Mössbauer effect study of the hyperfine fields and isomer shift of ordered Fe−Co alloys

1990 ◽  
Vol 60 (1-4) ◽  
pp. 757-760 ◽  
Author(s):  
J. E. Frackowiak
Keyword(s):  
Isomer Shift ◽  
Mössbauer Effect ◽  
Effect Study ◽  
Hyperfine Fields ◽  
Mossbauer Effect ◽  
Co Alloys

MÖSSBAUER EFFECT STUDY OF THE EU-Y-Ba-Cu-O SUPERCONDUCTOR

1987 ◽  
Vol 01 (02) ◽  
pp. 491-494
Author(s):  
Weiming Xu ◽  
Xiaoxiang Liu ◽  
Mingzhi Jin ◽  
Lanying He ◽  
Yifeng Wang ◽  
...  
Keyword(s):  
Isomer Shift ◽  
Mössbauer Effect ◽  
Single Phase ◽  
Hyperfine Interactions ◽  
Effect Study ◽  
X Ray Diffraction ◽  
Mossbauer Effect ◽  
X Ray ◽  
Zero Resistance ◽  
The Eu

In this work the hyperfine interactions of (EuxY1−x)0.3Ba0.1CuO3(x=0.5, 0.7, 1.0) superconductors have been studied by 151Eu Mössbauer effect. X-ray diffraction shows that the materials are of single phase. Mössbauer spectra were measured at 300K and 83K. The results show that Eu ions are in the trivalent oxidation state. The isomer shift decreases with the increasing of composition x. The electron density at the 151Eu nuclei is decreased below the zero resistance temperature.

MÖssbauer Effect Study of the Absence of Fe Magnetism in Superconducting Sc2Fe3Si5 and Th7Fe3

1980 ◽  
Vol 3 ◽  
Author(s):  
J. D. Cashion ◽  
G. K. Shenoy ◽  
D. Niarchos ◽  
P. J. Viccaro ◽  
Charles M. Falco
Keyword(s):  
Isomer Shift ◽  
Mössbauer Effect ◽  
Magnetic Behavior ◽  
Effect Study ◽  
Cooper Pairs ◽  
Mossbauer Effect ◽  
Mössbauer Measurements

ABSTRACTThere are only a few Fe-based compounds which are superconducting since the depairing of Cooper pairs is unavoidable in the presence of an Fe moment. In Sc2Fe3Si5 and Th7Fe3, Mössbauer measurements on 57Fe show that there is no magnetism at the Fe site in either compound. The isomer shift values indicate the reason behind this identical magnetic behavior to be quite different in its electronic origin.

Mössbauer Effect Study of the Hyperfine Fields at the Tin Sites in Cu2MnSn, Ni2MnSn, and Pd2MnSn

1972 ◽  
Vol 50 (3) ◽  
pp. 206-212 ◽  
Author(s):  
D. J. W. Geldart ◽  
C. C. M. Campbell ◽  
P. J. Pothier ◽  
W. Leiper
Keyword(s):  
Hyperfine Field ◽  
Mössbauer Effect ◽  
Heusler Alloys ◽  
Bound State ◽  
Current Theory ◽  
Effect Study ◽  
Hyperfine Fields ◽  
Mossbauer Effect ◽  
Correct Sign ◽  
Range Of Values

The magnitude and sign of the hyperfine field at the tin site in the Heusler alloys Cu2MnSn, Ni2MnSn, and Pd2MnSn have been measured at 77 °K by means of the Mössbauer effect and found to be + 200 ± 10 kOe, + 87 ± 3 kOe, and −35 ± 2 kOe, respectively.Saturation hyperfine fields have been calculated using the virtual bound state model for a range of values of the parameters of the model. It is found that current theory is inadequate since it does not predict even the correct sign of the hyperfine field at tin sites in Cu2MnSn and Ni2MnSn.

MÖSSBAUER EFFECT STUDY OF CATION DISTRIBUTION IN NATURAL CHROMITES

1976 ◽  
Vol 37 (C6) ◽  
pp. C6-783-C6-785 ◽  
Author(s):  
E. G. DA SILVA ◽  
A. ABRAS ◽  
A. O. R. SETTE CAMARA
Keyword(s):  
Cation Distribution ◽  
Mössbauer Effect ◽  
Effect Study ◽  
Mossbauer Effect

A MÖSSBAUER EFFECT STUDY OF THE QUADRUPOLE INTERACTION IN PARAMAGNETIC CHLORINE AND FLURINE CONTAINING β-FeOOH

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-350-C2-352 ◽  
Author(s):  
D. Chambaere ◽  
A. Govaert ◽  
E. de Grave ◽  
G. Harts ◽  
G. Robbrecht
Keyword(s):  
Quadrupole Interaction ◽  
Mössbauer Effect ◽  
Effect Study ◽  
Mossbauer Effect

MÖSSBAUER EFFECT STUDY OF OXALATO-BRIDGED Fe(II) CHAIN COMPOUNDS

1979 ◽  
Vol 40 (C2) ◽  
pp. C2-328-C2-330
Author(s):  
P. C.M. Gubbens ◽  
A. M. van der Kraan ◽  
J. A.C. van Ooijen ◽  
J. Reedijk
Keyword(s):  
Mössbauer Effect ◽  
Effect Study ◽  
Mossbauer Effect ◽  
Chain Compounds

MÖSSBAUER EFFECT STUDY OF Fe-Si MULTILAYERS

1988 ◽  
Vol 49 (C8) ◽  
pp. C8-1781-C8-1782
Author(s):  
C. Dufour ◽  
A. Bruson ◽  
B. George ◽  
G. Marchal ◽  
Ph. Mangin
Keyword(s):  
Mössbauer Effect ◽  
Effect Study ◽  
Mossbauer Effect
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