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Dynamical Ordering and Directional Locking For Particles Moving Over Quasicrystalline Substrates
Dynamical Ordering Directional Locking Quasicrystalline Substrates
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2010/11/24
We use molecular dynamics simulations to study the driven phases of particles such as vortices
or colloids moving over a decagonal quasiperiodic substrate. In the regime where the pinned states have ...
Comprehensive transport studies of anisotropy and ordering phenomena in quasi-one-dimensional (TMTTF)2X salts (X = PF6, AsF6, SbF6; BF4, ClO4, ReO4)
Comprehensive transport studies of anisotropy ordering phenomena
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2010/11/22
The temperature dependent dc resistivity of the quasi-one-dimensional organic salts (TMTTF)2X
(X = PF6, AsF6, SbF6; BF4, ClO4, ReO4) has been measured in all three crystal directions in order to inve...
Antiferromagnetic ordering in the absence of a structural distortion in Ba(Fe{1-x}Mn{x})2As2
Stripe Antiferromagnetic structural distortio
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2010/11/22
Neutron and x-ray diffraction studies of Ba(Fe1−xMnx)2As2 for low doping concentrations (x 6 0.176)reveal that at a critical concentration, 0.102 < x < 0.118, the tetragonal-to orthorhombic tran...
Effect of charge ordering on superconductivity in high-temperature superconductors
charge ordering high-temperature superconductors
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2010/11/19
It is shown that charge ordering in layered crystalline metals causes an increase in the normal
state energy of the conducting layers. If this increase in the energy exceeds the difference between th...
Pressure-temperature phase diagram of charge ordering in Nd1/2Sr1/2MnO3
Pressure-temperature phase diagram Nd1/2Sr1/2MnO3
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2010/11/17
We observe how the charge-ordering temperature TCO of Nd1/2Sr1/2MnO3 decreases with the external pressure p from 160 K at p = 0 down to 30 K at p ≃ 4.5 GPa, by measuring the
values p, T where t...
Antiferromagnetic ordering in EuPtGe$_3$ single crystal
EuPtGe3 non-centrosymmetric antiferromagnetism resistivity
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2010/11/25
Magnetic properties of single crystalline EuPtGe3, crystallizing in the non-centrosymmetric BaNiSn3-type crystal strcuture have been studied by means of magnetisation, electrical resistivity, heat cap...
Manipulation with Spin Ordering in Ferromagnetic Semiconductors
Spin Ordering Ferromagnetic Semiconductors
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2010/10/21
A short overview is given of recent advances in the field of carrier-controlled ferromagnetism in Mn-based III-V and II-VI diluted magnetic semiconductors and their nanostructures. The tailoring of do...
Ordering Due to Disorder in Frustrated Quantum Magnetic Systems
Quantum Magnetic frustrated magnetic systems
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2010/4/16
The phenomenon of order by disorder in frustrated magnetic systems is reviewed. Disorder (thermal or quantum fluctuations) may sometimes give rise to long range ordering in systems with frustration, w...