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X-ray magnetic circular dichroism

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Journal Article
Published: 01 May 2006
American Mineralogist (2006) 91 (5-6): 880–893.
... spectroscopic techniques of L 2,3 X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD). By comparing XMCD data with calculated spectra, the site occupancies of the Fe cations have been determined. From the analysis of natural ferrite spinels with formulae very close to that of pure...
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Journal Article
Published: 01 June 2016
American Mineralogist (2016) 101 (6): 1373–1388.
... of its distribution over the tetrahedral and octahedral sites ( Henderson et al. 2007 ). Because L -edge XAS probes the empty d -orbitals of Fe and because of spin selectivity of X-ray magnetic circular dichroism (XMCD), these latter techniques can easily discriminate between Fe 2+ and Fe 3+ as well...
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Journal Article
Published: 01 June 2012
The Canadian Mineralogist (2012) 50 (3): 667–674.
...Liao Chang; Richard A.D. Pattrick; Gerrit van der Laan; Victoria S. Coker; Andrew P. Roberts Abstract Greigite (Fe 3 S 4 ), a widely occurring iron thiospinel, was investigated using soft X-ray absorption spectroscopy (XAS) and X-ray magnetic circular dichroism (XMCD). XAS and XMCD spectra were...
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Journal Article
Published: 01 April 2010
American Mineralogist (2010) 95 (4): 425–439.
...-ulvöspinel (Fe 3 O 4 -Fe 2 TiO 4 ) solid-solution series was determined using Fe L 2,3 -edge X-ray magnetic circular dichroism (XMCD) coupled with electron microprobe and chemical analysis, Ti L 2,3 -edge and Fe K -edge X-ray absorption spectroscopy (XAS), and unit-cell parameters. Microprobe analyses, cell...
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Journal Article
Published: 01 October 2007
European Journal of Mineralogy (2007) 19 (5): 707–716.
... to chemically similar phases that show different physical characteristics. We compare, for the first time, magnetite produced by these three different methods using X-ray magnetic circular dichroism (XMCD), a synchrotron radiation based technique able to determine the site occupancy of Fe cations in the ferrite...
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Journal Article
Published: 01 November 2002
European Journal of Mineralogy (2002) 14 (6): 1095–1102.
...Richard A. D. PATTRICK; Gerrit VAN DER LAAN; C. Michael B. HENDERSON; Pieter KUIPER; Esther DUDZIK; David J. VAUGHAN Abstract X-ray magnetic circular dichroism (XMCD) is an element-, site- and symmetry-selective spectroscopic technique that has the potential to provide quantitative information...
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Journal Article
Published: 01 July 2008
American Mineralogist (2008) 93 (7): 1119–1132.
.... This was done at ambient temperatures through the dissimilatory reduction of Fe 3+ -oxyhydroxides containing the appropriate substitutional cations. A combination of L -edge and K -edge X-ray absorption spectroscopy (XAS) and L -edge X-ray magnetic circular dichroism (XMCD) was used to determine the site...
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Journal Article
Published: 01 August 2017
Mineralogical Magazine (2017) 81 (4): 857–872.
... for these materials have a narrow single peak at 707.7 eV and the resulting main X-ray magnetic circular dichroism (XMCD) has the same sign at 708.75 eV. All XMCD spectra also have a broad positive feature at 711 eV, a characteristic of covalent mixing. The greigite XMCD spectra contrast with the three clearly...
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Journal Article
Published: 01 July 2020
Mineralogical Magazine (2020) 84 (4): 554–562.
... from X-ray magnetic circular dichroism analysis revealed the magnetite to contain the V in the Fe(III) O h site, predominately as V(III) but always with a component of V(VI), present a consistent V(IV)/V(III) ratio in the range 0.28 to 0.33. The bacteriogenic production of V-doped magnetite...
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Journal Article
Published: 01 May 2008
American Mineralogist (2008) 93 (5-6): 880–885.
...Claire Carvallo; Philippe Sainctavit; Marie-Anne Arrio; Nicolas Menguy; Yuheng Wang; Georges Ona-Nguema; Sandrine Brice-Profeta Abstract X-ray magnetic circular dichroism (XMCD) experiments were carried out to compare the Fe 2+ / Fe 3+ ratio in nanomagnetite chemically produced from lepidocrocite...
