Current-driven vortex dynamics in untwinned YBa2Cu3O7 (2007)
W Jiang, N-c Yeh, A P Rice, F Holtzberg
superconducting single crystals
Holtzberg,F., McGuire,T. R., Penney,T., Shafer,M. W., Von Molnar,S.
The authors have explored the EuO system in detail and have correlated the chemical and physical measurements in this classic ferromagnetic semiconducting material. Furthermore, the authors have...
Holtzberg,F., McGuire,T. R., Penny,T., Shafer,M. W., Molnar,S. Von
;Contents: Relationship of crystal growth parameters to the stoichiometry of EuO, as determined by infrared and conductivity measurements; Systematics of conduction in a band tail: The EuS system;...
Holtzberg,F., Shafer,M. W., Tao,L. J., Von Molnar,S., Torrance,J. B.
The report summarizes a three year effort in the study of the synthesis of rare earth compounds and an investigation of their magnetic, optical and semiconducting properties. The development of the...
Holtzberg,F., Thompson,W. A., Torrance,J. B., Von Molnar,S.
The report summarizes research in magnetic semiconductors carried out by the authors. A list of publications and invited presentations is included, in addition to copies of the 20 publications...
Holtzberg,F., McGuire,T. R., Penney,T., Shafer,M. W., Von Molnar,S.
Considerable information has been obtained on the nature of vapor-solid equilibria in EuO, EuS and EuSe. Crystal growth experiments and Knudsen effusion with mass spectrometric analyses show that EuS...
Do columnar defects produce bulk pinning? (1999)
Indenbom, M. V., Van Der Beek, C. J., Konczykowski, M., Holtzberg, F.
From magneto-optical imaging performed on heavy-ion irradiated YBaCuO single crystals, it is found that at fields and temperatures where strong single vortex pinning by individual irradiation-induced...
Holtzberg,F., McGuire,T. R., Penney,T., Shafer,M. W., Von Molnar,S.
The report discusses the development of an understanding of the chemical equilibria involved in the synthesis and crystal growth of pure and doped europium chalcogenides. Also explored was the...
Holtzberg,F., Thompson,W. A., Torrance,J. B., Von Molnar,S.
The report summarizes research in magnetic semiconductors carried out by the authors. A list of oral presentations and publications is included. (Author)
The vortex-state Hall conductivity ([sigma][sub]xy) of YBa2Cu3O7 single crystals in the anomalous-sign-reversal region is found to be independent of the density and orientation of the correlated...
Current-driven vortex dynamics in untwinned superconducting single crystals (1997)
Jiang, W., Tombrello, T. A., Rice, A. P., Holtzberg, F.
Current-driven vortex dynamics of type-II superconductors in the weak-pinning limit is investigated by quantitatively studying the current-dependent vortex dissipation of an untwinned YBa2Cu3O7...
Jiang, W., Reed, D. S., Kriplani, U., Beam, D. A., Konczykowski, M., ...
Experimental evidence of a Bose-glass transition in the vortex state of YBa2Cu3O7 single crystals with columnar defects along the c axis is manifested by the universal critical exponents ν⊥, ν∥...
Jiang, W., Reed, D. S., Kriplani, U., Tombrello, T. A., Rice, A. P., ...
Compositionally modulated thin films of Cu and Y were prepared in an ultrahigh-vacuum dc ion-beam deposition chamber. The amorphization reaction was monitored by in situ x-ray-diffraction...
Worthington, T., Yeshurun, Y., Malozemoff, A., Yandrofski, R., Holtzberg, F., Dinger, T.
A series of noncontact magnetic measurements on high-quality single crystals of Y1Ba2Cu3O7-x indicate that the superconducting properties are those of a conventional anisotropic superconductor....
Worthington, T., Yeshurun, Y., Malozemoff, A., Yandrofski, R., Holtzberg, F., Dinger, T.
A series of noncontact magnetic measurements on high-quality single crystals of Y1Ba2Cu3O7-x indicate that the superconducting properties are those of a conventional anisotropic superconductor....
