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RuMnAl thin films
K. E. Siewierska, H. Kurt, B. Shortall +7
The cubic Heusler alloy RuMnAl is grown in thin film form on MgO and MgAlO substrates. It is a highly spin-polarised ferrimagnetic metal, with weak magnetoc…
Evaporation of water and urea solution in a magnetic field; the role of nuclear isomers
Sruthy Poulose, M. Venkatesan, Matthias Mobius +1
Hypothesis. Ortho and para water are the two nuclear isomers where the hydrogen protons align to give a total nuclear spin of 0 or 1.The equilibrium ratio of 3:1 is established slo…
Magnetic reversal and pinning in a perpendicular zero moment half-metal
Niclas Teichert, Gwenael Atcheson, Katarzyna Siewierska +6
Compensated ferrimagnets are promising materials for fast spintronic applications based on domain wall motion as they combine the favourable properties of ferromagnets and antiferr…
Study of the Effect of Annealing on the Properties of Mn2RuxGa Thin Films
K. E. Siewierska, G. Atcheson, K. Borisov +3
The effect of vacuum annealing thin films of the compensated ferrimagnetic half-metal Mn2RuxGa at temperatures from 250 to 400 degree Celsius is investigated. The 39.3 nm films dep…
Magnetic Dead Layers in LaSrMnO Revisited
S. B. Porter, M. Venkatesan, P. Dunne +3
The magnetic dead layers in films a few nanometers thick are investigated for LaSrMnO on (001)-oriented SrTiO (STO), LaAlO (LAO) and (LaAlO)…
d-zero Magnetism in Nanoporous Amorphous Alumina Membranes
Amir Sajad Esmaeily, M. Venkatesan, S. Sen +1
Nanoporous alumina membranes produced by mild or hard anodisation in oxalic acid at potentials ranging from 5 - 140 V have a controllable pore surface area of up to 200 times the m…
Magnetization and Anisotropy of Cobalt Ferrite Thin Films
F. Eskandari, S. B. Porter, M. Venkatesan +3
The magnetization of thin films of cobalt ferrite frequently falls far below the bulk value of 455 kAm-1, which corresponds to an inverse cation distribution in the spinel structur…
Surface magnetism of strontium titanate
J. M. D. Coey, M Venkatesan, P Stamenov
SrTiO3 plays a central role in oxide electronics. It is the substrate of choice for functional oxide heterostructures based on perovskite-structure thin-film stacks, and its surfac…
High spin polarization in epitaxial films of ferrimagnetic Mn3Ga
Huseyin Kurt, Karsten Rode, Munuswamy Venkatesan +2
Ferrimagnetic Mn3Ga exhibits a unique combination of low saturation magnetization (Ms = 0.11 MA m-1) and high perpendicular anisotropy with a uniaxial anisotropy constant of Ku = 0…
Ferromagnetism in defect-ridden oxides and related materials
J. M. D. Coey, P. Stamenov, R. D. Gunning +2
The existence of high-temperature ferromagnetism in thin films and nanoparticles of oxides containing small quantities of magnetic dopants remains controversial. Some regard these…
Ferromagnetism in substituted zinc oxide
M. Venkatesan, C. B. Fitzgerald, J. G. Lunney +1
Room-temperature ferromagnetism is observed in (110) oriented ZnO films containing 5 at % of Sc, Ti, V, Fe, Co or Ni, but not Cr, Mn or Cu ions. There are large moments, 1.9 and 0.…