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Now showing items 1-10 of 21

#### Direct evidence for singlet-triplet exciton annihilation in pi-conjugated polymers

(American Physical Society, 2002-12-06)

A blend of two conjugated polymers with different optical band gaps and different triplet exciton (TE) magnetic resonance features was studied by means of photoinduced absorption (PA) and photoluminescence detected magnetic ...

#### Exact solution of the harmonic oscillator in arbitrary dimensions with minimal length uncertainty relations

(American Physical Soc, 2002-06-15)

#### Effect of the minimal length uncertainty relation on the density of states and the cosmological constant problem

(American Physical Soc, 2002-06-15)

#### Short distance versus long distance physics: The classical limit of the minimal length uncertainty relation

(American Physical Soc, 2002-07-15)

#### Two-photon-excited green emission and its dichroic shift of oriented thin-film CdS on glass formed by laser deposition

(AIP Publishing, 2002-01)

The photoluminescence of oriented thin-film CdS on glass formed by laser deposition was investigated employing 200 fs, 1.54 eV laser pulses at room temperature. The ultrafast excitation caused a two-photon absorption ...

#### Purely imaginary eigenvalues of Zakharov-Shabat systems

(American Physical Society, 2002-03)

Zakharov-Shabat systems with single-hump and real, but not necessarily symmetric, potentials are shown to have purely imaginary eigenvalues only. Coupled with examples of double-hump potentials with nonimaginary eigenvalues, ...

#### Stationary correlations for a far-from-equilibrium spin chain

(American Physical Society, 2002-10)

A kinetic one-dimensional Ising model on a ring evolves according to a generalization of Glauber rates, such that spins at even (odd) lattice sites experience a temperature T(e) (T(o)). Detailed balance is violated so that ...

#### Nucleation of superconductivity in finite anisotropic superconductors and the evolution of surface superconductivity toward the bulk mixed state

(American Physical Society, 2002-02-14)

In anisotropic superconductors having an arbitrary orientation of the sample surface relative to the crystal principal axes, the surface critical field H-c3 is less than 1.695H(c2) unless the field is situated along one ...

#### Ferroelastic phase in SrBi2Ta2O9 and study of the ferroelectric phase-transition dynamics

(AIP Publishing, 2002-08)

Polarized microscope observation of ferroelastic domains in a SrBi2Ta2O9 (SBT) single crystal reveals the presence of domains up to T(c1)similar or equal to770 K, which supports the ferroelasticity and Amam symmetry of the ...

#### Exact solution of the harmonic oscillator in arbitrary dimensions with minimal length uncertainty relations

(American Physical Society, 2002-06-15)

We determine the energy eigenvalues and eigenfunctions of the harmonic oscillator where the coordinates and momenta are assumed to obey the modified commutation relations [(x) over cap (i),(p) over cap (j)]=i (h) over ...