Zobrazeno 1 - 10
of 456
pro vyhledávání: '"RIVADULLA, F."'
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 39, Iss 3, Pp 259-262 (2000)
Intergranular magnetotransport effects are studied on polycrystalline manganites. Reducing grain size through sol-gel technology allows us to show new results on these materials. Intrinsic colossal magnetoresistance is destroyed in metalinsulator pha
Externí odkaz:
https://doaj.org/article/5ceb40bac78747c1b655bd06542303ae
Publikováno v:
Boletín de la Sociedad Española de Cerámica y Vidrio, Vol 45, Iss 3, Pp 175-177 (2006)
Mixed-valent manganese oxides with perovskite structure offer a certain degree of chemical flexibility that allows making systematic studies of the relationship between the electric and magnetic properties with the crystalline structure. Here we pres
Externí odkaz:
https://doaj.org/article/9eef6f7cb8374f3f9b307c4f08ebdfe0
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