Search results for "High magnetic field"
showing 3 items of 3 documents
Interaction-induced spin polarization in quantum dots.
2010
The electronic states of lateral many electron quantum dots in high magnetic fields are analyzed in terms of energy and spin. In a regime with two Landau levels in the dot, several Coulomb blockade peaks are measured. A zig-zag pattern is found as it is known from the Fock-Darwin spectrum. However, only data from Landau level 0 show the typical spin-induced bimodality, whereas features from Landau level 1 cannot be explained with the Fock-Darwin picture. Instead, by including the interaction effects within spin-density-functional theory a good agreement between experiment and theory is obtained. The absence of bimodality on Landau level 1 is found to be due to strong spin polarization.
High Magnetic Fields Thermodynamics of Heavy Fermion Metals
2014
In this chapter, we present the comprehensive theoretical analysis of thermodynamics of HF compounds at high magnetic fields. Such analysis permits to gain a deeper insight into the interplay of high magnetic field and temperature in suppressing and retrieving the Landau Fermi liquid state in these substances. Our analysis shows that although high magnetic fields and temperatures alter the properties of ordinary Landau quasiparticles, they survive, generating the experimentally observable anomalies in the thermodynamical quantities of HF compounds. We illustrate our theoretical findings by the example of the HF compound \(\mathrm{{YbRh_2Si_2}}\).
From My Postdoc at the “Abteilung Cardona”
2015
Before finishing my Ph.D. in September 1986, I had already a non permanent position at the University of Valencia, it was called at this time assistant professor (profesor ayudante), with a lot of teaching. I sent a letter to Manuel at the beginning of 1987 and, after receiving the letter, he called immediately by phone my thesis advisor, Prof. Alfredo Segura. Manuel told him: I have a lot of people at the moment, but if he is very good, I will accept him. Finally, he sent me an acceptation letter and I got a fellowship from the local government and the Ministry of Education. I did my postdoc from December 87 to 89.