Worthington, T., Yeshurun, Y., Malozemoff, A., Yandrofski, R., Holtzberg, F., Dinger, T.
A series of noncontact magnetic measurements on high-quality single crystals of Y1Ba2Cu3O7-x indicate that the superconducting properties are those of a conventional anisotropic superconductor....
ATOMIC RELAXATION IN MIXED-VALENT SYSTEMS DEDUCED FROM EXAFS SPECTROSCOPY (1986)
Wetta, N., Krill, G., Haen, P., Lapierre, F., Ravet, M., Godart, C., ...
We will present how it is possible, from EXAFS spectroscopy, to estimate atomic relaxation effects even in homogeneous mixed valent compounds, for which these relaxations are known to be very small....
ATOMIC RELAXATION IN MIXED-VALENT SYSTEMS DEDUCED FROM EXAFS SPECTROSCOPY (1986)
Wetta, N., Krill, G., Haen, P., Lapierre, F., Ravet, M., Godart, C., ...
We will present how it is possible, from EXAFS spectroscopy, to estimate atomic relaxation effects even in homogeneous mixed valent compounds, for which these relaxations are known to be very small....
ATOMIC RELAXATION IN MIXED-VALENT SYSTEMS DEDUCED FROM EXAFS SPECTROSCOPY (1986)
Wetta, N., Krill, G., Haen, P., Lapierre, F., Ravet, M., Godart, C., ...
We will present how it is possible, from EXAFS spectroscopy, to estimate atomic relaxation effects even in homogeneous mixed valent compounds, for which these relaxations are known to be very small....
Magnetic excitations of a Heisenberg spin glass : evidence for a gap in high magnetic fields (1985)
Marcenat, C., Benoit, A., Briggs, A., Arzoumanian, C., De Goer, A.M., Holtzberg, F.
Measurements of the specific heat C(T) of a spin glass Eu 0.44Sr0.56S single crystal have been performed between 0.7 and 10 K, and with applied magnetic fields (H = 0, 4, 6 and 7 T). The application...
Magnetic excitations of a Heisenberg spin glass : evidence for a gap in high magnetic fields (1985)
Marcenat, C., Benoit, A., Briggs, A., Arzoumanian, C., De Goer, A.M., Holtzberg, F.
Measurements of the specific heat C(T) of a spin glass Eu 0.44Sr0.56S single crystal have been performed between 0.7 and 10 K, and with applied magnetic fields (H = 0, 4, 6 and 7 T). The application...
Magnetic excitations of a Heisenberg spin glass : evidence for a gap in high magnetic fields (1985)
Marcenat, C., Benoit, A., Briggs, A., Arzoumanian, C., De Goer, A.M., Holtzberg, F.
Measurements of the specific heat C(T) of a spin glass Eu 0.44Sr0.56S single crystal have been performed between 0.7 and 10 K, and with applied magnetic fields (H = 0, 4, 6 and 7 T). The application...
`1`5`5Gd Moessbauer hyperfine interactions in GdS. (1985)
Sanchez, J.P., Friedt, J.M., Tomala, K., Holtzberg, F.
Physics Letters A, 111(1985) S.83-85
Arzoumanian, C., De Goër, A.M., Salce, B., Holtzberg, F.
Thermal conductivity measurements have been carried out on a single crystal of the insulating spin glass Eu0.44Sr0.56S from 60 mK to 70 K. The thermal conductivity K was found to vary as T 2 below 3...
Arzoumanian, C., De Goër, A.M., Salce, B., Holtzberg, F.
Thermal conductivity measurements have been carried out on a single crystal of the insulating spin glass Eu0.44Sr0.56S from 60 mK to 70 K. The thermal conductivity K was found to vary as T 2 below 3...
Arzoumanian, C., De Goër, A.M., Salce, B., Holtzberg, F.
Thermal conductivity measurements have been carried out on a single crystal of the insulating spin glass Eu0.44Sr0.56S from 60 mK to 70 K. The thermal conductivity K was found to vary as T 2 below 3...
