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Aggregation of superparamagnetic colloids in magnetic fields: the quest for the equilibrium state
Aggregation of superparamagnetic magnetic
2010/11/25
Experimental and simulation studies of superparamagnetic colloids in strong external fields have systematically shown an irreversible aggregation process in which chains of particles steadily grow and...
Magnetization and Magnetoresistance of CeRu2Al10 under High Magnetic Fields along c-Axis
CeRu2Al10 Kondo semiconductor pulsed high magnetic field
2010/11/24
We have studied the magnetization and magnetoresistance of CeRu2Al10 in the applied magnetic field H along the c-axis up to ∼ 55 T. The magnetization M at low temperatures shows an H-linear incr...
Possible splitting of deconfinement and chiral transitions in strong magnetic fields in QCD
Possible splitting of deconfinement chiral transitions strong magnetic fields
2011/1/14
We show that finite-temperature deconfinement and chiral transitions can split in a strong enough magnetic field. The splitting in critical temperatures of these transitions in a constant magnetic fie...
Magnetometry of random AC magnetic fields using a single Nitrogen-Vacancy center
Magnetometry random AC magnetic fields single Nitrogen-Vacancy center
2010/10/21
We report on the use of a single NV center to probe fluctuating AC magnetic fields. Using engineered currents to induce random changes in the field amplitude and phase, we show that stochastic fluctua...
Effects of In-Plane Magnetic Fields on the Electronic Cyclotron Effective Mass and Landé Factor in GaAs-(Ga,Al)As Quantum Wells
Magnetic fields Quantum wells g-factor Cyclotron effective mass
2010/9/25
The dependence of the electron Land´e g-factor on carrier confinement in quantum wells recently gained both experimental and theoretical interest. The g factor of electrons in GaAs-(Ga,Al)As qua...
Investigation of the Intergrain Junctions of Polycrystalline HTSC in Rotating Weak ac Magnetic Fields
Josephson junctions rotating weak ac magnetic field even and odd harmonics
2010/4/12
YBa2Cu3Oy polycrystalline superconductor has been studied in weak rotating ac magnetic fields with existence of constant dc field. Measurements were carried out in various temperature intervals, and i...