GLOOM
发表于 2025-3-28 17:55:26
Nanowires of iron oxides embedded in SiO2 templates,s impregnation. The mesoporous material was instilled with a Fe-carrying organic salt after subjecting the matrix to a silylation treatment. Thus, a solid of 7.7 wt.% iron-loaded MCM-41 was obtained. Different subsequent thermal treatments were used to produce γ-Fe.O. or Fe.O.. The Mössbauer and mag
材料等
发表于 2025-3-28 21:18:40
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medium
发表于 2025-3-29 00:49:20
Anisotropic contributions to the transferred hyperfine field studied using a field-induced spin-reonstrate that the anisotropic contribution to B. at the Sn sites can be obtained through the moment reorientation and is independent of the driving force. We show that a complete 90° spin reorientation can be achieved at 300 K in an applied field of 0.57(3) T and that the changes in hyperfine field d
mastoid-bone
发表于 2025-3-29 07:02:34
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JADED
发表于 2025-3-29 07:27:19
, ,Fe Mössbauer spectroscopic study of (25−,)MnO-,ZnO-15Fe,O,-60B,O, glasses,10, 15 and 20 mol% of ZnO). Mössbauer absorption spectra for all the samples recorded at room temperature suggest the existence of the two paramagnetic quadrupole doublets. The observed variations in hyperfine parameters have been explained on the basis of cations distribution and exchange interacti
薄膜
发表于 2025-3-29 14:48:04
,Studying surfaces and thin films using Mössbauer spectroscopy,an be done with the same experimental set up. The penetration depths of the . and . conversion electrons are measured as 51(6) and 330(240) nm, respectively, with relative contributions of 88(9) and 12(9)%. The penetration depth of the Fe-.. X-ray signal is determined to be 3.6(2) μm. As a demonstra
incredulity
发表于 2025-3-29 19:22:29
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钱财
发表于 2025-3-29 21:16:28
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ACME
发表于 2025-3-30 03:15:29
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SKIFF
发表于 2025-3-30 04:03:41
David G. Agresti,M. Darby Dyar,Martha W. Schaeferof GW by biologically active pesticides at unacceptable levels should be avoided. A number of pesticides and their degradation products have frequently been detected in field GW monitoring programs (Cohen et al. 1984; Hancock et al. 2008; Kolpin et al. 2000). Regulatory agencies in each country are