activity
19992013
most citedTemperature dependent magnetic anisotropy in metallic magnets from an ab-initio electronic structure theory: L1_0-ordered FePt

196 citations · 830 across the 29 of their papers we have counts for

collaborators

29 papers

cond-mat.supr-con2013★ 40 cited

The Kerr rotation in the unconventional superconductor SrRuO

Martin Gradhand, Karol I. Wysokinski, James F. Annett +1

The interpretation of Kerr rotation measurements in the superconducting phase of SrRuO is a controversial topic. Both intrinsic and extrinsic mechanisms have been proposed,…

cond-mat.mes-hall2011★ 29 cited

On calculating the Berry curvature of Bloch electrons using the KKR method

M. Gradhand, D. V. Fedorov, F. Pientka +3

We propose and implement a particularly effective method for calculating the Berry curvature arising from adiabatic evolution of Bloch states in wave vector k space. The method exp…

quant-ph2008

Collapse and Revival of `Schrödinger Cat' States

C. E. A. Jarvis, D. A. Rodrigues, B. L. Györffy +3

We study the dynamics of the Jaynes-Cummings Model for an array of two level systems (or qubits) interacting with a quantized single mode electromagnetic cavity (or quantum b…

quant-ph2008★ 1 cited

Collapse and Revival of Entanglement between Qubits Interacting via a Quantum Bus

C. E. A. Jarvis, D. A. Rodrigues, B. L. Györffy +3

We study the dynamics of the Jaynes-Cummings Model for two level systems (or qubits) interacting with a quantized single mode electromagnetic cavity (or `quantum bus'). We show tha…

cond-mat.mes-hall2008★ 5 cited

Friedel oscillations induced surface magnetic anisotropy

A. Szilva, S. Gallego, M. C. Munoz +3

We present detailed numerical studies of the magnetic anisotropy energy of a magnetic impurity near the surface of metallic hosts (Au and Cu), that we describe in terms of a realis…

cond-mat.mtrl-sci2006

Relativistic treatment of spin-currents and spin-transfer torque

A. Vernes, B. L. Gyorffy, P. Weinberger

It is shown that a useful relativistic generalization of the conventional spin density for the case of moving electrons is the expectation value of the four-component Bargmann-Wign…