A thorough understanding of the magnetocaloric properties of existing magnetic refrigerant materials has been an important issue in magnetic refrigeration technology. This paper reviews a new class of magnetocaloric material, that is, the ferromagnetic perovskite manganites (R1 xMxMnO3, where R 1⁄4 La, Nd, Pr and M 1⁄4 Ca, Sr, Ba, etc.). The nature of these materials with respect to their magne...

Magnetic nanoand microparticles have already found many important applications in various areas of biosciences, medicine, biotechnology, environmental technology etc. These smart materials exhibit different types of response to external magnetic field. In most cases they can be described as composite materials, where the magnetic properties are caused by the presence of iron oxides nanoor micro...

Accurate scanning probing of magnetic materials at the nanoscale is essential for developing and characterizing magnetic nanostructures, yet quantitative analysis is difficult using the state of the art magnetic force microscopy, and has limited spatial resolution and sensitivity. In this communication, we develop a novel piezomagnetic force microscopy (PmFM) technique, with the imaging princip...

Nanotechnology is a fast-growing area, involving the fabrication and use of nano-sized materials and devices. Various nanocomposite materials play a number of important roles in modern science and technology. Magnetic and fluorescent inorganic nanoparticles are of particular importance due to their broad range of potential applications. It is expected that the combination of magnetic and fluore...

This article provides a brief overview of advanced magnetic X-ray spectro-microscopies that are widely used in characterizing mesoscopic materials. Common to those techniques various dichroism effects as contrast mechanism. A particular interest is use image the underlying microscopic spin structures materials with high spatial resolution and ultimately resolve their full 3D mesoscale character...

Magnetic refrigerant materials are one of the key factors for governing cooling performance magnetic refrigeration systems. In particular, not only physical properties such as magnetocaloric effects, but also practical form material crucial importance to active regenerative （AMRR）. this JST-mirai project, development several types that show large effects in temperature range from 20 K 80 and fa...