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2006 | 109 | 4-5 | 617-621
Article title

Metal-Insulator Transition in Zinc-Doped LaSrCuO

Content
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Languages of publication
EN
Abstracts
EN
The magnetotransport in the vicinity of the metal-insulator transition in La_{1.85}Sr_{0.15}Cu_xZn_{1-x}O_4 is studied in the mK temperature range. Both longitudinal and transverse magnetoresistance are negative indicating the importance of spin effects. The magnitude of transverse magnetoresistance is larger than the magnitude of longitudinal magnetoresistance, indicating the absence of positive orbital magnetoresistance, in sharp contrast to strongly underdoped La_{2-x}Sr_xCuO_4. Both transverse and longitudinal magnetoresistance are proportional to the relative change of zero-field conductivity. This suggests that low-temperature localization of carriers may originate in the spin-disorder scattering on the spin droplets around Zn-impurities.
Keywords
EN
Publisher

Year
Volume
109
Issue
4-5
Pages
617-621
Physical description
Dates
published
2006-04
received
2005-09-25
Contributors
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
author
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
  • Institute of Physics, Polish Academy of Sciences, al. Lotników 32/46, 02-668 Warsaw, Poland
References
  • 1. Y. Dagan, M.C. Barr, W.M. Fisher, R. Beck, T. Dhakal, A. Biswas, R.L. Greene, Phys. Rev. Lett., 94, 057005, 2005
  • 2. Marta Z. Cieplak, A. Malinowski, S. Guha, M. Berkowski, Phys. Rev. Lett., 92, 187003, 2004
  • 3. K. Karpińska, Marta Z. Cieplak, S. Guha, A. Malinowski, T. Skośkiewicz, W. Plesiewicz, M. Berkowski, B. Boyce, T.R. Lemberger, P. Lindenfeld, Phys. Rev. Lett., 84, 155, 2000
  • 4. M.-H. Julien, T. Fehér, M. Horvatić, C. Berthier, O.N. Bakharev, P. Ségransan, G. Collin, J.-F. Marucco, Phys. Rev. Lett., 84, 3422, 2000
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv109n428kz
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