Hodges, J.A., Jéhanno, G., Debray, D., Holtzberg, F., Loewenhaupt, M.
169Tm Mössbauer absorption measurements have been made on the system TmxSe in order to investigate the variation of the local properties with stoichiometry. Five samples spanning the whole range of...
Hodges, J.A., Jéhanno, G., Debray, D., Holtzberg, F., Loewenhaupt, M.
169Tm Mössbauer absorption measurements have been made on the system TmxSe in order to investigate the variation of the local properties with stoichiometry. Five samples spanning the whole range of...
Hodges, J.A., Jéhanno, G., Debray, D., Holtzberg, F., Loewenhaupt, M.
169Tm Mössbauer absorption measurements have been made on the system TmxSe in order to investigate the variation of the local properties with stoichiometry. Five samples spanning the whole range of...
MAGNETIC PROPERTIES OF TmSe (1980)
Flouquet, J., Holtzberg, F., Papoular, M., Pena, O., Tournier, R., Vettier, C.
The magnetic properties of TmSe are discussed using recent results of neutron diffraction and magnetization under pressure. An analysis is made using a competition between exchange and a one ion...
MAGNETORESISTANCE OF Sm1-xLaxS, Sm1-xYx S AND SmS1-xAsx ALLOYS (1980)
Haen, P., Holtzberg, F., Lapierre, F., Peña, O., Penney, T., Tournier, R.
The magnetoresistance of Sm1-xLaxS, Sm1-xYxS and SmS1-xAsx alloys has been measured at 4.2 K and 1.5 K in fields up to 180 Koe. Different behaviours are observed depending on whether or not Kondo...
RESISTIVITY OF TmSe UNDER PRESSURE AT VERY LOW TEMPERATURE (1980)
Flouquet, J., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Ribault, M., ...
Resistivity measurements of a nearly stoichiometric sample up to 6 kbar and down to 25 mK are reported. For 6 kbar, the resistivity ρ rises up to 120 mΩ.cm at 30 mK whereas just above the...
MAGNETIC PROPERTIES OF TmSe (1980)
Flouquet, J., Holtzberg, F., Papoular, M., Pena, O., Tournier, R., Vettier, C.
The magnetic properties of TmSe are discussed using recent results of neutron diffraction and magnetization under pressure. An analysis is made using a competition between exchange and a one ion...
MAGNETORESISTANCE OF Sm1-xLaxS, Sm1-xYx S AND SmS1-xAsx ALLOYS (1980)
Haen, P., Holtzberg, F., Lapierre, F., Peña, O., Penney, T., Tournier, R.
The magnetoresistance of Sm1-xLaxS, Sm1-xYxS and SmS1-xAsx alloys has been measured at 4.2 K and 1.5 K in fields up to 180 Koe. Different behaviours are observed depending on whether or not Kondo...
RESISTIVITY OF TmSe UNDER PRESSURE AT VERY LOW TEMPERATURE (1980)
Flouquet, J., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Ribault, M., ...
Resistivity measurements of a nearly stoichiometric sample up to 6 kbar and down to 25 mK are reported. For 6 kbar, the resistivity ρ rises up to 120 mΩ.cm at 30 mK whereas just above the...
MAGNETIC PROPERTIES OF TmSe (1980)
Flouquet, J., Holtzberg, F., Papoular, M., Pena, O., Tournier, R., Vettier, C.
The magnetic properties of TmSe are discussed using recent results of neutron diffraction and magnetization under pressure. An analysis is made using a competition between exchange and a one ion...
MAGNETORESISTANCE OF Sm1-xLaxS, Sm1-xYx S AND SmS1-xAsx ALLOYS (1980)
Haen, P., Holtzberg, F., Lapierre, F., Peña, O., Penney, T., Tournier, R.
The magnetoresistance of Sm1-xLaxS, Sm1-xYxS and SmS1-xAsx alloys has been measured at 4.2 K and 1.5 K in fields up to 180 Koe. Different behaviours are observed depending on whether or not Kondo...
