The Dresden high-magnetic field laboratory – overview and first results

Phase formation and ferrimagnetism of GdCo9Si4

“…Temperature dependent, M(T ), and isothermal magnetization, M(H ), measurements were performed in a 6 T SQUID magnetometer. High field magnetization measurements were performed at the pulsed field facility of the IFW Dresden where fields up to 60 T are available (see [13] for details of the set-up). Electrical resistivity measurements were performed (4.2-300 K) in a He-bath cryostat on bar-shaped samples applying a standard four-probe method with gold pins as voltage and current contacts.…”

“…XRD patterns of the composition range 3.6 figure 2. The lattice parameters of single-phase Gd(Co, Si) 13 are given in table 2. It is clearly seen that the substitution of Co by Si causes a shrinkage of the a lattice parameter and a slight increase of the c lattice parameter with a small total shrinkage in volume.…”

“…For other RCo 9+δ Si 4−δ with larger rare earth ions the homogeneity range is wider, in particular for LaCo 13−x Si x with the tetragonal LaFe 9 Si 4 -type structure in between x = 2-5 and cubic NaZn 13 -type structure up to binary LaCo 13 , i.e. the end of the solid solution La(Co, Si) 13 [17].…”

High field investigation on the ferrimagnetic systems GdCo9−xSi4+x(−0.2 ⩽x⩽ 0.2) and TbCo9Si4

“…The stoichiometric sample GdCo 9 Si 4 as well as the sample GdCo 8.8 Si 4.2 were essentially single phased and GdCo 9.2 Si 3.8 almost single phased with small traces (~ 2%) of Co 0.92 Si 0.08 impurities which have to be considered analysing the magnetization data. The high field investigations were performed using the high field facility of the IFW (Dresden) which was described in [10] which allows to perform magnetization measurements in an external field up to 50 T between 1.5 K and room temperature.…”

Single Pulse Calibration of Magnetic Field Sensors Using Mobile 43 kJ Facility

“…Further increase of the current in the electromagnet introduces Joule heating management issues, the setup requires the high efficacy active cooling -the size, complexity and the price of the facility are increased dramatically [4]. A common solution to generate the high pulsed magnetic fields is to discharge the high power capacitors through the inductor, which is connected as a load of the generator [5][6][7][8][9][10]. The semiconductor switches are used for the pulse forming purposes [7][8][9][10].…”