APPLICATION OF A METHOD OF FREQUENCY MODULATION MÖSSBAUER SPECTROSCOPY IN67Zn TO THE PRECISE DETERMINATION OF THE ELECTRIC QUADRUPOLE INTERACTION OF67ZnO

1974 ◽  
Vol 35 (C6) ◽  
pp. C6-197-C6-201
Author(s):  
G. J. PERLOW ◽  
W. POTZEL ◽  
R. M. KASH ◽  
H. DE WAARD
Keyword(s):  
Mössbauer Spectroscopy ◽  
Quadrupole Interaction ◽  
Frequency Modulation ◽  
Mossbauer Spectroscopy ◽  
Electric Quadrupole ◽  
Precise Determination ◽  
Electric Quadrupole Interaction ◽  
Mößbauer Spectroscopy

scholarly journals Quadrupole Interaction at Surfaces -Nuclear Methods

1994 ◽  
Vol 49 (1-2) ◽  
pp. 407-417 ◽  
Author(s):  
H. Haas
Keyword(s):  
Mössbauer Spectroscopy ◽  
Quadrupole Interaction ◽  
Mossbauer Spectroscopy ◽  
Electric Quadrupole ◽  
Electric Quadrupole Interaction ◽  
Metallic Surfaces ◽  
Stepped Surfaces ◽  
Mößbauer Spectroscopy ◽  
Field Gradients ◽  
Nuclear Techniques

Abstract The measurement of the electric quadrupole interaction with nuclear techniques allows the study of monolayer coverages or even isolated atoms at surfaces and interfaces due to the inherent sensitivity of these methods. Recently electric field gradients at surface atoms have been investigated with Mößbauer Spectroscopy, Polarized Beam NMR , and Perturbed Angular Correlation (PAC). The highly sensitive PAC technique with 111In and 111mCd sources, in particular, has been applied to several metal and semiconductor surfaces. The use of flat as well as stepped surfaces has allowed the assignment of the measured quadrupole interaction frequencies to specific surface sites. For the Pd(111) surface a particularly complete description is possible, since for five different sites (terrace adatoms, ledge adatoms, kink adatoms, ledge and terrace atoms) the field gradients and their orientation could be determined. They represent a challenging problem for understanding the electronic structure of metallic surfaces. Through the study of the temperature dependence of the different components the diffusion of the radioactive probe atoms can be followed. The data from 57Fe Mößbauer spectroscopy on iron surfaces with monolayer coverage and NMR surface studies of 7Li and 23Na at high temperatures are reviewed. An outlook for further developments of the nuclear techniques is presented, particularly in view of the variety of radioactive isotope beams available from on-line isotope separators like the ISOLDE facility at CERN.

Applications of 61Ni Mössbauer spectroscopy

1987 ◽  
Vol 65 (10) ◽  
pp. 1294-1300 ◽  
Author(s):  
C. A. McCammon
Keyword(s):  
Mössbauer Spectroscopy ◽  
Experimental Method ◽  
Mossbauer Spectroscopy ◽  
Hyperfine Interactions ◽  
Electronic Transitions ◽  
Spin Structures ◽  
Mössbauer Studies ◽  
Mößbauer Spectroscopy

The number of 61Ni Mössbauer studies, although small, indicates that definitive measurements are possible once experimental obstacles have been overcome. The experimental method and hyperfine interactions in 61Ni are discussed briefly, followed by a review of results obtained from 61Ni Mössbauer experiments during the last 10 years. The results are discussed in relation to the determination of spin structures, the study of electronic transitions, and the study of hyperfine interactions.

Accurate determination of ferric iron in garnets by bulk Mossbauer spectroscopy and synchrotron micro-XANES

2012 ◽  
Vol 97 (10) ◽  
pp. 1726-1740 ◽  
Author(s):  
M. D. Dyar ◽  
E. A. Breves ◽  
E. Emerson ◽  
S. W. Bell ◽  
M. Nelms ◽  
...  
Keyword(s):  
Mössbauer Spectroscopy ◽  
Ferric Iron ◽  
Mossbauer Spectroscopy ◽  
Accurate Determination ◽  
Mößbauer Spectroscopy

Inverse Problem in Mössbauer Spectroscopy in Case of Low-Frequency Modulation

1982 ◽  
Vol 109 (1) ◽  
pp. 131-136 ◽  
Author(s):  
G. N. Nadjaryan ◽  
R. G. Gabrielyan ◽  
A. R. Nkrtchyan ◽  
R. M. Khanamiryan
Keyword(s):  
Inverse Problem ◽  
Mössbauer Spectroscopy ◽  
Frequency Modulation ◽  
Mossbauer Spectroscopy ◽  
Low Frequency ◽  
Mößbauer Spectroscopy
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