Ordered CoNiP nanowires with the same length of 4 µm and varying diameters (d = 100 nm-600 nm) were fabricated by electrodeposition of CoNiP onto polycarbonate templates. X-ray diffraction, scanning electron microscopy, and high-resolution transmission electron microscopy confirmed the quality of the fabricated nanowires. Magnetic measurements and theoretical analysis revealed that the magnetiz...

SrCu2(BO3)2 is a low-dimensional antiferromagnetic compound that has undergone many different magnetization studies; however, to date none have addressed the temperature dependence of the magnetization. Measuring this sample’s magnetism versus magnetic field at varying temperatures will provide insight into its quantum mechanical nature and help strengthen or refute the current theory. This exp...

We have performed precise dc magnetization measurements for a single crystal of UBe(13) down to 0.14 K, up to 80 kOe. We observed a magnetic anomaly in the superconducting (SC) mixed state at a field, named H(Mag)(*) (~ 26 kOe, at 0.14 K), implying that UBe(13) has a magnetically unusual SC state. We studied the magnetization curves of UBe(13), assuming that the H(Mag)(*) anomaly originates fro...

Magnetization measurements of B2-structure CoZr after high-energy ball milling have been performed at 4.2 K in the Amsterdam High Field Installation in fields up to 35 T. It turns out that the magnetic behavior of the ball-milled CoZr is drastically different from the unmilled sample. The magnetization at 21 T increases abruptly in the early state of milling due to the introduction of anti-site...

High-precision dc magnetization measurements have been made on Cu(C4H4N2) (NO3)2 in magnetic fields up to 14.7 T, slightly above the saturation field Hs=13.97  T, in the temperature range from 0.08 to 15 K. The magnetization curve and differential susceptibility at the lowest temperature show excellent agreement with exact theoretical results for the spin-1/2 Heisenberg antiferromagnet in one d...

We study spin and charge currents pumped by precessing magnetization of a single ferromagnetic layer within F I N or F I F F-ferromagnet; I-insulator; N-normal metal multilayers of nanoscale thickness attached to two normal-metal electrodes with no applied bias voltage between them. Both simple one-dimensional model, consisting of a single precessing spin and a potential barrier as the “sample,...

The transfer of spin angular momentum to a nanomagnet from a spin polarized current provides an efficient means of controlling the magnetization direction in nanomagnets. A unique consequence of this spin torque is that the spontaneous oscillations of the magnetization can be induced by applying a combination of a dc bias current and a magnetic field. Here we experimentally demonstrate a differ...

A ferromagnet can resonantly absorb rf radiation to sustain a steady precession of the magnetization around an internal or applied magnetic field. We show that, under these ferromagnetic resonance conditions, a dc voltage is generated at a normal-metal electric contact to a ferromagnet with spin-flip scattering. The spin dynamics in the nonmagnetic region is accounted for by a frequency-depende...

This work presents a study of structural and magnetic properties of the Ba2Cu3O4Cl2 (Ba2342) compound. Doped samples with K or Sr in the Ba site and Zn or Mg in the Cu site of the Ba2342 were prepared using a solid state di usion method. They were characterized by X-ray powder di ractometry, scanning electron microscopy and dc-magnetization. Samples with Ba2342 composition presented tetragonal ...

Electron spin resonance (ESR) and dc-magnetization experiments have been performed in Gd-doped amorphous (a-)silicon lms. The lms were deposited by the cosputtering technique following di erent conditions rendering samples with varying Gd and hydrogen concentrations. In addition to lms with di erent contents of impurities and, in order to probe the in uence of the atomic structure on the magnet...