ICAME 2007, 2009
Proceedings of the 29th International Conference on the Applications of the Mössbauer Effect (ICAME 2007) held in Kanpur, India, 14-19 October 2007

Disordered nature of structural arrangement in amorphous and nanocrystalline alloys gives rise to advantageous soft magnetic properties in particular from a practical application viewpoint [1]. Especially nanocrystalline alloys attract a lot of scienti?c interest because, contrary to their amorphous counterparts, their magnetic parameters do not substantially deteriorate at elevated temperatures during the process of their practical exploitation. To bene?t from their unique magnetic pr- erties, the mechanism of crystallization should be known. Here, we present the study of structural transformation of NANOPERM-type alloys by the help of Mössbauer spectrometry, conventional X-ray diffraction (XRD), and by an advanced diffraction of synchrotron radiation. 2 Experimental Alloys of the composition Fe Mo Cu B for x = 12, 15, 17, 20 prepared by 91?x 8 1 x 57 rapid quenching on a rotating wheel were analyzed in the as-cast state by Fe transmission Mössbauer spectrometry (TMS) and by conversion electron Mössbauer spectrometry (CEMS). The obtained as-quenched ribbons were about 10 mm wide and 20 ?m thick. The nanocrystalline state was achieved by annealing about 2 cm ? long samples for 1 h at temperatures up to 650 C in a vacuum. Conventional XRD was performed with Cu-K radiation in Bragg-Brentano con?guration with graphite ? monochromator in the diffracted beam. Monochromatic synchrotron radiation of 7keV(? = 0. 178 nm) provided at the KMC-2 beamline at BESSY Berlin was used for in situ examinations of structural transformations during continuous heat treatment.

Preface (ICAME2007).- Mössbauer effect: a dual method for myriad applications.- Skutterudites, a thermoelectric material investigated by high field Mössbauer spectroscopy.- Study of nano-scale diffusion in thin films and multilayers.- Iron as a risk factor in neurological diseases.- Mössbauer spectroscopy in studies of photosynthesis.- Iron minerals formed by dissimilatory iron-and sulfur reducing bacteria studied by Mössbauer spectrometry.- Reaction and deposition of laser-evaporated iron.- Iron chelates: a challenge to chemists and Mössbauer spectroscopists.- Mössbauer spectroscopy of magnetic minerals in basalt on Earth and Mars.- The study of electron transfer in advanced materials (electrodes for Li-ion batteries or catalysts).- Out-of-equilibrium Sm–Fe based phases.- Advantages of Mössbauer polarimetric methods in material studies.- The effect of adding a bit of Fe to Ag–Ge–Se system.- Extraterrestrial Mössbauer spectroscopy: more than 3 years of Mars exploration and developments for future missions.- Scientific opportunities in nuclear resonance spectroscopy from source-driven revolution.- A 57Fe Mössbauer spectroscopy study of iron nanoparticles obtained in situ in conversion ferrite electrodes.- Effect of aluminum on the hyperfine field and crystallization behaviour of NANOPERM alloy.- Anomalous magnetic behaviour of zinc and chromium ferrites without any hyperfine splitting.- X-ray diffraction and Mössbauer spectroscopy of high energy ball-milled ?-Fe2O3/TiO2 composite powders.- Structural transformations in NANOPERM-type alloys studied by Mössbauer spectrometry and diffraction of synchrotron radiation.- Study of CuFe2O4–SnO2 nanocomposites by Mössbauer spectroscopy with high velocity resolution.- Mössbauer effect studies on mixed lithium–zinc ferrites prepared by solution combustion method.- Mössbauer and magnetization studies of iron oxide nanocrystals.- Mössbauer study of intergranular phase in Nd 8 Fe86???x Nb x B6(x = 0, 1, 2, 3) nanocomposite magnet.- Comparative study of the structural and magnetic properties of bulk and nanostructured Fe2CrAl.- Evolution of a FeV sigma phase ball-milled in a mixture of argon and air.- Magnetic and Mössbauer spectral studies of nano crystalline cobalt substituted magnesium ferrites (MgxCo1???xFe2O4).- Mössbauer study of nano-crystalline Li–Zn ferrites.- A structural and Mössbauer study of Y3Fe5O12 nanoparticles prepared with high energy ball milling and subsequent sintering.- Magnetic and Mössbauer spectral studies of x?(NiFe2O4) + (1?x)(SrFe12O19), x = 0, 0.2, 0.4, 0.6, 0.8 and 1.0 nanocomposites.- Magnetic and Mössbauer spectroscopic studies of NiZn ferrite nanoparticles synthesized by a combustion method.- Partial amorphization of an ?-FeCr alloy by ball-milling.- Fe-doped TiO2 prepared by mechanical alloying.- Mössbauer studies of nano phase Ce–Fe oxide composites.- Structural and magnetic study of bulk glassy Fe72???x Co x B20Si4Nb4 alloys.- Rapid stress annealing dependence of structural and magnetic properties of Fe75???x Co x Cu1Nb3Si15B6 alloys.- Study of the effect of SHI irradiation on nanocrystalline vacancy doped (La,Sr)(Mn,Fe)O system and its comparison with hydrostatic pressure using Mössbauer spectroscopy.- Mössbauer and magnetic studies of nanocrystalline ? ?-Fe4N.- Low temperature magnetic properties of Cr0.25Co0.25Zn0.5Fe2O4 nano particles.- Magnetic enhancement in nano-sized Ni–Zn ferrite.- Hyperfine interaction studies and magnetic properties of FeCoAlN nanocomposite films.- 129I-Mössbauer study of iodine-doped open- and closed-end single-walled carbon nanotube.- Magnetic and Mössbauer properties of Fe doped VN nanoparticles.- Mössbauer spectroscopy study of aluminium substituted nickel-ferrites.- A Mössbauer investigation of zirconium distribution and diffusion in ball milled nanocrystalline iron powders.- Magnetic characterization of some nanometric iron oxides.- Tin in silicate glasses: structure, thermodynamics and kinetics.- 57Fe Mössbauer spectroscopic study of nanostructured zinc ferrite.- XRD and Mössbauer studies on Pt–Fe nano-particles synthesized by polyol method for cathode catalyst of PEFCS.- Changes in structure and magnetic hyperfine fields of Finemet alloys, induced by transition elements substitution.- 50 MeV Li3?+? ion irradiation induced modifications in structural and magnetic properties of Ti4?+?-substituted Li–Al and Li–Cr ferrites.- Surface spin disorder in nickel ferrite nanomagnets studied by in-field Mössbauer spectroscopy.- Mössbauer spectroscopy of Co2Mn1???x Fe x Al.- Mössbauer spectroscopic investigation of tin-doped thiospinels.- Magnetic properties and Mössbauer studies in Y1?x Gd x Fe2.- Hyperfine interactions studied by 119Sn Mössbauer spectroscopy in SmRhSn.- Mössbauer and magnetic characterization of TbRhSn.- Effect of vanadium neighbors on the hyperfine properties of iron–vanadium alloys.- Mössbauer and magnetic study of silicon substituted cobalt ferrite.- 119Sn Mössbauer study of sol–gel synthetized Fe x Sb y Sn1???x???y O2???? powders.- Relaxation of magnetic clusters in Sr and Fe doped cobaltate perovskites.- 57Co-emission Mössbauer study on diluted magnetic semiconductor TiO2 films.- Magnetic behaviour of nanocrystalline Ni0.5Cu0.5Fe2O4 spinel ferrite.- Hyperfine interactions and dynamics characteristics of 119Sn in xSnO2-(1-x)?-Fe2O3 nanoparticle system.- Study of phase transition on nanocrystalline (La, Sr)(Mn, Fe)O system using high-pressure Mössbauer spectroscopy and high-pressure X-ray diffraction.- Comparative study between melted and mechanically alloyed samples of the Fe50Mn10Al40 nanostructured system.- Structural characterization and magnetic properties of NiMg3x/2Cr0.9Fe1.1???x O4.- Magnetization and Mössbauer studies of 57Fe doped SrCoO3.- Mössbauer study on indium tin oxides (ITO) doped with Fe.- Sol–gel synthesized powder and pulsed laser deposited film of amorphous indium zinc oxides doped with Fe.- Mössbauer studies and magnetic properties of spinel lead ferrite.- (Ni, Zn, Sn) Ru and (Ni, Sn) Sn substituted barium ferrite prepared by mechanical alloying.- Mössbauer spectroscopy of perovskite-related oxide fluorides of composition Ba0.5Sr0.5FeO2F at elevated temperatures.- Mixing characterization of mechanically milled Fe75Si15M10 powders using Mössbauer spectroscopy.- Magnetism of (Fe0.93Ni0.07)2P studied using 57Fe Mössbauer spectroscopy.- The correlation of lattice constant with superexchange interaction in Bi-YIG fabricated by mechanochemical processing.- Structural, magnetic and electrical transport properties of the La0.70Sr0.30Mn0.96 57Fe0.04O3?+?? perovskite.- Antiferromagnetism in Fe-doped PrRh2Si2: a Mössbauer study.- Influence of silicon and cobalt substitutions on magnetostriction coefficient of cobalt ferrite.- Mössbauer study of ferromagnetic metallic glasses irradiated by swift heavy ions at temperatures 100 and 300 K.- Magnetic properties of ferrites synthesized by low temperature technique.- Magnetization and Mössbauer study of double layer perovskites La1.5Ca1.5Mn2???x Fe x O7 prepared by sol–gel method.- Mössbauer study of Fe in 3C-SiC following 57Mn implantation.- Electric field gradients at 151Eu sites in GaN.- Decrease of superparamagnetic fraction at room temperature in ultrafine CoFe2O4 particles by Ag doping.- Magnetic and Mössbauer studies on nanocrystalline Co1?x Li x Fe2O4 (x = 0, 0.2).- Mössbauer and magnetic studies on nanocrystalline NiFe2O4 particles prepared by ethylene glycol route.- Magnetic, Mössbauer and X-ray photoelectron spectroscopic investigations on nanocrystalline Fe3Mo3N, FeMoN2 and Ni3Mo3N nitrides.- 3-Methyl and N-Methyl-substitution in heptanuclear complexes effects multistability investigated by Mössbauer spectroscopy.- Chemical tuning by 5-Methyl and N-Methyl-substitution in heptanuclear complexes effects multistability investigated by Mössbauer spectroscopy.- On the phenomena occurring at the interface between iron and iron–platinum thin films.- Depth resolved structural study of heavy ion induced phase formation in Si/Fe/Si trilayer.- Nuclear resonant reflectivity data evaluation with the “REFTIM” program.- Investigation of magnetic properties in 57Fe/Al multilayers.- Interface study of Ag/57Fe/Ag trilayer using Mössbauer and X-ray standing wave analysis.- CEMS spectra of non-spherical nanoparticles in oxidized iron thin films.- Mössbauer spectroscopy with high velocity resolution in the study of ferritin and Imferon: preliminary results.- Dimeric Fe (II, III) complex of quinoneoxime as functional model of PAP enzyme: Mössbauer, magneto-structural and DNA cleavage studies.- Characterization of the kinetics of Fe (II) binding by the R2 protein subunit of E. coli ribonucleotide reductase.- Mössbauer investigation of iron uptake in wheat.- Mössbauer spectral studies of di- and triorganotin(IV) histidinylleucinates.- Mobility of microparticles in protein gel.- Dynamics of iron in Fe-porphyrin aggregates studied by X-ray absorption and Mössbauer spectroscopy.- 119Sn Mössbauer characterization of self assembled organotin(IV) complexes with Schiff bases containing amino acetate skeletons.- Conformational changes in hemoglobin triggered by changing the iron charge.- Iron-57 Mössbauer spectroscopic study of fluorinated strontium orthoferrite.- 57Fe-Mössbauer study of electrically conducting barium iron vanadate glass after heat treatment.- Mössbauer spectroscopy of 151 europium dicarboxylates.- Investigation of Mo- and W-stannylidyne complexes by Mössbauer spectroscopy.- Synthesis and spectroscopic investigation of iron(III) complexes of N?-(thioaroyl)pyridine-2-carbohydrazides.- Mössbauer studies of nanosized ferrites prepared by the combustion of metal nitrates–oxalyl dihydrazide solutions.- Mössbauer study on iron-polygalacturonate coordination compounds.- Mössbauer spectroscopic studies of spin crossover in tris(N, N?-dialkyldithiocarbamato) iron (III) complexes: effect of alkyl substituents.- Mössbauer study of [Fe(Dioximato) n L2] mixed coordination compounds.- Mössbauer studies of Fe2?+ and Fe3?+ mixed state in ilmenite–hematite solid solution.- Mössbauer spectroscopy of lanthanum and holmium ferrites.- Chemical bonding and quadrupole splittings of 57Fe Mössbauer spectrum in active sites of oxyhemoglobin as calculated by X ? -discrete variation method.- 157 T internal magnetic field in Fe[C(SiMe3)3]2 compound at 20 K.- Structure of some FeII???III hydroxysalt green rusts (carbonate, oxalate, methanoate) from Mössbauer spectroscopy.- Mössbauer study of iron in high oxidation states in the K–Fe–O system.- Mössbauer characteristics of glauconitisation.- Disordered chromite in the Martian meteorite Allan Hills 84001.- Mössbauer studies on impactites from Lonar impact crater.- 57Fe Mössbauer spectroscopy study of organic rich sediment (source rocks) from test well K-263 of Cambay Basin, India.- Fougerite FeII???III oxyhydroxycarbonate in environmental chemistry and nitrate reduction.- Iron speciation in fault gouge from the Ushikubi fault zone central Japan.- Study of iron meteorite Sikhote–Alin and extracted iron–nickel phosphides using Mössbauer spectroscopy with high velocity resolution.- Mössbauer spectroscopy with high velocity resolution in the study of ordinary chondrites.- Mössbauer study of synthetic jarosites.- 57Fe Mössbauer spectroscopy and X-ray diffraction study of complex metamict minerals. Part II.- Mössbauer study of tektites.- Mössbauer and mineral magnetic studies on archaeological potteries from Adhichanallur, Tamilnadu, India.- High-temperature cation ordering in olivine: an in situ Mössbauer study of synthetic (Mg0.55Fe0.45)2 SiO4.- Characterization of Maghsail meteorite from Oman by Mössbauer spectroscopy, X-ray diffraction and petrographic microscopy.- Mössbauer study on microwave synthesized (Cu,Fe) sulfide composites and correlation with natural mineral—cubanite.- Mössbauer studies of Polish enstatite meteorite—Zak?odzie.- Mössbauer and VNIR study of dust generated from olivine basalt: application to Mars.- Mössbauer study of ancient iron smelting slag in Japan.- A Mössbauer spectroscopic study of simulated weathering of Didwana ordinary chondrites.- 57Fe Mössbauer spectroscopy study of phlogopite megacrysts from an evolved carbonatitic kimberlite in the northeastern Oman Mountains.- Mössbauer spectroscopic study of China clay samples collected from different Indian sites.- Reduction of iron(III) in annealed asbestos/chrysotile.- New mineralogical phases identified by Mössbauer measurements in Morasko meteorite.- Weathering of Martian and Earth surface studied by Mössbauer spectroscopy.- Preferential occupation of pyroxene sites by iron in diogenite meteorites.- Iron valency in minerals of xenoliths and redox state of the upper mantle (by Mössbauer spectroscopy data).- Coatings and weathering rinds at Gusev crater, Mars, investigated by depth selective Mössbauer spectroscopy.- Fe mineralogy of rocks from the Vredefort impact structure investigated with Mössbauer spectroscopy.- Variety of available coordination sites for extra-framework iron in LTA and MFI zeolites.- Mössbauer study of magnetism in FeII???III (oxy-)hydroxycarbonate green rusts; ferrimagnetism of FeII???III hydroxycarbonate.- 119Sn Mössbauer spectroscopy: a powerful tool to unfold the reaction mechanism in advanced electrodes for lithium-ion batteries.- Lithium insertion–deinsertion mechanism in NbSn2 anode studied by 119Sn Mössbauer spectroscopy.- Evolution of the negative electrode (tin/silicate) for Li-ion batteries studied by 119 Sn Mössbauer spectroscopy.- Mössbauer spectroscopy and nuclear inelastic scattering studies on polynuclear oxo-bridged iron catalyst—first results.- ICEMS study of isothermal oxidation of Fe–Mn–Al–C–Cr–Si–Mo, Fe–Mn–Al–C–Cr–Si and Fe–9Cr–1Mo alloys.- Neutron in-beam Mössbauer spectroscopy of iron disulfide at 298 and 78 K.- 57Fe Mössbauer study of the electrochemical reaction of Li with FeP y (y?=?1,2).- 121Sb Mössbauer study of the electrochemical reaction of NiSb2 vs lithium.- Effect of cooling conditions on the magnetic structure of multiferroic BiFeO3 synthesized by mechanical activation.- Microstructure and Mössbauer studies on magnetostrictive Tb0.3Dy0.7Fe1.95???x Nb x (x = 0, 0.025, 0.05 and 0.075).- Mössbauer studies of GdFe2???x Hf x alloys.- Low temperature route to the multiferroic FeAlO3: XRD and Mössbauer characterizations.- 57Fe Mössbauer study of La0.67Ca0.33Mn1???x Fe x O3 CMR system.- Study of SHI-induced ion beam mixing in Y3+: YIG employing X-ray diffraction and Mössbauer spectroscopy.- Protection against corrosion of iron alloys by aluminized coatings produced using two different processes.- Borosiliciding of Fe–Ni alloys and evaluation of their resistance to abrasive wear.- Magnetic studies of Bi x Y3-x Fe5O12 fabricated using conventional method.- Effect of Ti4+ substitution on the hyperfine properties of Li–Sb–Ti ferrites using Mössbauer spectroscopy.- Mössbauer study of spin structure transformation from an incommensurate to a commensurate state.- Mössbauer and magnetic studies of the system Li0.35?+?0.5t Zn03Ti t Fe2.35???1.5t O4.- 57Fe Mössbauer investigations in p-type Silicon Germanium single crystals.- Mössbauer and calorimetric studies of portland cement hydration in the presence of black gram pulse.- Follow up of the glassy phase formation as silicon oxide was added to Brownmillerite phase of Portland cement clinker.- Low temperature 151Eu and 57Fe Mössbauer study of mechanically alloyed EuFeO3.- Mössbauer spectroscopic study of iron-doped zirconia synthesized by microwave route.- Conversion electron Mössbauer spectroscopy study of growth and nature of corrosion products on mild steel exposed to different environments.- Mössbauer spectroscopy and magnetic studies of orientated textured Fe3O4 ferrofluid.- Magnetic properties of neutron irradiated RPV steel.- Spin-transition in nearly cubic site in [FeII(L)3][PF6]2.- Sign determination of the hyperfine field by elliptically polarized Mössbauer source.- Isothermal defect annealing in semiconductors investigated by time-delayed Mössbauer spectroscopy: application to ZnO.- Quo vadis? Present and future directions of Mössbauer spectroscopy research: special focus on India.- Application of Mössbauer spectroscopy to the thermal decomposition of strontium and barium bis(CITRATO)Ferrates(III).- q-Gaussian representation of non-Lorentzian Mössbauer lineshapes.- Spin-crossover phenomenon of the assembled iron complexes with 1,2-bis(4-pyridyl)ethane as bridging ligand studied by Mössbauer spectroscopy.- Simultaneous fitting of Mars Mössbauer data.- “Mössbauer spectroscopic microscope”.- Point charge model analysis of the quadrupole splitting in normal spinels.- Experimental design and methodology for a new Mössbauer scan experiment: absorption line tracking.