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Akademický článek
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Autor:
Grutter, A. J., Yang, H., Kirby, B. J., Fitzsimmons, M. R., Aguiar, J. A., Browning, N. D., Jenkins, C. A., Arenholz, E., Mehta, V. V., Alaan, U. S., Suzuki, Y.
We observe interfacial ferromagnetism in superlattices of the paramagnetic metal LaNiO3 and the antiferromagnetic insulator CaMnO3. LaNiO3 exhibits a thickness dependent metal-insulator transition and we find the emergence of ferromagnetism to be coi
Externí odkaz:
http://arxiv.org/abs/1307.8050
Autor:
Zhang, S. X., Ogale, S. B., Fu, L. F., Dhar, S., Kundaliya, D. C., Ramadan, W., Browning, N. D., Venkatesan, T.
Publikováno v:
Appl. Phys. Lett. 88, 012513 (2006)
It is shown that dilute niobium doping has significant effect on the ferromagnetism and microstructure of dilutely cobalt-doped anatase TiO2 films. Epitaxial films of anatase TiO2 with 3% Co, without and with 1% niobium doping were grown by pulsed-la
Externí odkaz:
http://arxiv.org/abs/cond-mat/0601528
Autor:
Varela, M., Lupini, A. R., Pena, V., Sefrioui, Z., Arslan, I., Browning, N. D., Santamaria, J., Pennycook, S. J.
YBa2Cu3O7-x/La0.67Ca0.33MnO3 ferromagnetic/superconducting interfaces are analyzed by scanning transmission electron microscopy and electron energy loss spectroscopy with monolayer resolution. We demonstrate that extensive charge transfer occurs betw
Externí odkaz:
http://arxiv.org/abs/cond-mat/0508564
Autor:
Shinde, S. R., Ogale, S. B., Ogale, Abhijit S., Welz, S. J., Lussier, A., Kundaliya, Darshan C., Zheng, H., Dhar, S., Rao, M. S. R., Ramesh, R., Idzerda, Y. U., Browning, N. D., Venkatesan, T.
We revisit the most widely investigated and controversial oxide diluted magnetic semiconductor (DMS), Co:TiO2, with a new high temperature film growth, and show that the corresponding material is not only an intrinsic DMS ferromagnet, but also suppor
Externí odkaz:
http://arxiv.org/abs/cond-mat/0505265
Autor:
Rao, M. S. Ramachandra, Dhar, S., Welz, S. J., Ogale, S. B., Kundaliya, Darshan C., Shinde, S. R., Lofland, S. E., Metting, C. J., Erni, R., Browning, N. D., Venkatesan, T.
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Externí odkaz:
http://arxiv.org/abs/cond-mat/0405378
Autor:
Ogale, S. B., Choudhary, R. J., Buban, J. P., Lofland, S. E., Shinde, S. R., Kale, S. N., Kulkarni, V. N., Higgins, J., Lanci, C., Simpson, J. R., Browning, N. D., Sarma, S. Das, Drew, H. D., Greene, R. L., Venkatesan, T.
Occurrence of room temperature ferromagnetism is demonstrated in pulsed laser deposited thin films of Sn1-xCoxO2-d (x<0.3). Interestingly, films of Sn0.95Co0.05O2-d grown on R-plane sapphire not only exhibit ferromagnetism with a Curie temperature cl
Externí odkaz:
http://arxiv.org/abs/cond-mat/0301456
Autor:
Zhao, Y. G., Shinde, S. R., Ogale, S. B., Higgins, J., Lofland, S. E., Lanci, C., Buban, J. P., Browning, N. D., Sarma, S. Das, Millis, A. J., Kulkarni, V. N., Choudhary, R. J., Greene, R. L., Venkatesan, T.
Ferromagnetism is observed at and above room temperature in pulsed laser deposited epitaxial films of Co-doped Ti-based oxide perovskite (La1-xSrxTiO3-d). The system has the characteristics of an intrinsic diluted magnetic semiconductor (metal) at lo
Externí odkaz:
http://arxiv.org/abs/cond-mat/0209267
Autor:
Shinde, S. R., Ogale, S. B., Sarma, S. Das, Simpson, J. R., Drew, H. D., Lofland, S. E., Lanci, C., Buban, J. P., Browning, N. D., Kulkarni, V. N., Higgins, J., Sharma, R. P., Greene, R. L., Venkatesan, T.
Pulsed laser deposited films of Co doped anatase TiO2 are examined for Co substitutionality, ferromagnetism, transport, magnetotransport and optical properties. Our results show limited solubility (up to ~ 2 %) of Co in the as-grown films and formati
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203576
Autor:
Klie, R. F., Idrobo, J. C., Browning, N. D., Serquis, A. C., Zhu, Y. T., Liao, X. Z., Mueller, F. M.
Here we describe the results of an atomic resolution study of oxygen incorporation into bulk MgB2. We find that ~20-100 nm sized precipitates are formed by ordered substitution of oxygen atoms onto boron lattice sites, while the basic bulk MgB2 cryst
Externí odkaz:
http://arxiv.org/abs/cond-mat/0203292