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Volumn 79, Issue 6, 2009, Pages

Evidence for complex multistability in photomagnetic cobalt hexacyanoferrates from combined magnetic and synchrotron x-ray diffraction measurements

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EID: 62349119008     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.79.064420     Document Type: Article
Times cited : (22)

References (53)
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    • This temperature dependence of χT presumably arises from a sizeable orbital contribution to the effective magnetic moment, μ. Reports on CoII (HS) and FeIII (LS) -based complexes have shown that μ ranges from 4.2 to 5.3 μB per ion for the formers
    • This temperature dependence of χT presumably arises from a sizeable orbital contribution to the effective magnetic moment, μ. Reports on CoII (HS) and FeIII (LS) -based complexes have shown that μ ranges from 4.2 to 5.3 μB per ion for the formers
  • 39
    • 33847798243 scopus 로고
    • and is of the order of 2.4 μB for FeIII (CN) 6 entities [10.1021/ja00432a023
    • and is of the order of 2.4 μB for FeIII (CN) 6 entities [M. F. Tweedle and L. J. Wilson, J. Am. Chem. Soc. 98, 4824 (1976)] in clear contrast with the spin-only moments, 3.87 μB and 1.74 μB, respectively. The magnetic-susceptibility data displayed in Fig. 1 for the quasiequilibrium phases are fairly consistent with the upper values of μ reported for these two species. 10.1021/ja00432a023
    • (1976) J. Am. Chem. Soc. , vol.98 , pp. 4824
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  • 40
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    • Several quenching experiments were carried out at 20 or 30 K using various sample amounts and/or sample holders of different heat capacity (see the experimental section). They all gave similar results for the magnetic data characteristic of the HT quenched phase such as the inflection point of the MFC (T) curve at 50 Oe (±0.2 K), the magnetization value at 5 K under 5 T (±3%), or the decay temperature (less than 1 K difference).
    • Several quenching experiments were carried out at 20 or 30 K using various sample amounts and/or sample holders of different heat capacity (see the experimental section). They all gave similar results for the magnetic data characteristic of the HT quenched phase such as the inflection point of the MFC (T) curve at 50 Oe (±0.2 K), the magnetization value at 5 K under 5 T (±3%), or the decay temperature (less than 1 K difference).
  • 41
    • 0035704733 scopus 로고    scopus 로고
    • Previous work by Varret 10.1023/A:1013843930216
    • Previous work by Varret has evidenced the nonrelaxed character of the magnetic domain structure in the raw photoinduced state, see F. Varret, A. Goujon, and A. Bleuzen, Hyperfine Interact. 134, 69 (2001). 10.1023/A: 1013843930216
    • (2001) Hyperfine Interact. , vol.134 , pp. 69
    • Varret, F.1    Goujon, A.2    Bleuzen, A.3
  • 44
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    • If we assume a phase separation based on chemical heterogeneities, a key point is that the diffraction line splitting occurs at the very first stages, i.e. over the first 15-20 K, of the thermally induced spin transition. It is already apparent as a tail at 230 K, temperature at which the conversion fraction can be estimated as less than 9% from the ratio between the integrated intensities of the (220) lines.
    • If we assume a phase separation based on chemical heterogeneities, a key point is that the diffraction line splitting occurs at the very first stages, i.e. over the first 15-20 K, of the thermally induced spin transition. It is already apparent as a tail at 230 K, temperature at which the conversion fraction can be estimated as less than 9% from the ratio between the integrated intensities of the (220) lines.
  • 52
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    • Jeftic, J.1    Hauser, A.2


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.