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Your search keyword '"Simon T. Lees"' showing total 2 results
Start Over Author "Simon T. Lees" Topic magnetic susceptibility
2 results on '"Simon T. Lees"'

1. MAGNETIC-RELAXATION BEHAVIOR IN THE SYSTEMS SR1+XLA1-XFE1-XSNXO4 AND SRLAFE1-XGAXO4 BY MOSSBAUER-SPECTROSCOPY AND MAGNETOMETRY

Author

Peter D. Battle, Andrew J. Herod, Simon T. Lees, and Terence C. Gibb

Subjects
Mössbauer effect, Condensed matter physics, Magnetometer, Magnetism, Chemistry, Relaxation (NMR), General Chemistry, Magnetic susceptibility, law.invention, Hysteresis, Nuclear magnetic resonance, law, Materials Chemistry, Diamagnetism, Néel temperature
Abstract

The effects of magnetic dilution on the magnetism in the two-dimensional (2D) oxide systems Sr1 +xLa1 –x Fe1 –xSnxO4 and SrLaFe1 –xGaxO4 have been studied by Mossbauer spectroscopy and magnetometry. The end-member, SrLaFeO4, has a Neel temperature (TN) of 330 K, and shows some degree of magnetic relaxation for T/TN > 0.9. Diamagnetic substitution results in increased relaxation at concentrations where magnetic percolation is still effective. The magnetic susceptibility shows pronounced hysteresis effects. The possible role of the inter-planar interactions in determining the magnetic behaviour of these materials is discussed.

Published
2016

2. Induction of high-temperature superconductivity in pulsed laser ablated La2CuO4 thin films by room temperature chemical oxidation

Author

M. Slaski, Emilio Morán, Martin O. Jones, Peter P. Edwards, Simon T. Lees, Ian Gameson, Carmen Rial, and Ulises Amador

Subjects
Pulsed laser, Superconductivity, Materials science, High-temperature superconductivity, Condensed matter physics, Mechanics of Materials, law, Mechanical Engineering, Analytical chemistry, General Materials Science, Thin film, Magnetic susceptibility, law.invention
Published
1997

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