307 citations · 889 across the 25 of their papers we have counts for
13 papers · 1 filter
Effects of the Zhang-Li Torque on Spin Torque nano Oscillators
Jan Albert, Ferran Macià, Joan Manel Hernàndez
Spin-torque nano-oscillators (STNO) are microwave auto-oscillators based on magnetic resonances having a nonlinear response with the oscillating amplitude, which provides them with…
Generation and stability of dynamical skyrmions and droplet solitons
Nahuel Statuto, Joan Manel Hernàndez, Andrew D. Kent +1
A spin-polarized current in a nanocontact to a magnetic film can create collective magnetic oscillations by compensating the magnetic damping. In particular, in materials with unia…
Simultaneous imaging of strain waves and induced magnetization dynamics at the nanometer scale
Michael Foerster, Ferran Macià, Nahuel Statuto +8
Changes in strain can be used to modify electronic and magnetic properties in crystal structures, to manipulate nanoparticles and cells, or to control chemical reactions. The magne…
Effect of temperature on spin-transfer torque induced magnetic solitons
Sergi Lendínez, Jinting Hang, Saül Vélez +4
Spin-transfer torques in a nanocontact to an extended magnetic film can create spin waves that condense to form dissipative droplet solitons. Here we report an experimental study o…
Thickness and temperature dependence of the magnetodynamic damping of pulsed laser deposited on (111)-oriented SrTi
Vegard Flovik, Ferran Macià, Sergi Lendínez +4
We have investigated the magnetodynamic properties of (LSMO) films of thickness 10, 15 and 30 nm grown on (111)-oriented SrTi$\text{O}_…
Tailoring the magnetodynamic properties of nanomagnets using magnetocrystalline and shape anisotropies
Vegard Flovik, Ferran Macià, Joan Manel Hernàndez +3
Magnetodynamical properties of nanomagnets are affected by the demagnetizing fields created by the same nanoelements. In addition, magnetocrystalline anisotropy produces an effecti…
Direct observation and imaging of a spin-wave soliton with like symmetry
S. Bonetti, R. Kukreja, Z. Chen +12
The prediction and realization of magnetic excitations driven by electrical currents via the spin transfer torque effect, enables novel magnetic nano-devices where spin-waves can b…
Quantum depinning of the magnetic vortex core in micron-size permalloy disks
Ricardo Zarzuela, Saül Vélez, Joan Manel Hernandez +2
The vortex state, characterized by an in-plane closed flux domain structure and an out-of-plane magnetization at its centre (the vortex core), is one of the magnetic equilibria of…
Anisotropic magnetic deflagration in single crystals of Gd5Ge4
S. Vélez, J. M. Hernandez, A. García-Santiago +6
Experimental evidence of the anisotropy of the magnetic deflagration associated with the low-temperature first order antiferromagnetic (AFM) --> ferromagnetic (FM) phase-transition…
Comment on "Magnetic Relaxations of Antiferromagnetic Nanoparticles in Magnetic Fields"
E. del Barco, M. Duran, J. M. Hernandez +1
We have carried out in ferritin the Field-Cooling method and data analysis proposed by Mamiya et al. (Phys. Rev. Lett. 88, 67202 (2002) at T = 5 K in order to check the time magnet…
Relaxation and Landau-Zener experiments down to 100 mK in ferritin
M. Duran, E. del Barco, J. M. Hernandez +1
Temperature-independent magnetic viscosity in ferritin has been observed from 2 K down to 100 mK, proving that quantum tunneling plays the main role in these particles at low tempe…
Giant and time-dependent magnetocaloric effect in high-spin molecular magnets
F. Torres, J. M. Hernandez, X. Bohigas +1
We have measured and calculated the magnetocaloric effect in macroscopic samples of oriented high-spin molecular clusters like Mn12 and Fe8 as a function of the temperature and bot…
Magnetic qubits as hardware for quantum computers
J. Tejada, E. M. Chudnovsky, E. del Barco +2
We propose two potential realisations for quantum bits based on nanometre scale magnetic particles of large spin S and high anisotropy molecular clusters. In case (1) the bit-value…