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- Ali, M., et al.
(author)
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Reduced photoluminescence from InGaN/GaN multiple quantum well structures following 40 MeV iodine ion irradiation
- 2009
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In: Physica. B, Condensed matter. - : Elsevier. - 0921-4526 .- 1873-2135. ; 404:23-24, s. 4925-4928
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Journal article (peer-reviewed)abstract
- The effects following ion irradiation of GaN-based devices are still limited. Here we present data on the photoluminescence (PL) emitted from InGaN/GaN multiple quantum well (MQW) structures, which have been exposed to 40 MeV I ion irradiation. The PL is reduced as a function of applied ion fluence, with essentially no PL signal left above 1011 ions/cm2. It is observed that even the ion fluences in the 109 ions/cm2 range have a pronounced effect on the photoluminescence properties of the MQW structures. This may have consequences concerning application of InGaN/GaN MQW’s in radiation-rich environments, in addition to defect build-up during ion beam analysis.
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- Linderholm, Anna, et al.
(author)
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Diet and status in Birka : stable isotopes and grave goods compared
- 2008
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In: Antiquity. - 0003-598X .- 1745-1744. ; 82:316, s. 446-461
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Journal article (peer-reviewed)abstract
- In this paper the authors investigate isotopic signatures of burials from the famous Viking period cemetery at Birka in Sweden, comparing their results on diet with the status and identities of individuals as interpreted from grave goods. These first observations offer a number of promising correlations, for example the shared diet of a group of women associated with trade, and a marine emphasis among men buried with weapons.
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