), showing a good fit for T < 100 K and yielding the nearest-neighbor exchange constant J/kB ≅ 18 K. The variations of TB vs. H and HC vs. T are well described by the model often used for randomly oriented magnetic nanoparticles with magnetic domain diameter ≈ 9 nm present in the dead-layer of thickness d =1.4 nm. Finally, the data available from literature on the thicknessmore »
- Authors:
-
- West Virginia Univ., Morgantown, WV (United States)
- Publication Date:
- Research Org.:
- West Virginia Univ., Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1499105
- Alternate Identifier(s):
- OSTI ID: 1416470
- Grant/Contract Number:
- SC0016176
- Resource Type:
- Accepted Manuscript
- Journal Name:
- AIP Advances
- Additional Journal Information:
- Journal Volume: 8; Journal Issue: 5; Journal ID: ISSN 2158-3226
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Mottaghi, N., Seehra, M. S., Trappen, R., Kumari, S., Huang, Chih-Yeh, Yousefi, S., Cabrera, G. B., Romero, A. H., and Holcomb, M. B. Insights into the magnetic dead layer in La0.7Sr0.3MnO3 thin films from temperature, magnetic field and thickness dependence of their magnetization. United States: N. p., 2018.
Web. doi:10.1063/1.5005913.
Mottaghi, N., Seehra, M. S., Trappen, R., Kumari, S., Huang, Chih-Yeh, Yousefi, S., Cabrera, G. B., Romero, A. H., & Holcomb, M. B. Insights into the magnetic dead layer in La0.7Sr0.3MnO3 thin films from temperature, magnetic field and thickness dependence of their magnetization. United States. https://doi.org/10.1063/1.5005913
Mottaghi, N., Seehra, M. S., Trappen, R., Kumari, S., Huang, Chih-Yeh, Yousefi, S., Cabrera, G. B., Romero, A. H., and Holcomb, M. B. Wed .
"Insights into the magnetic dead layer in La0.7Sr0.3MnO3 thin films from temperature, magnetic field and thickness dependence of their magnetization". United States. https://doi.org/10.1063/1.5005913. https://www.osti.gov/servlets/purl/1499105.
@article{osti_1499105,
title = {Insights into the magnetic dead layer in La0.7Sr0.3MnO3 thin films from temperature, magnetic field and thickness dependence of their magnetization},
author = {Mottaghi, N. and Seehra, M. S. and Trappen, R. and Kumari, S. and Huang, Chih-Yeh and Yousefi, S. and Cabrera, G. B. and Romero, A. H. and Holcomb, M. B.},
abstractNote = {Experimental investigations of the magnetic dead layer in 7.6 nm thick film of La0.7Sr0.3MnO3 (LSMO) are reported. The dc magnetization (M) measurements for a sample cooled to T = 5 K in applied field H = 0 reveal the presence of negative remanent magnetization (NRM) in the M vs. H (magnetic field) measurements as well as in the M vs. T measurements in H = 50 Oe and 100 Oe. The M vs. T data in ZFC (zero-field-cooled) and FC (field-cooled) protocols are used to determine the blocking temperature TB in different H. Isothermal hysteresis loops at different T are used to determine the temperature dependence of saturation magnetization (MS), remanence (MR) and coercivity HC. The MS vs. T data are fit to the Bloch law, MS (T) = M0 (1 – BT3/2), showing a good fit for T < 100 K and yielding the nearest-neighbor exchange constant J/kB ≅ 18 K. The variations of TB vs. H and HC vs. T are well described by the model often used for randomly oriented magnetic nanoparticles with magnetic domain diameter ≈ 9 nm present in the dead-layer of thickness d =1.4 nm. Finally, the data available from literature on the thickness (D) variation of Curie temperature (TC) and MS of LSMO films grown under 200, 150, and 0.38 mTorr pressures of O2 are analyzed in terms of the finite-size scaling, with MS vs. D data fit to MS (D) = MS(b)(1-d/D) yielding the dead layer thickness d = 1.1 nm, 1.4 nm and 2.4 nm respectively. Brief discussion on the significance of these results is presented.},
doi = {10.1063/1.5005913},
journal = {AIP Advances},
number = 5,
volume = 8,
place = {United States},
year = {Wed Jan 10 00:00:00 EST 2018},
month = {Wed Jan 10 00:00:00 EST 2018}
}
Figures / Tables:
Works referenced in this record:
Hidden Magnetic Configuration in Epitaxial Films
journal, December 2010
- Lee, J. -S.; Arena, D. A.; Yu, P.
- Physical Review Letters, Vol. 105, Issue 25
Magnetism in dodecanethiol-capped gold nanoparticles: Role of size and capping agent
journal, May 2007
- Dutta, P.; Pal, S.; Seehra, M. S.
- Applied Physics Letters, Vol. 90, Issue 21
Magnetic relaxation and correlating effective magnetic moment with particle size distribution in maghemite nanoparticles
journal, June 2015
- Pisane, K. L.; Despeaux, E. C.; Seehra, M. S.
- Journal of Magnetism and Magnetic Materials, Vol. 384
Ferromagnetism in Rare‐Earth Group VA and VIA Compounds with Th 3 P 4 Structure
journal, March 1964
- Holtzberg, F.; McGuire, T. R.; Methfessel, S.
- Journal of Applied Physics, Vol. 35, Issue 3
Finite-size and surface effects in maghemite nanoparticles: Monte Carlo simulations
journal, April 2001
- Iglesias, Òscar; Labarta, Amílcar
- Physical Review B, Vol. 63, Issue 18
Superparamagnetism and magnetic properties of Ni nanoparticles embedded in
journal, September 2002
- Fonseca, F. C.; Goya, G. F.; Jardim, R. F.
