Zobrazeno 1 - 10
of 71
pro vyhledávání: '"Anissimova, S."'
Autor:
Anissimova, S., Parshall, D., Gu, G. D., Marty, K., Lumsden, M. D., Chi, Songxue, Fernandez-Baca, J. A., Abernathy, D. L., Lamago, D., Tranquada, J. M., Reznik, D.
The insulator-to-metal transition continues to be a challenging subject, especially when electronic correlations are strong. In layered compounds, such as La2-xSrxNiO4 and La2-xBaxCuO4, the doped charge carriers can segregate into periodically-spaced
Externí odkaz:
http://arxiv.org/abs/1309.1798
Publikováno v:
Phys. Rev. B 84, 104509 (2011)
We report temperature dependence of low-energy phonons in magnetic nonsuperconducting TbNi2B2C single crystals measured by inelastic neutron scattering. We observed a low-temperature softening and broadening of two phonon branches, qualitatively simi
Externí odkaz:
http://arxiv.org/abs/1105.3966
Autor:
Nair, R. R., Blake, P., Blake, J. R., Zan, R., Anissimova, S., Bangert, U., Golovanov, A. P., Morozov, S. V., Latychevskaia, T., Geim, A. K., Novoselov, K. S.
Publikováno v:
Appl. Phys. Lett. 97, 153102 (2010)
We demonstrate the application of graphene as a support for imaging individual biological molecules in transmission electron microscope (TEM). A simple procedure to produce free-standing graphene membranes has been designed. Such membranes are extrem
Externí odkaz:
http://arxiv.org/abs/1010.4888
Autor:
Kravets, V. G., Grigorenko, A. N., Nair, R. R., Blake, P., Anissimova, S., Novoselov, K. S., Geim, A. K.
Publikováno v:
Phys. Rev. B 81, 155413 (2010)
We demonstrate that optical transparency of any two-dimensional system with a symmetric electronic spectrum is governed by the fine structure constant and suggest a simple formula that relates a quasi-particle spectrum to an optical absorption of suc
Externí odkaz:
http://arxiv.org/abs/1003.2618
Autor:
Ni, Z. H., Ponomarenko, L. A., Nair, R. R., Yang, R., Anissimova, S., Grigorieva, I. V., Schedin, F., Shen, Z. X., Hill, E. H., Novoselov, K. S., Geim, A. K.
Publikováno v:
Nano Lett. 10, 3868-3872 (2010)
We show that graphene deposited on a substrate has a non-negligible density of atomic scale defects. This is evidenced by a previously unnoticed D peak in the Raman spectra with intensity of about 1% with respect to the G peak. We evaluated the effec
Externí odkaz:
http://arxiv.org/abs/1003.0202
Publikováno v:
Nature Phys. 3, 707 (2007)
The discovery of the metal-insulator transition (MIT) in two-dimensional (2D) electron systems challenged the veracity of one of the most influential conjectures in the physics of disordered electrons, which states that `in two dimensions, there is n
Externí odkaz:
http://arxiv.org/abs/cond-mat/0609181
Autor:
Kravchenko, S. V., Shashkin, A. A., Anissimova, S., Venkatesan, A., Sakr, M. R., Dolgopolov, V. T., Klapwijk, T. M.
Publikováno v:
Ann. Phys. 321, 1588 (2006)
We measure thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon. Pauli spin susceptibility is observed to grow critically at low electron densities - behavior that is characteristic of the ex
Externí odkaz:
http://arxiv.org/abs/cond-mat/0602526
Autor:
Shashkin, A. A., Deviatov, E. V., Dolgopolov, V. T., Kapustin, A. A., Anissimova, S., Venkatesan, A., Kravchenko, S. V., Klapwijk, T. M.
Publikováno v:
Phys. Rev. B 73, 115420 (2006)
In the ballistic regime, the metallic temperature dependence of the conductivity in a two-dimensional electron system in silicon is found to change non-monotonically with the degree of spin polarization. In particular, it fades away just before the o
Externí odkaz:
http://arxiv.org/abs/cond-mat/0504301
Autor:
Anissimova, S., Venkatesan, A., Shashkin, A. A., Sakr, M. R., Kravchenko, S. V., Klapwijk, T. M.
Publikováno v:
Phys. Rev. Lett. 96, 046409 (2006)
We measure the thermodynamic magnetization of a low-disordered, strongly correlated two-dimensional electron system in silicon in perpendicular magnetic fields. A new, parameter-free method is used to directly determine the spectrum characteristics (
Externí odkaz:
http://arxiv.org/abs/cond-mat/0503123
Autor:
Shashkin, A. A., Anissimova, S., Sakr, M. R., Kravchenko, S. V., Dolgopolov, V. T., Klapwijk, T. M.
We show that the Comment by Reznikov and Sivan (cond-mat/0410409) is erroneous because the authors do not distinguish between Pauli and Curie spin susceptibility.
Externí odkaz:
http://arxiv.org/abs/cond-mat/0410605