X-ray effects in charge-ordered manganites: A magnetic mechanism of persistent photoconductivity

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Description

Charge-ordered manganites of composite Pr{sub 1{minus}x}(Ca{sub 1{minus}y}Sr{sub y}){sub x}MnO{sub 3} exhibit persistent photoconductivity when illuminated by x-rays. The authors review transport and x-ray diffraction data as functions of x-ray exposure, magnetic field, and temperature which shed light on the origin of this unusual behavior. The experimental evidence suggests that the mechanism primarily involves a ferromagnetic polarization of local spins by hot electrons generated by the x-rays.

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18 p.

Creation Information

Keimer, B.; Casa, D.; Kiryukhin, V.; Saleh, O.A.; Hill, J.P.; Tomioka, Y. et al. December 31, 1998.

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Description

Charge-ordered manganites of composite Pr{sub 1{minus}x}(Ca{sub 1{minus}y}Sr{sub y}){sub x}MnO{sub 3} exhibit persistent photoconductivity when illuminated by x-rays. The authors review transport and x-ray diffraction data as functions of x-ray exposure, magnetic field, and temperature which shed light on the origin of this unusual behavior. The experimental evidence suggests that the mechanism primarily involves a ferromagnetic polarization of local spins by hot electrons generated by the x-rays.

Physical Description

18 p.

Notes

INIS; OSTI as DE99001522

Source

  • 7. NEC symposium on fundamental approaches to new material phases, Nasu (Japan), 11-15 Oct 1998

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  • Other: DE99001522
  • Report No.: BNL--65994
  • Report No.: CONF-981078--
  • Grant Number: AC02-98CH10886
  • DOI: 10.2172/307972 | External Link
  • Office of Scientific & Technical Information Report Number: 307972
  • Archival Resource Key: ark:/67531/metadc680821

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  • December 31, 1998

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  • July 25, 2015, 2:20 a.m.

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  • Aug. 23, 2016, 3:26 p.m.

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Keimer, B.; Casa, D.; Kiryukhin, V.; Saleh, O.A.; Hill, J.P.; Tomioka, Y. et al. X-ray effects in charge-ordered manganites: A magnetic mechanism of persistent photoconductivity, report, December 31, 1998; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc680821/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.