RESISTIVITY OF TmSe UNDER PRESSURE AT VERY LOW TEMPERATURE (1980)
Flouquet, J., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Ribault, M., ...
Resistivity measurements of a nearly stoichiometric sample up to 6 kbar and down to 25 mK are reported. For 6 kbar, the resistivity ρ rises up to 120 mΩ.cm at 30 mK whereas just above the...
Observation of the characteristics of Tm2+ and Tm3+ in homogeneous and inhomogeneous TmSe (1979)
Chouteau, G., Holtzberg, F., Peña, O., Penney, T., Tournier, R.
Susceptibility measurements on the TmySe system (0.79 < y < 1) are presented. Susceptibility under pressure shows no conversion of 2+ ions into 3+ ions.
One impurity effect of Tm in YSe. Kondo effect and Van Vleck behavior (1979)
Berger, A., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Penney, T., ...
Low temperature magnetization and resistivity measurements in the dilute TmxY1-xSe system show both Tm2+ and Tm3+ like behavior. However, since the results are nearly linear with concentration, they...
Valence instabilities of Tm in its compounds and solid solutions (1979)
Holtzberg, F., Penney, T., Tournier, R.
TmSe exhibits both non integral valence and antiferromagnetic order in contrast to most other intermediate valence systems which are non magnetic at low temperatures. We report on measurements of...
Observation of the characteristics of Tm2+ and Tm3+ in homogeneous and inhomogeneous TmSe (1979)
Chouteau, G., Holtzberg, F., Peña, O., Penney, T., Tournier, R.
Susceptibility measurements on the TmySe system (0.79 < y < 1) are presented. Susceptibility under pressure shows no conversion of 2+ ions into 3+ ions.
One impurity effect of Tm in YSe. Kondo effect and Van Vleck behavior (1979)
Berger, A., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Penney, T., ...
Low temperature magnetization and resistivity measurements in the dilute TmxY1-xSe system show both Tm2+ and Tm3+ like behavior. However, since the results are nearly linear with concentration, they...
Valence instabilities of Tm in its compounds and solid solutions (1979)
Holtzberg, F., Penney, T., Tournier, R.
TmSe exhibits both non integral valence and antiferromagnetic order in contrast to most other intermediate valence systems which are non magnetic at low temperatures. We report on measurements of...
Observation of the characteristics of Tm2+ and Tm3+ in homogeneous and inhomogeneous TmSe (1979)
Chouteau, G., Holtzberg, F., Peña, O., Penney, T., Tournier, R.
Susceptibility measurements on the TmySe system (0.79 < y < 1) are presented. Susceptibility under pressure shows no conversion of 2+ ions into 3+ ions.
One impurity effect of Tm in YSe. Kondo effect and Van Vleck behavior (1979)
Berger, A., Haen, P., Holtzberg, F., Lapierre, F., Mignot, J., Penney, T., ...
Low temperature magnetization and resistivity measurements in the dilute TmxY1-xSe system show both Tm2+ and Tm3+ like behavior. However, since the results are nearly linear with concentration, they...
Valence instabilities of Tm in its compounds and solid solutions (1979)
Holtzberg, F., Penney, T., Tournier, R.
TmSe exhibits both non integral valence and antiferromagnetic order in contrast to most other intermediate valence systems which are non magnetic at low temperatures. We report on measurements of...
The effect of pressure on lattice parameter, magnetic susceptibility and reflectivity of SmS. (1979)
Keller, R., Guentherodt, G., Holzapfel, W.B., Dietrich, M., Holtzberg, F.
Solid State Communications, 29(1979) S.753-58
BLOCKING OF PAIRS AND "SPIN GLASS FREEZING" IN EuxSr1-xS (1978)
Tholence, J., Holtzberg, F., Godfrin, H., Löhneysen, H., Tournier, R.
Through ac susceptibility measurements, we show for the first time, the effect of the frequency ν on the blocking temperature Tp of ferromagnetic pairs in an insulating dilute compound :...
