Ru, N., Borzi, R. A., Rost, A., Mackenzie, A. P., Laverock, J., Dugdale, S. B., ...
De Haas-van Alphen oscillations were measured in lanthanum tritelluride (LaTe_3) to probe the partially gapped Fermi surface resulting from charge density wave (CDW) formation. Three distinct...
Interplay between thermal percolation and jamming upon dimer adsorption on binary alloys (2007)
Loscar, Ernesto S., Borzi, R. A., Albano, Ezequiel V.
Using Monte Carlo simulations we study jamming and percolation processes upon the random sequential adsorption of dimers on binary alloys with different degrees of structural order. We obtain the...
Formation of a Nematic Fluid at High Fields in Sr3Ru2O7 (2006)
Borzi, R. A., Grigera, S. A., Farrell, J., Perry, R. S., Lister, S. J. S., Lee, S. L., ...
In principle, a complex assembly of strongly interacting electrons can self-organise into a wide variety of collective states, but relatively few such states have been identified in practice. We...
Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality (2004)
Grigera,S. A., Gegenwart,P., Borzi,R. A., Weickert,F., Schofield,A. J., Perry,R. S., ...
Phase Bifurcation and Quantum Fluctuations in Sr3Ru2O7 (2004)
Green, A. G., Grigera, S. A., Borzi, R. A., Mackenzie, A. P., Perry, R. S., Simons, B. D.
The bilayer ruthenate Sr_3Ru_2O_7 has been cited as a textbook example of itinerant metamagnetic quantum criticality. However, recent studies of the ultra-pure system have revealed striking anomalies...
The de Haas-van Alphen effect across the metamagnetic transition in Sr$_3$Ru$_2$O$_7$ (2004)
Borzi, R. A., Grigera, S. A., Perry, R. S., Kikugawa, N., Kitagawa, K., Maeno, Y., ...
We report a study of the de Haas-van Alphen (dHvA) effect on the itinerant metamagnet Sr$_3$Ru$_2$O$_7$. Extremely high sample purity allows the observation of dHvA oscillations both above and below...
Rigid-Band Shift of the Fermi Level in a Strongly Correlated Metal: Sr(2-y)La(y)RuO(4) (2004)
Kikugawa, N., Mackenzie, A. P., Bergemann, C., Borzi, R. A., Grigera, S. A., Maeno, Y.
We report a systematic study of electron doping of Sr2RuO4 by non-isovalent substitution of La^(3+) for Sr^(2+). Using a combination of de Haas-van Alphen oscillations, specific heat, and resistivity...
Multiple first-order metamagnetic transitions and quantum oscillations in ultrapure (2004)
Perry, R. S., Kitagawa, K., Grigera, S. A., Borzi, R. A., Mackenzie, A. P., Ishida, K., ...
We present measurements on ultra clean single crystals of the bilayered ruthenate metal Sr3Ru2O7, which has a magnetic-field-tuned quantum critical point. Quantum oscillations of differing...
Disorder-Sensitive Phase Formation Linked to Metamagnetic Quantum Criticality (2004)
Grigera, S. A., Gegenwart, P., Borzi, R. A., Weickert, F., Schofield, A. J., Perry, R. S., ...
Angular dependence of the magnetic susceptibility in the itinerant metamagnet Sr3Ru2O7 (2003)
Grigera, S. A., Borzi, R. A., Julian, S. R., Perry, R. S., Maeno, Y., Mackenzie, A. P.
We report the results of a study of the di erential magnetic susceptibility of Sr3Ru2O7 as a function of temperature and magnetic elds applied at a series of angles to the ab plane. By analysing the...
Marchetti, S.G., Borzi, R.A., Cabanillas, E.D., Stewart, S.J., Mercader, R.C.
We report characterizations of systems of antiferromagnetic iron oxide particles of importance in catalysis where Mossbauer spectroscopy has played an essential role. We show that signals...
Magnetic behavior of nanosized cupric oxide (2001)
Borzi, R.A., Stewart, S.J., Mercader, R.C., Punte, G., Garcia, F.
The effect of the particle size and ball-mill-induced defects on the magnetic properties of cupric oxide has been assessed by magnetic measurements. Nanoparticles with an average strain < epsilon > =...
Stewart, S. J., Borzi, R. A., Punte, G., Mercader, R. G., Garcia, F.
We have subjected powder mixtures of (0.5x)alpha -Fe2O3 and (1 - x) CuO to ball milling for a fixed period of 10 h for several x across the whole range of concentrations. No phases other than the...