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Journal Article
Published: 01 January 2012
American Mineralogist (2012) 97 (1): 164–175.
..., are given with respect to metallic α-iron at 298 K. The composition of three solid-solution samples was also characterized using X-ray absorption (XA) spectroscopy and X-ray magnetic circular dichroism (XMCD), an XA difference spectrum technique based on circularly polarized light absorption...
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Journal Article
Published: 01 August 2012
American Mineralogist (2012) 97 (8-9): 1330–1338.
... phase separation at low temperature. We use high-temperature oxide melt solution calorimetry, a procedure with advantages for the present system as described in detail in Lilova et al. (2011) . We include detailed analytical, diffraction, synchrotron-based X-ray magnetic circular dichroism (XMCD...
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Journal Article
Published: 01 January 2006
Reviews in Mineralogy and Geochemistry (2006) 61 (1): 127–180.
... Chen CT , Idzerda YU , Kao C-C , Tjeng LH , Lin H-J , Meigs G ( 1995 ) Recent progress in soft-X-ray magnetic circular dichroism . J China Univ Sci Tech 25 : 1 – 10 Cheroff G , Keller SP ( 1958 ) Optical transmission and photoconductive...
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Journal Article
Published: 01 January 2002
Reviews in Mineralogy and Geochemistry (2002) 49 (1): 117–147.
... that produces desired polarization is shown in Figure 12 . These devices are ideal for polarization sensitive measurements such as X-ray magnetic circular dichroism (XMCD) of magnetic materials. It follows that the power radiated (kW) for a stored current of I (ampere) is (21) \batchmode...
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Journal Article
Published: 01 April 2000
Clays and Clay Minerals (2000) 48 (2): 272–281.
.... , Garcia , M.L. , Bartolome , F. , Marcelli , A. , Cibin , G. , Maruyama , H. , Pizzini , S. , Rogalev , A. , Goedkoop , J.B. , and Goulon , J. ( 1998 ) X-ray magnetic-circular-dichroism probe of a noncollinear magnetic arrangement below the spin reorientation...
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Journal Article
Published: 01 April 2013
American Mineralogist (2013) 98 (4): 698–708.
... studies [ Bosi et al. (2009) using X-ray single-crystal diffraction and Pearce et al. 2010 using X-ray magnetic circular dichroism] present results that are at opposite extremes of the range of previously reported cation distributions and that disagree dramatically in their assessment of when Fe 2...
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Journal Article
Published: 01 July 2010
American Mineralogist (2010) 95 (7): 1017–1026.
... common spectroscopic techniques have also been used to characterized stoichiometry, including X-ray magnetic circular dichroism (XMCD) and Fourier transform infrared spectroscopy (FTIR) ( Antonov et al. 2003 ; Carvallo et al. 2008 ; Gotic et al. 2009 ; Morrall et al. 2003 ). Studies measuring...
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Journal Article
Published: 01 October 2008
The Canadian Mineralogist (2008) 46 (5): 1317–1322.
... , R.V. & Suzuki , Y. ( 2008 ): Influence of crystal field on anisotropic X-ray magnetic linear dichroism at the Co 2+ L 2, 3 edges . Phys. Rev. B 77 , 064407-1/11 . van der Laan , G. & Kirkman , I.W. ( 1992 ): The 2 p absorption spectra of 3 d transition-metal...
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Journal Article
Published: 01 January 2016
American Mineralogist (2016) 101 (1): 205–210.
... A. Hämäläinen K. Kao C.C. Hastings J.B. ( 1995 ) Local-spin-selective X-ray absorption and X-ray magnetic circular dichroism of MnP . Physical Review B , 51 , 1045 – 1052 . Dera P. Lavina B. Borkowski L.A. Prakapenka V.B. Sutton S.R. Rivers M.L. Downs R.T...
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Journal Article
Published: 02 January 2024
American Mineralogist (2024) 109 (1): 144–149.
...: A new approach using X-ray magnetic circular dichroism . American Mineralogist , 95 , 425 – 439 , https://doi.org/10.2138/am.2010.3343 . Prissel , K.B. , Fei , Y. , and Strobel , T.A. ( 2022a ) Synthesis and stability of feiite with implications for its formation conditions...
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