Zobrazeno 1 - 10
of 453
pro vyhledávání: '"Rivadulla F"'
Autor:
Bugallo, D., Langenberg, E., Carbó-Argibay, E., Domínguez, Noa Varela, Fumega, A. O., Pardo, V., Lucas, Irene, Morellón, Luis, Rivadulla, F.
Accessing the regime of coherent phonon propagation in nanostructures opens enormous possibilities to control the thermal conductivity in energy harvesting devices, phononic circuits, etc. In this paper we show that coherent phonons contribute substa
Externí odkaz:
http://arxiv.org/abs/2111.13035
Autor:
Fumega, Adolfo O., Blanco-Canosa, S., Babu-Vasili, H., Zhou, Jian-Shi, Rivadulla, F., Pardo, Victor
Low dimensional magnetism has been powerfully boosted as a promising candidate for numerous applications. The stability of the long-range magnetic order is directly dependent on the electronic structure and the relative strength of the competing magn
Externí odkaz:
http://arxiv.org/abs/2004.11789
Autor:
Vélez, Saül, Golovach, Vitaly N., Gomez-Perez, Juan M., Bui, Cong Tinh, Rivadulla, F., Hueso, Luis E., Bergeret, F. Sebastian, Casanova, Fèlix
Publikováno v:
Phys. Rev. B 100, 180401 (2019)
We observe an unusual behavior of the spin Hall magnetoresistance (SMR) measured in a Pt ultra-thin film deposited on a ferromagnetic insulator, which is a tensile-strained LaCoO3 (LCO) thin film with the Curie temperature Tc=85K. The SMR displays a
Externí odkaz:
http://arxiv.org/abs/1805.11225
The subtle balance of electronic correlations, crystal field splitting and spin--orbit coupling in layered Ir$^{4+}$ oxides can give rise to novel electronic and magnetic phases. Experimental progress in this field relies on the synthesis of epitaxia
Externí odkaz:
http://arxiv.org/abs/1711.02767
We report the enthalpy of oxygen vacancy formation in thin films of electron-doped SrTiO$_{3}$, under different degrees of epitaxial stress. We demonstrate that both compressive and tensile strain decrease this energy at a very similar rate, and prom
Externí odkaz:
http://arxiv.org/abs/1704.05620
Autor:
Vila-Fungueiriño, J. M., Bu, Cong Tinh, Rivas-Murias, B., winkler, E., Milano, J., Santiso, J., Rivadulla, F.
The suitability of a particular material for use in magnetic devices is determined by the process of magnetization reversal/relaxation, which in turn depends on the magnetic anisotropy. Therefore, designing new ways to control magnetic anisotropy in
Externí odkaz:
http://arxiv.org/abs/1603.01127
Publikováno v:
Phys. Rev. Lett. 115, 166801 (2015)
We report thermoelectric power experiments in e-doped thin films of SrTiO$_3$ (STO) which demonstrate that the electronic band degeneracy can be lifted through defect management during growth. We show that even small amounts of cationic vacancies, co
Externí odkaz:
http://arxiv.org/abs/1504.03507
Autor:
Mun, E. D., Chern, Gia-Wei, Pardo, V., Rivadulla, F., Sinclair, R., Zhou, H. D., Zapf, V. S., Batista, C. D.
Publikováno v:
Phys. Rev. Lett. 112, 017207 (2014)
We study vanadium spinels $A$V$_2$O$_4$ ($A$ = Cd, Mg) in pulsed magnetic fields up to 65 T. A jump in magnetization at $\mu_0 H \approx$ 40 T is observed in the single-crystal MgV$_2$O$_4$, indicating a field induced quantum phase transition between
Externí odkaz:
http://arxiv.org/abs/1307.4775
We report the thermoelectric properties (Seebeck coefficient, thermal conductivity, and electrical resistivity) of lightly doped single crystals of (001)-oriented SrTiO3 (STO). Hall effect measurements show that electron doping around 10^-5 carriers
Externí odkaz:
http://arxiv.org/abs/1211.1615
Nonmonotonic Evolution of the Blocking Temperature in Dispersions of Superparamagnetic Nanoparticles
Publikováno v:
Phys. Rev. B 82, 134433 (2010)
We use a Monte Carlo approach to simulate the influence of the dipolar interaction on assemblies of monodisperse superparamagnetic ${\gamma}-Fe_{2}O_{3}$ nanoparticles. We have identified a critical concentration c*, that marks the transition between
Externí odkaz:
http://arxiv.org/abs/1011.2650