Zobrazeno 1 - 10
of 967
pro vyhledávání: '"Coey P"'
We study experimentation under endogenous network interference. Interference patterns are mediated by an endogenous graph, where edges can be formed or eliminated as a result of treatment. We show that conventional estimators are biased in these circ
Externí odkaz:
http://arxiv.org/abs/2410.09267
Autor:
Hu, Zexiang, Jha, Ajay, Siewierska, Katarzyna, Smith, Ross, Rode, Karsten, Stamenov, Plamen, Coey, J. M. D.
The magnetization of amorphous DyCo3 and TbCo3 is studied by magnetometry, anomalous Hall effect and magneto-optic Kerr effect to understand the temperature-dependent magnetic structure. A square magnetic hysteresis loop with perpendicular magnetic a
Externí odkaz:
http://arxiv.org/abs/2312.12602
Autor:
Hu, Zexiang, Besbas, Jean, Siewierska, Katarzyna, Smith, Ross, Stamenov, Plamen, Coey, J. M. D.
Sputtered thin films of binary YxCo1-x with 0 < x < 0.54 and thickness 15 nm are investigated to help understand the ferromagnetism of cobalt in amorphous rare-earth cobalt alloys. The magnetic moment per cobalt falls to zero at x0 = 0.50, where the
Externí odkaz:
http://arxiv.org/abs/2309.16996
Autor:
Smith, Ross, Gercsi, Zsolt, Zhang, Rui, Siewierska, Katarzyna Estera, Rode, Karsten, Coey, J. M. D.
Magnetic properties of multicomponent alloys depend sensitively on the degree of atomic order on the different crystallographic sites. In this work we demonstrate the magnetic contrast between bulk and thin-film samples of the Heusler alloy V$_{2}$Fe
Externí odkaz:
http://arxiv.org/abs/2309.11480
Exploring anisotropy and diverse magnetization dynamics in specimens with vanishing magnetic moments presents a significant challenge using traditional magnetometry, as the low resolution of existing techniques hinders the ability to obtain accurate
Externí odkaz:
http://arxiv.org/abs/2307.06403
Autor:
Siewierska, K. E., Kurt, H., Shortall, B., Jha, A., Teichert, N., Atcheson, G., Venkatesan, M., Coey, J. M. D., Gercsi, Z., Rode, K.
The cubic Heusler alloy Ru$_{2-x}$Mn$_{1+x}$Al is grown in thin film form on MgO and MgAl$_2$O$_4$ substrates. It is a highly spin-polarised ferrimagnetic metal, with weak magnetocrystalline anisotropy. Although structurally and chemically similar to
Externí odkaz:
http://arxiv.org/abs/2301.10148
Autor:
Kurian, Jinu, Joseph, Aleena, Cherifi-Hertel, Salia, Fowley, Ciaran, Hlawacek, Gregor, Dunne, Peter, Romeo, Michelangelo, Atcheson, Gwenaël, Coey, J. M. D., Doudin, Bernard
He$^+$ ion irradiation is used to pattern multiple areas of Pt/Co/W films with different irradiation doses in Hall bars. The resulting perpendicular magnetic anisotropy landscape enables selective multilevel current-induced switching, with full deter
Externí odkaz:
http://arxiv.org/abs/2301.02188
Pendant droplets of water and paramagnetic solutions are studied in the presence of uniform and nonuniform magnetic fields produced by small permanent magnet arrays, both in static conditions and during dynamic pinch-off. Static measurements of the d
Externí odkaz:
http://arxiv.org/abs/2211.00431
Autor:
Poulose, Sruthy, Alvarez-Braña, Yara, Basabel-Desmonts, Lourdes, Benito-Lopez, Fernando, Coey, J. M. D.
The evaporation of drops of water placed at the center of long poly(methyl methacrylate) microfluidic channels with a rectangular cross section of 0.38 mm2 is studied by simultaneously monitoring the shapes of two samples, one is in a 300 mT magnetic
Externí odkaz:
http://arxiv.org/abs/2210.16962
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 slowly in freshly evaporated water vapour and the isomers then behave dis
Externí odkaz:
http://arxiv.org/abs/2210.16149