Electronic Raman scattering through a stripe ordering transition in La₂₋xSrxNiO₄
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Electronic Raman scattering through a stripe ordering transition in La₂₋xSrxNiO₄
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| Creator |
Gnezdilov, V.P.
Pashkevich, Yu. G. Yeremenko, A.V. Lemmens, P. Güntherodt, G. Tranquada, J.M. Buttrey, D.J. Nakajima, K. |
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| Subject |
Магнетизм
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| Description |
We describe the results of electronic Raman scattering experiments in two differently doped single crystals of La₂₋xSrxNiO₄ (x=0.225 and 1/3). In B₁g symmetry a crossover from weakly interacting to pseudogap-like behavior is observed at a charge-ordering temperature Tco. In B₂g symmetry a redistribution of electronic continua with decreasing temperature is accompanied by a loss of spectral weight below Tco in the low-frequency region due to opening of a pseudogap. The slope of the Raman response at vanishing frequencies is investigated, too. Its temperature behavior in B₂g symmetry, which predominantly selects charge carriers with momenta along the diagonals of the NiO₂ bonds, provides clear evidence for one-dimensional charge transport in the charge-ordered phase.
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| Date |
2018-02-09T11:12:58Z
2018-02-09T11:12:58Z 2002 |
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| Type |
Article
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| Identifier |
Electronic Raman scattering through a stripe ordering transition in La₂₋xSrxNiO₄ / V.P. Gnezdilov, Yu. G. Pashkevich, A.V. Yeremenko, P. Lemmens, G. Güntherodt, J.M. Tranquada, D.J. Buttrey, K. Nakajima // Физика низких температур. — 2002. — Т. 28, № 7. — С. 716-723. — Бібліогр.: 33 назв. — англ.
0132-6414 PACS: 78.30.-j http://dspace.nbuv.gov.ua/handle/123456789/130241 |
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| Language |
en
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| Relation |
Физика низких температур
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| Publisher |
Фізико-технічний інститут низьких температур ім. Б.І. Вєркіна НАН України
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