Zobrazeno 1 - 10
of 33
pro vyhledávání: '"Westfahl Jr., Harry"'
Autor:
Miqueles, Eduardo X., Archilha, Nathaly L., Anjos, Marcelo R. Dos, Westfahl Jr., Harry, Helou, Elias S.
It was recently shown that the phase retrieval imaging of a sample can be modeled as a simple convolution process. Sometimes, such a convolution depends on physical parameters of the sample which are difficult to estimate a priori. In this case, a bl
Externí odkaz:
http://arxiv.org/abs/1702.05092
Autor:
Santos, Thiago M., Lordano, Sérgio, Mayer, Rafael A., Volpe, Lucas, Rodrigues, Gustavo M., Meyer, Bernd, Westfahl Jr, Harry, Freitas, Raul O.
Publikováno v:
Journal of Synchrotron Radiation; May2024, Vol. 31 Issue 3, p547-556, 10p
Publikováno v:
Phys. Rev. B 78, 184201 (2008)
We investigate the connection between the transport properties and the thermodynamics of electronic systems with a tendency to form broken-symmetry mesophases evocative of the physics of liquid crystals. Through a hydrodynamic approach to the electro
Externí odkaz:
http://arxiv.org/abs/0809.3266
We have studied the dissipative dynamics of a driven electronic spin trapped in a quantum dot. We consider the dissipative mechanism as due to the indirect coupling of the electronic spin to acoustic phonons via the spin-orbit/electron-phonon couplin
Externí odkaz:
http://arxiv.org/abs/cond-mat/0703009
Publikováno v:
Phys. Rev. B 74, 144421 (2006)
We investigate the competition between the dipolar and the exchange interaction in a ferromagnetic slab with finite thickness and finite width. From an analytical approximate expression for the Ginzburg-Landau effective Hamiltonian, it is shown that,
Externí odkaz:
http://arxiv.org/abs/cond-mat/0606769
Publikováno v:
Journal of Magnetism and Magnetic Materials 312, 314 (2007)
We investigate the formation of stable one-dimensional N\'eel walls in a ferromagnetic slab with finite thickness and finite width. Taking into account the dipolar, the exchange and the uniaxial anisotropic crystalline field interactions, we derive a
Externí odkaz:
http://arxiv.org/abs/cond-mat/0605357
Autor:
Westfahl Jr., Harry, Schmalian, Joerg
We study the effect of a random Flory-Huggins parameter in a symmetric diblock copolymer melt which is expected to occur in a copolymer where one block is near its structural glass transition. In the clean limit the microphase segregation between the
Externí odkaz:
http://arxiv.org/abs/cond-mat/0501682
We present a theory for the dissipation of electronic spins trapped in quantum dots due to their coupling to the host lattice acoustic phonon modes. Based on the theory of dissipative two level systems for the spin dynamics, we derive a relation betw
Externí odkaz:
http://arxiv.org/abs/cond-mat/0311632
Publikováno v:
Phys. Rev. B 68, 134203 (2003)
We present a many body approach for non-equilibrium behavior and self-generated glassiness in strongly correlated quantum systems. It combines the dynamical mean field theory of equilibrium systems with the replica theory for classical glasses withou
Externí odkaz:
http://arxiv.org/abs/cond-mat/0202099
We show that the tendency towards microphase separation in microemulsions leads to the formation of a glassy state after sufficiently strong correlations between polar and hydrophobic regions have been established. Glassiness is predicted to occur ab
Externí odkaz:
http://arxiv.org/abs/cond-mat/0105308