The Experts below are selected from a list of 300 Experts worldwide ranked by ideXlab platform
Abdelaziz Ammar - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, H.-j. Koo, Rodríguez-carvajal J, Alex I. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB(6), were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations. The valence bands of KB(6) are partially empty, but the electrical resistivity of KB(6) reveals that it is not a normal metal. The magnetic susceptibility as well as EPR and NMR measurements show the presence of localized electrons in KB(6). The EPR spectra of KB(6) have two peaks, a broad ( approximately 320 G) and a narrow (less than approximately 27 G) line width, and the temperature-dependence of the magnetic susceptibility of KB(6) exhibits a strong hysteresis below 70 K. The temperature-dependent Crystal Structure Determination of KB(6) shows the occurrence of an unusual variation in the unit cell parameter hence supporting that the hysteresis of the magnetic susceptibility is a bulk phenomenon. The line width DeltaH(pp) of the broad EPR signal is independent of temperature and EPR frequency. This finding indicates that the line broadening results from the dipole-dipole interaction, and the spins responsible for the broad EPR peak has the average distance of approximately 1.0 nm. To explain these apparently puzzling properties, we examined a probable mechanism of electron localization in KB(6) and its implications.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic Chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, J. Rodriguez-carvajal, H.-j. Koo, A. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB6, were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations...
A. Smirnov - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic Chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, J. Rodriguez-carvajal, H.-j. Koo, A. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB6, were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations...
Michel Ménétrier - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, H.-j. Koo, Rodríguez-carvajal J, Alex I. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB(6), were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations. The valence bands of KB(6) are partially empty, but the electrical resistivity of KB(6) reveals that it is not a normal metal. The magnetic susceptibility as well as EPR and NMR measurements show the presence of localized electrons in KB(6). The EPR spectra of KB(6) have two peaks, a broad ( approximately 320 G) and a narrow (less than approximately 27 G) line width, and the temperature-dependence of the magnetic susceptibility of KB(6) exhibits a strong hysteresis below 70 K. The temperature-dependent Crystal Structure Determination of KB(6) shows the occurrence of an unusual variation in the unit cell parameter hence supporting that the hysteresis of the magnetic susceptibility is a bulk phenomenon. The line width DeltaH(pp) of the broad EPR signal is independent of temperature and EPR frequency. This finding indicates that the line broadening results from the dipole-dipole interaction, and the spins responsible for the broad EPR peak has the average distance of approximately 1.0 nm. To explain these apparently puzzling properties, we examined a probable mechanism of electron localization in KB(6) and its implications.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic Chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, J. Rodriguez-carvajal, H.-j. Koo, A. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB6, were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations...
H.-j. Koo - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, H.-j. Koo, Rodríguez-carvajal J, Alex I. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB(6), were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations. The valence bands of KB(6) are partially empty, but the electrical resistivity of KB(6) reveals that it is not a normal metal. The magnetic susceptibility as well as EPR and NMR measurements show the presence of localized electrons in KB(6). The EPR spectra of KB(6) have two peaks, a broad ( approximately 320 G) and a narrow (less than approximately 27 G) line width, and the temperature-dependence of the magnetic susceptibility of KB(6) exhibits a strong hysteresis below 70 K. The temperature-dependent Crystal Structure Determination of KB(6) shows the occurrence of an unusual variation in the unit cell parameter hence supporting that the hysteresis of the magnetic susceptibility is a bulk phenomenon. The line width DeltaH(pp) of the broad EPR signal is independent of temperature and EPR frequency. This finding indicates that the line broadening results from the dipole-dipole interaction, and the spins responsible for the broad EPR peak has the average distance of approximately 1.0 nm. To explain these apparently puzzling properties, we examined a probable mechanism of electron localization in KB(6) and its implications.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic Chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, J. Rodriguez-carvajal, H.-j. Koo, A. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB6, were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations...
Gérard Villeneuve - One of the best experts on this subject based on the ideXlab platform.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, H.-j. Koo, Rodríguez-carvajal J, Alex I. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB(6), were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations. The valence bands of KB(6) are partially empty, but the electrical resistivity of KB(6) reveals that it is not a normal metal. The magnetic susceptibility as well as EPR and NMR measurements show the presence of localized electrons in KB(6). The EPR spectra of KB(6) have two peaks, a broad ( approximately 320 G) and a narrow (less than approximately 27 G) line width, and the temperature-dependence of the magnetic susceptibility of KB(6) exhibits a strong hysteresis below 70 K. The temperature-dependent Crystal Structure Determination of KB(6) shows the occurrence of an unusual variation in the unit cell parameter hence supporting that the hysteresis of the magnetic susceptibility is a bulk phenomenon. The line width DeltaH(pp) of the broad EPR signal is independent of temperature and EPR frequency. This finding indicates that the line broadening results from the dipole-dipole interaction, and the spins responsible for the broad EPR peak has the average distance of approximately 1.0 nm. To explain these apparently puzzling properties, we examined a probable mechanism of electron localization in KB(6) and its implications.
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Investigation of the electronic and structural properties of potassium hexaboride, KB6, by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculation
Inorganic Chemistry, 2004Co-Authors: Abdelaziz Ammar, Michel Ménétrier, Antoine Villesuzanne, Samir F. Matar, Bernard Chevalier, Jean Etourneau, Gérard Villeneuve, J. Rodriguez-carvajal, H.-j. Koo, A. SmirnovAbstract:The electronic and structural properties of potassium hexaboride, KB6, were examined by transport, magnetic susceptibility, EPR, and NMR measurements, temperature-dependent Crystal Structure Determination, and electronic band Structure calculations...