MAGNETIC EXCITATIONS IN THE INTERMEDIATE VALENCE SYSTEM Sm0.75 Y0.25S (1978)
Mook, H., Penney, T., Holtzberg, F., Shafer, M.
Neutron inelastic scattering measurements have been made for the magnetic excitations in SmS and Sm0.75Y0.25S. The results for SmS can be understood using a simple mean-field theory, but the...
BLOCKING OF PAIRS AND "SPIN GLASS FREEZING" IN EuxSr1-xS (1978)
Tholence, J., Holtzberg, F., Godfrin, H., Löhneysen, H., Tournier, R.
Through ac susceptibility measurements, we show for the first time, the effect of the frequency ν on the blocking temperature Tp of ferromagnetic pairs in an insulating dilute compound :...
MAGNETIC EXCITATIONS IN THE INTERMEDIATE VALENCE SYSTEM Sm0.75 Y0.25S (1978)
Mook, H., Penney, T., Holtzberg, F., Shafer, M.
Neutron inelastic scattering measurements have been made for the magnetic excitations in SmS and Sm0.75Y0.25S. The results for SmS can be understood using a simple mean-field theory, but the...
BLOCKING OF PAIRS AND "SPIN GLASS FREEZING" IN EuxSr1-xS (1978)
Tholence, J., Holtzberg, F., Godfrin, H., Löhneysen, H., Tournier, R.
Through ac susceptibility measurements, we show for the first time, the effect of the frequency ν on the blocking temperature Tp of ferromagnetic pairs in an insulating dilute compound :...
MAGNETIC EXCITATIONS IN THE INTERMEDIATE VALENCE SYSTEM Sm0.75 Y0.25S (1978)
Mook, H., Penney, T., Holtzberg, F., Shafer, M.
Neutron inelastic scattering measurements have been made for the magnetic excitations in SmS and Sm0.75Y0.25S. The results for SmS can be understood using a simple mean-field theory, but the...
Phonon anomalies in yttrium sulfide. (1978)
Roedhammer, P., Reichardt, W., Holtzberg, F.
Balkanski, M.[Hrsg.]: Lattice Dynamics. Proc.of the Internat.Conf., Paris, September 5-9, 1977. Paris: Flammarion 1978. S.84-87
Phononenanomalien in den Phononendispersionen von YS und LaS. (1978)
Roedhammer, P., Reichardt, W., Holtzberg, F.
Fruehjahrstagung DPG, Festkoerperphysik, Freudenstadt, 6.-10.Maerz 1978. Verhandlungen der Deutschen Physikalischen Gesellschaft, R.6, Bd 13(1978) S.315
Soft-mode behaviour in the phonon dispersion of YS. (1978)
Roedhammer, P., Reichardt, W., Holtzberg, F.
Physical Review Letters, 40(1978) S.465-68
Investigations on the dynamics of solids and liquids. (1978)
Anderko, K., Baumann, F., Block, R., Buerkin, J., Burger, N., Christensen, A.N., ...
In: Progress Report. Teilinstitut Nukleare Festkoerperphysik. 1.6.1977-31.5.1978
Phononenanomalien in den Phononendispersionen von YS und LaS. (1978)
Roedhammer, P., Holtzberg, F., Reichardt, W.
Fruehjahrstagung DPG, Festkoerperphysik, Freudenstadt, 6.-10.Maerz 1978. Verhandlungen der Deutschen Physikalischen Gesellschaft, R.6, Bd 13(1978) S.315
Investigations on the dynamics of solids and liquids. (1977)
Block, R., Christensen, A.N., Currat, R., Daubert, J., Freyland, W., Geibel, Ch., ...
In: Progress Report of the Teilinstitut Nukleare Festkoerperphysik. 1.6.1976 - 31.5.1977. KFK-2538 (Oktober 77) S.1-46
DENSITY OF STATES EFFECTS IN ALLOYS OF SmS WITH YS AND SmAs (1976)
Von Molnar, S., Penney, T., Holtzberg, F.
This paper describes transport, specific heat, and lattice properties of the SmS-YS and SmS-SmAs systems. These materials exhibit a configurational phase transition and intermediate valence similar...
PHASE TRANSITION AND MAGNETISM IN Eu3S4 (1976)
Massenet, O., Coey, J., Holtzberg, F.
Specific heat, magnetic and Mössbauer effect measurements are reported for Eu3S4. The increase of entropy on heating through the transition at 160 K is 3.3 joules/K/mole ; it is associated with...
THE INFLUENCE OF Sm3+ IMPURITIES ON PROPERTIES OF PURE SmS AND ITS ALLOYS WITH LaS (1976)
Chouteau, G., Pena, O., Holtzberg, F., Penney, T., Tournier, R., Von Molnar, S.
Compounds similar to SmS exhibit a number of unexplained anomalies. The resistivity of SmS and the alloys Sm1-xLaxS sohw a pronounced Kondo type resistivity minimum and in several cases a Log T...
DENSITY OF STATES EFFECTS IN ALLOYS OF SmS WITH YS AND SmAs (1976)
Von Molnar, S., Penney, T., Holtzberg, F.
This paper describes transport, specific heat, and lattice properties of the SmS-YS and SmS-SmAs systems. These materials exhibit a configurational phase transition and intermediate valence similar...
PHASE TRANSITION AND MAGNETISM IN Eu3S4 (1976)
Massenet, O., Coey, J., Holtzberg, F.
Specific heat, magnetic and Mössbauer effect measurements are reported for Eu3S4. The increase of entropy on heating through the transition at 160 K is 3.3 joules/K/mole ; it is associated with...
THE INFLUENCE OF Sm3+ IMPURITIES ON PROPERTIES OF PURE SmS AND ITS ALLOYS WITH LaS (1976)
Chouteau, G., Pena, O., Holtzberg, F., Penney, T., Tournier, R., Von Molnar, S.
Compounds similar to SmS exhibit a number of unexplained anomalies. The resistivity of SmS and the alloys Sm1-xLaxS sohw a pronounced Kondo type resistivity minimum and in several cases a Log T...
DENSITY OF STATES EFFECTS IN ALLOYS OF SmS WITH YS AND SmAs (1976)
Von Molnar, S., Penney, T., Holtzberg, F.
This paper describes transport, specific heat, and lattice properties of the SmS-YS and SmS-SmAs systems. These materials exhibit a configurational phase transition and intermediate valence similar...
PHASE TRANSITION AND MAGNETISM IN Eu3S4 (1976)
Massenet, O., Coey, J., Holtzberg, F.
Specific heat, magnetic and Mössbauer effect measurements are reported for Eu3S4. The increase of entropy on heating through the transition at 160 K is 3.3 joules/K/mole ; it is associated with...
THE INFLUENCE OF Sm3+ IMPURITIES ON PROPERTIES OF PURE SmS AND ITS ALLOYS WITH LaS (1976)
Chouteau, G., Pena, O., Holtzberg, F., Penney, T., Tournier, R., Von Molnar, S.
Compounds similar to SmS exhibit a number of unexplained anomalies. The resistivity of SmS and the alloys Sm1-xLaxS sohw a pronounced Kondo type resistivity minimum and in several cases a Log T...
Budnick, J., Raj, K., Burch, T., Holtzberg, F.
The nuclear magnetic resonance of both Eu and Se nuclei have been observed in powdered EuSe and Eu Se containing approximately 1 % and 10 % GdSe. From the field dependence of the Eu resonance and the...
Budnick, J., Raj, K., Burch, T., Holtzberg, F.
The nuclear magnetic resonance of both Eu and Se nuclei have been observed in powdered EuSe and Eu Se containing approximately 1 % and 10 % GdSe. From the field dependence of the Eu resonance and the...
Budnick, J., Raj, K., Burch, T., Holtzberg, F.
The nuclear magnetic resonance of both Eu and Se nuclei have been observed in powdered EuSe and Eu Se containing approximately 1 % and 10 % GdSe. From the field dependence of the Eu resonance and the...