Jordi Marcos

A high-sensitivity differential scanning calorimeter with magnetic field for magnetostructural transitions

We have developed a differential scanning calorimeter capable of working under applied magnetic fields of up to 5 T. The calorimeter is highly sensitive and operates over the temperature range 10–300 K. It is shown that, after a proper calibration, the system enables determination of the latent heat and entropy changes in first-order solid–solid phase transitions. The system is particularly useful for investigating materials that exhibit the giant magnetocaloric effect arising from a magnetostructural phase transition. Data for Gd5(Si0.1Ge0.9)4 are presented.

Martensitic transition and magnetoresistance in a Cu-Al-Mn shape-memory alloy: Influence of ageing

We have studied the effect of ageing within the miscibility gap on the electric, magnetic, and thermodynamic properties of a nonstoichiometric Heusler Cu-Al-Mn shape-memory alloy, which undergoes a martensitic transition from a bcc-based structure

Magnetocaloric and Shape-Memory Properties in Magnetic Heusler Alloys

(\ensuremath{\beta}

Disorder-induced critical phenomena in magnetically glassy Cu-Al-Mn alloys

phase) towards a close-packed structure

Change in entropy at a first-order magnetoelastic phase transition: Case study of Gd5(SixGe1-x)4 giant magnetocaloric alloys

(M

Kinetics of the phase separation in Cu–Al–Mn alloys and the influence on martensitic transformations

phase). Negative magnetoresistance that shows an almost linear dependence on the square of magnetization with different slopes in the M and

Magnetic phase separation in ordered alloys

\ensuremath{\beta}

Magnetoelasticity and magnetoresistance in Cu-Al-Mn shape-memory alloys

phases was observed. This magnetoresistive effect has been associated with the existence of Mn-rich clusters with the

Multiscale origin of the magnetocaloric effect in Ni-Mn-Ga shape-memory alloys

{\mathrm{Cu}}_{2}\mathrm{AlMn}

Entropy change and magnetocaloric effect in Gd5(SixGe1-x)4

structure. The effect of an applied magnetic field on the martensitic transition has also been studied. The entropy change between the