Results 301 to 310 of about 296,949 (345)
Some of the next articles are maybe not open access.
Microscopy Research and Technique, 2005
AbstractSpin‐polarized scanning tunneling microscopy has produced a great amount of images presenting magnetic contrast between different magnetic domains with an unsurpassed spatial resolution but getting values like the surface polarization has proven to be a difficult task.
Yamada, T.K. +4 more
openaire +3 more sources
AbstractSpin‐polarized scanning tunneling microscopy has produced a great amount of images presenting magnetic contrast between different magnetic domains with an unsurpassed spatial resolution but getting values like the surface polarization has proven to be a difficult task.
Yamada, T.K. +4 more
openaire +3 more sources
1986
Several ground state properties of (electron) spin-polarized deuterium (D↓) such as the energy, single quasiparticle energies and lifetimes, Landau parameters and sound velocities are evaluated. The calculations begin with the Kolos-Wolneiwicz potential and use the Galitskii-Feynman-Hartree-Fock (GFHF) approximation. The deuteron nucleas has spin I = 1,
H. R. Glyde, S. I. Hernadi
openaire +1 more source
Several ground state properties of (electron) spin-polarized deuterium (D↓) such as the energy, single quasiparticle energies and lifetimes, Landau parameters and sound velocities are evaluated. The calculations begin with the Kolos-Wolneiwicz potential and use the Galitskii-Feynman-Hartree-Fock (GFHF) approximation. The deuteron nucleas has spin I = 1,
H. R. Glyde, S. I. Hernadi
openaire +1 more source
1981
Until recently it was generally believed that all matter condenses as the temperature is reduced. With the exception of helium the condensed state is ultimately a solid. (Helium forms a liquid at 4.2 K, but resists solidification under its own vapor pressure down to absolute zero.) Now, however, it is known that one substance will remain gaseous at ...
Thomas J. Greytak +3 more
openaire +1 more source
Until recently it was generally believed that all matter condenses as the temperature is reduced. With the exception of helium the condensed state is ultimately a solid. (Helium forms a liquid at 4.2 K, but resists solidification under its own vapor pressure down to absolute zero.) Now, however, it is known that one substance will remain gaseous at ...
Thomas J. Greytak +3 more
openaire +1 more source
Spin States and Spin Polarization
2011Quantum mechanics deals with statistical statements about the result of measurements on an ensemble of states (particles, beams, targets). In other words: by giving an expectation value of operators it provides probabilitites (better: probability amplitudes) for the result of a measurement on an ensemble. Here two limiting cases can be distinguished.
openaire +1 more source
Reports on Progress in Physics, 1997
Dilute liquid - liquids offer a model system for testing theories of weakly interacting fermions. The ability to spin polarize the nuclei adds an extra dimension to the field. In this review, the extraordinary way in which the polarization of the nuclear spins can modify the macroscopic behaviour of the liquid is explained.
openaire +1 more source
Dilute liquid - liquids offer a model system for testing theories of weakly interacting fermions. The ability to spin polarize the nuclei adds an extra dimension to the field. In this review, the extraordinary way in which the polarization of the nuclear spins can modify the macroscopic behaviour of the liquid is explained.
openaire +1 more source
Physics Today, 1995
A new field that has come to be called “spin-polarized transport” is growing dramatically. Although its roots are in the quantum description of solids, only recently have new material fabrication techniques permitted widespread study of the phenomenon and the development of device applications (see figure 1).
openaire +1 more source
A new field that has come to be called “spin-polarized transport” is growing dramatically. Although its roots are in the quantum description of solids, only recently have new material fabrication techniques permitted widespread study of the phenomenon and the development of device applications (see figure 1).
openaire +1 more source
Physica Scripta, 1989
We briefly review the field of spin polarized fluids. The study of spin polarized hydrogen was initially motivated by the hope to observed a Bose–Einstein condensation in a dilute gas. This goal has not yet been reached but, on the way, a lot of beautiful physics has been done, including atom–wall interactions studies and the observation of nuclear ...
F Laloë, G Vermeulen
openaire +1 more source
We briefly review the field of spin polarized fluids. The study of spin polarized hydrogen was initially motivated by the hope to observed a Bose–Einstein condensation in a dilute gas. This goal has not yet been reached but, on the way, a lot of beautiful physics has been done, including atom–wall interactions studies and the observation of nuclear ...
F Laloë, G Vermeulen
openaire +1 more source
Physica B+C, 1984
Abstract In this paper a selection of the most important developments in low-temperature atomic hydrogen research is reviewed. We discuss the basic properties of the spin-polarized state (H↓) and the experimental techniques currently employed. We show that under appropriate conditions recombination proceeds seven orders of magnitude slower than at ...
openaire +1 more source
Abstract In this paper a selection of the most important developments in low-temperature atomic hydrogen research is reviewed. We discuss the basic properties of the spin-polarized state (H↓) and the experimental techniques currently employed. We show that under appropriate conditions recombination proceeds seven orders of magnitude slower than at ...
openaire +1 more source
1983
This communication is to be considered as an addendum to the reference (1). The purpose of that paper was to investigate, within the framework of geometric quantization a la Kostant — Souriau, the new notion of polarizer of a prequantizable symplectic manifold.
openaire +1 more source
This communication is to be considered as an addendum to the reference (1). The purpose of that paper was to investigate, within the framework of geometric quantization a la Kostant — Souriau, the new notion of polarizer of a prequantizable symplectic manifold.
openaire +1 more source