- Physical Review B, Vol. 66, Issue 10
Oxides, Oxides, and More Oxides: High-κ Oxides, Ferroelectrics, Ferromagnetics, and Multiferroics
journal, November 2009
- Izyumskaya, N.; Alivov, Ya.; Morkoç, H.
- Critical Reviews in Solid State and Materials Sciences, Vol. 34, Issue 3-4
Nickel-silica nanocomposite: Variation of the blocking temperature with magnetic field and measuring frequency
journal, April 2008
- Singh, V.; Seehra, M. S.; Bonevich, J.
- Journal of Applied Physics, Vol. 103, Issue 7
Thickness dependence of dynamic and static magnetic properties of pulsed laser deposited La0.7Sr0.3MnO3 films on SrTiO3(001)
journal, November 2014
- Monsen, Åsmund; Boschker, Jos E.; Macià, Ferran
- Journal of Magnetism and Magnetic Materials, Vol. 369
Room temperature multiferroic effects in superlattice nanocapacitors
journal, December 2010
- Dussan, S.; Kumar, A.; Scott, J. F.
- Applied Physics Letters, Vol. 97, Issue 25
Impedance spectroscopy analysis of Ba 0.7 Sr 03 TiO 3 /La 0.7 Sr 0.3 MnO 3 heterostructure
journal, February 2011
- Martínez, R.; Kumar, A.; Palai, R.
- Journal of Physics D: Applied Physics, Vol. 44, Issue 10
Tuning the dead-layer behavior of La 0.67 Sr 0.33 MnO 3 /SrTiO 3 via interfacial engineering
journal, February 2014
- Peng, R.; Xu, H. C.; Xia, M.
- Applied Physics Letters, Vol. 104, Issue 8
Reversible Resistive Switching and Multilevel Recording in La 0.7 Sr 0.3 MnO 3 Thin Films for Low Cost Nonvolatile Memories
journal, October 2010
- Moreno, César; Munuera, Carmen; Valencia, Sergio
- Nano Letters, Vol. 10, Issue 10
Size induced variations in structural and magnetic properties of double exchange La0.8Sr0.2MnO3−δ nano-ferromagnet
journal, July 2004
- Roy, Sujoy; Dubenko, Igor; Edorh, Dossah D.
- Journal of Applied Physics, Vol. 96, Issue 2
Size-dependent shifts of the Néel temperature and optical band-gap in NiO nanoparticles
journal, December 2013
- Thota, Subhash; Shim, J. H.; Seehra, M. S.
- Journal of Applied Physics, Vol. 114, Issue 21
Uniaxial Magnetic Anisotropy in La0.7Sr0.3MnO3 Thin Films Induced by Multiferroic BiFeO3 with Striped Ferroelectric Domains
journal, August 2010
- You, Lu; Lu, Chengliang; Yang, Pan
- Advanced Materials, Vol. 22, Issue 44
The phenomenon of negative magnetization and its implications
journal, February 2015
- Kumar, Amit; Yusuf, S. M.
- Physics Reports, Vol. 556
Structural and magnetic characteristics of monodispersed Fe and oxide-coated Fe cluster assemblies
journal, September 2002
- Peng, D. L.; Hihara, T.; Sumiyama, K.
- Journal of Applied Physics, Vol. 92, Issue 6
Magnetization Reversal and Asymmetry in Cobalt Vanadate (IV)
journal, February 1960
- Menyuk, N.; Dwight, K.; Wickham, D. G.
- Physical Review Letters, Vol. 4, Issue 3
Crucial role played by interface and oxygen content in magnetic properties of ultrathin manganite films
journal, June 2013
- Wang, Cong; Jin, Kui-juan; Gu, Lin
- Applied Physics Letters, Vol. 102, Issue 25
Thickness dependence of dynamic and static magnetic properties of pulsed laser deposited La$_{0.7}$Sr$_{0.3}$MnO$_3$ films on SrTiO$_3$(001)
text, January 2014
- Monsen, Åsmund; Boschker, Jos E.; Macià, Ferran
- arXiv
Magnetic relaxation and correlating effective magnetic moment with particle size distribution in maghemite nanoparticles
text, January 2015
- Pisane, Kelly L.; Despeaux, Emily C.; Seehra, Mohindar S.
- arXiv
Finite-Size and surface effects in maghemite nanoparticles: Monte Carlo simulations
text, January 2001
- Iglesias, Oscar; Labarta, Amilcar
- arXiv
Works referencing / citing this record:
Erratum: “Insights into the magnetic dead layer in La 0.7 Sr 0.3 Mn O3 thin films from temperature, magnetic field and thickness dependence of their magnetization” [AIP Advances 8, 056319 (2018)]
journal, February 2018
- Mottaghi, N.; Seehra, M. S.; Trappen, R.
- AIP Advances, Vol. 8, Issue 2
Effect of oxygen stoichiometry on the magnetization profiles and negative magnetization in LSMO thin films
journal, September 2019
- Trappen, Robbyn; Grutter, Alexander J.; Huang, Chih-Yeh
- Journal of Applied Physics, Vol. 126, Issue 10
Observation and interpretation of negative remanent magnetization and inverted hysteresis loops in a thin film of La 0.7 Sr 0.3 MnO 3
journal, September 2018
- Mottaghi, Navid; Trappen, Robbyn B.; Kumari, Shalini
- Journal of Physics: Condensed Matter, Vol. 30, Issue 40
Effects of Oxygen Modification on the Structural and Magnetic Properties of Highly Epitaxial La0.7Sr0.3MnO3 (LSMO) thin films
journal, February 2020
- Kumari, Shalini; Mottaghi, Navid; Huang, Chih-Yeh
- Scientific Reports, Vol. 10, Issue 1
Figures / Tables found in this record: