Quasi-one-dimensional Ta0.96Fe0.0SS3 has been studied in magnetic fields applied at T = 4.2 K by Miissbauer spectrcxcopy. The amplitudes of the CDW's are increased. Also a phase transition is induced; SDW's then coexist with CDW's. When an external magnetic field is applied to charge-density-wave (CDW) conductors at low temperature new phenomena are sometimes observed. For example, Parilla et a...

A detailed study of spin dynamics in a 6 nm Fe3O4 ferrofluid using a substantially improved selective excitation double Mossbauer (SEDM) experimental technique has led to the unambiguous separation of static disorder, collective excitations, and moment reversals. Superparamagnetic spin flips have been observed through the appearance of an additional line in the SEDM spectrum, defining the energ...

We report on high-temperature crystallographic structure, magnetic and physical properties of chemically B-site disordered lead-bismuth iron tungstate, (PFW)1?x(BFO)x (which can be written as Pb0.8Bi0.2Fe0.728W0.264O3 (0.8PFW–0.2BFO) for x = 0.2 Pb0.7Bi0.3Fe0.762W0.231O3 (0.7PFW–0.3BFO) 0.3) or PBFW), solid solutions through neutron diffraction (ND), magnetization, electron paramagnetic resonan...

Soluble methane monooxygenase (MMO) isolated from Methylosinus trichosporium OB3b consists of three components: hydroxylase, reductase, and component B. The active-site diiron cluster of the hydroxylase has been studied with Mossbauer, ENDOR, and EPR spectroscopies. Mossbauer spectra of the oxidized cluster show that the two high-spin irons are antiferromagnetically coupled in accord with our p...