Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Pavlenko, N. P."'
Autor:
Zabaleta, J., Borisov, V. S., Wanke, R., Jeschke, H. O., Parks, S. C., Baum, B., Teker, A., Harada, T., Syassen, K., Kopp, T., Pavlenko, N., Valentí, R., Mannhart, J.
Two-dimensional electron systems with fascinating properties exist in multilayers of standard semiconductors, on helium surfaces, and in oxides. Compared to the two-dimensional (2D) electron gases of semiconductors, the 2D electron systems in oxides
Externí odkaz:
http://arxiv.org/abs/1605.08528
Publikováno v:
Phys. Rev. B 88, 201104(R) (2013)
The emergence of magnetism in otherwise nonmagnetic compounds and its underlying mechanisms have become the subject of intense research. Here we demonstrate that the nonmagnetic oxygen vacancies are responsible for an unconventional magnetic state co
Externí odkaz:
http://arxiv.org/abs/1308.5319
Autor:
Berner, G., Sing, M., Fujiwara, H., Yasui, A., Saitoh, Y., Yamasaki, A., Nishitani, Y., Sekiyama, A., Pavlenko, N., Kopp, T., Richter, C., Mannhart, J., Suga, S., Claessen, R.
Publikováno v:
Phys. Rev. Lett. 110, 247601 (2013)
The interface between LaAlO3 and SrTiO3 hosts a two-dimensional electron system of itinerant carriers, although both oxides are band insulators. Interface ferromagnetism coexisting with superconductivity has been found and attributed to local moments
Externí odkaz:
http://arxiv.org/abs/1301.2824
Publikováno v:
Phys. Rev. B 86, 064431 (2012)
We show that oxygen vacancies at titanate interfaces induce a complex multiorbital reconstruction which involves a lowering of the local symmetry and an inversion of t2g and eg orbitals resulting in the occupation of the eg orbitals of Ti atoms neigh
Externí odkaz:
http://arxiv.org/abs/1204.4711
Publikováno v:
Phys. Rev. B 85, 020407(R) (2012)
Ferromagnetism and superconductivity are in most cases adverse. However, recent experiments reveal that they coexist at interfaces of LaAlO3 and SrTiO3. We analyze the magnetic state within density functional theory and provide evidence that magnetis
Externí odkaz:
http://arxiv.org/abs/1105.1163
Publikováno v:
Eur. Phys. J. Applied Physics 58, 10601(2012)
Using the density functional theory, we perform a full atomic relaxation of the bulk ferrite with 12.5%-concentration of monoatomic interstitial Cr periodically located at the edges of the bcc Fe$_\alpha$ cell. We show that structural relaxation in s
Externí odkaz:
http://arxiv.org/abs/1102.0432
Publikováno v:
Phys. Rev. B 84, 064303 (2011)
We performed density functional studies of electronic properties and mechanisms of hydrogen transport in Rb3H(SeO4)2 crystal which represents technologically promising class M3H(XO4)2 of proton conductors (M=Rb,Cs, NH4; X=S,Se). The electronic struct
Externí odkaz:
http://arxiv.org/abs/1002.3745
Autor:
Breitschaft, M., Tinkl, V., Pavlenko, N., Thiel, S., Richter, C., Kirtley, J. R., Liao, Y. C., Hammerl, G., Eyert, V., Kopp, T., Mannhart, J.
Publikováno v:
Phys. Rev. B 81, 153414 (2010)
Using tunneling spectroscopy we have measured the spectral density of states of the mobile, two-dimensional electron system generated at the LaAlO3-SrTiO3 interface. As shown by the density of states the interface electron system differs qualitativel
Externí odkaz:
http://arxiv.org/abs/0907.1176
Publikováno v:
Physical Review B (Rapid Communications) 75, 140512(R) (2007)
The electronic structure of interfaces between YBa$_2$Cu$_3$O$_6$ and SrTiO$_3$ is studied using local spin density approximation (LSDA) with intra-atomic Coulomb repulsion (LSDA+U). We find a metallic state in cuprate/titanate heterostructures with
Externí odkaz:
http://arxiv.org/abs/cond-mat/0605589
Autor:
Pavlenko, N., Schwabl, F.
Publikováno v:
Appl. Phys. A 80, 217(2005)
We present a phenomenological model of periodic ferroelectric-superconductor (FE-S) heterostructures containing two alternating ferroelectric and superconducting layers. The interaction at the FE-S contacts is described as a coupling of the local car
Externí odkaz:
http://arxiv.org/abs/cond-mat/0309250