Thermodynamic measurements give a great deal of information on fundamental properties, providing direct and quantifiable insight into, e.g., densities of state and phase transitions. Many interesting materials are obtained in the form of sub-microgram single-crystals, thin films or even grafted monolayers. The mass of these samples is extremely small and so is their heat capacity. […]
Read MoreOBJETIVO En este trabajo de fin de master se pretende adaptar la formulación de fermiones de Ginsparg-Wilson y sus consecuencias (por ejemplo el “teorema del índice”), desarrolladas en el área de la física de altas energías, al área reciente de los materiales topológicos. En el desarrollo se combinarán ideas matemáticas de topología y teoría de operadores con teoría […]
Read MoreIntroduction. The chiral solitons stabilized by the DMI are very interesting because they can present advantages over skyrmions, since their movement is not gyro-tropic and they will be easier to control. Moreover, it is interesting to elucidate the advantages that they can present with respect to the domain walls. On the other hand, the theoretical […]
Read MoreIntroduction. In our work we are focused in the development of new types of triangular spin networks employing highly isotropic organic radical spins. By rational designing of organic tri-radicals, an equilateral triangle of S = 1/2 spins can be constructed. Since the anisotropy of the g-factor of these nitroxide-based compounds is less than 0.5 %, […]
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