Synthesis of single crystal diamond and its applications
... geometry is both time consuming and costly. Loss of valuable material during microfabrication step. ...
... geometry is both time consuming and costly. Loss of valuable material during microfabrication step. ...
chapter1 - Shodhganga
... shells, the magnetic moments of the inner shell (the d-shell) electrons remain uncompensated. This results in each atom acting as a small magnet. In addition, within each crystal the atoms are sufficiently close and the magnetic moments of the individual atom are sufficiently strong. This leads to a ...
... shells, the magnetic moments of the inner shell (the d-shell) electrons remain uncompensated. This results in each atom acting as a small magnet. In addition, within each crystal the atoms are sufficiently close and the magnetic moments of the individual atom are sufficiently strong. This leads to a ...
Full Text - University of Arizona
... variation of the laser polarization, as well as intensity, lattice phase, etc. The earliest proposals for quantum logic in optical lattices via controlled collisions involved transport of the atoms via time-dependent rotation of the direction of a laser beam’s polarization [1,2,23]. Discrete time qu ...
... variation of the laser polarization, as well as intensity, lattice phase, etc. The earliest proposals for quantum logic in optical lattices via controlled collisions involved transport of the atoms via time-dependent rotation of the direction of a laser beam’s polarization [1,2,23]. Discrete time qu ...
X 5 Berry phase in solid state physics
... 2.1 Introducing the Berry phase Let us start from a time-independent system described by a Hamiltonian H(r, p). We denote the eigenstates by |mi and the eigenvalues byP ǫm . For simplicity, the energy levels P are assumed to be non-degenerate. An initial state |ψ0 i = am |mi evolves to a state |ψt i ...
... 2.1 Introducing the Berry phase Let us start from a time-independent system described by a Hamiltonian H(r, p). We denote the eigenstates by |mi and the eigenvalues byP ǫm . For simplicity, the energy levels P are assumed to be non-degenerate. An initial state |ψ0 i = am |mi evolves to a state |ψt i ...
Magnetic-field-induced spin crossover of Y
... the spin-state transition of Co3+ , which is the main focus of the following discussion. Second, the sudden increase and saturation of the magnetization below 10 T [27] may be attributed to the Curie paramagnetism of Pr4+ or Co4+ . The third component is the magnetization, which is proportional to t ...
... the spin-state transition of Co3+ , which is the main focus of the following discussion. Second, the sudden increase and saturation of the magnetization below 10 T [27] may be attributed to the Curie paramagnetism of Pr4+ or Co4+ . The third component is the magnetization, which is proportional to t ...
Nitrogen-vacancy center
The nitrogen-vacancy center (N-V center) is one of numerous point defects in diamond. Its most explored and useful property is photoluminescence, which can be easily detected from an individual N-V center, especially those in the negative charge state (N-V−). Electron spins at N-V centers, localized at atomic scales, can be manipulated at room temperature by applying a magnetic field, electric field, microwave radiation or light, or a combination, resulting in sharp resonances in the intensity and wavelength of the photoluminescence. These resonances can be explained in terms of electron spin related phenomena such as quantum entanglement, spin-orbit interaction and Rabi oscillations, and analysed using advanced quantum optics theory. An individual N-V center can be viewed as a basic unit of a quantum computer, and it has potential applications in novel, more efficient fields of electronics and computational science including quantum cryptography and spintronics.