Publications (30)
What determines the sign of the spin Hall effects in Cu alloys doped with 5d elements?
Zhuo Xu, Bo Gu, Michiyasu Mori +2
We perform a systematical analysis of the spin Hall effect (SHE) in the Cu alloys doped with a series of 5d elements, by the combined approach of density functional theory and Hart…
Temperature can enhance coherent oscillations at a Landau-Zener transition
Robert S. Whitney, Maxime Clusel, Timothy Ziman
We consider sweeping a system through a Landau-Zener avoided-crossing, when that system is also coupled to an environment or noise. Unsurprisingly, we find that decoherence suppres…
Magnetic Structures and Spin-wave Excitations in Rare-Earth Iron Garnets near the Compensation Temperature
Michiyasu Mori, Timothy Ziman
We introduce a simple model for the ferrimagnetic non-collinear ``magnetic umbrella" states of rare-earth iron garnets (REIG), common when the rare-earth moments have non-zero orbi…
Transverse magnetization and transient oscillations in the quantum tunneling of molecular magnets
Maxime Clusel, Timothy Ziman
We calculate the response of a molecular magnet subject to a time-varying magnetic field and coupled to a heat bath. We propose that observations of calculated oscillations transve…
Theory of record thermopower near a finite temperature magnetic phase transition: IrMn
Peter Wölfle, Timothy Ziman
The effect of scattering of conduction electrons by dynamical spin fluctuations on the thermopower in metals near a thermal phase transition into an antiferromagnetic phase is cons…
Enhanced spin Hall effect by electron correlations in CuBi alloys
Bo Gu, Zhuo Xu, Michiyasu Mori +2
A recent experiment in CuBi alloys obtained a large spin Hall angle (SHA) of -0.24 (Niimi et al. Phys. Rev. Lett. 109, 156602 (2012)). We find that the SHA can be dramatically enha…