The Energy Loss of α-Particles in Ferromagnetic Nickel at Phase Transition

U V Khadke

doi:10.1155/2016/4576194

Abstract

The energy loss (EL) of 5.486 MeV α-particles in ferromagnetic nickel foils was measured at different temperatures of the foils. The temperature of the foils was controlled and recorded using a PC-based temperature controller with an accuracy of ±0.01°C. It is observed that the energy loss in ferromagnetic nickel increases by 2–5% as the material goes from ferromagnetic to paramagnetic state. Thus our results show that the phase transition in ferromagnetic materials affects energy loss.

Highlights

The study on the phenomenon of penetration of atomic particles through matter is extremely important as they provide a valuable tool for various possible applications such as radiation damage, radiation shielding, and radiation detector development
The energy loss (EL) of high energy electrons in ferroelectric target is anomalously high at ferroelectric transition temperature Tc [1, 2]
These results indicate that there is a new mode of EL in ferroelectric materials, which is different from any of the known mechanisms of EL

Summary

Introduction

The study on the phenomenon of penetration of atomic particles through matter is extremely important as they provide a valuable tool for various possible applications such as radiation damage, radiation shielding, and radiation detector development. The energy loss (EL) of high energy electrons in ferroelectric target is anomalously high at ferroelectric transition temperature Tc [1, 2]. These results indicate that there is a new mode of EL in ferroelectric materials, which is different from any of the known mechanisms of EL. Ferromagnetic materials are analogous to ferroelectrics and exhibit a long-range ordering phenomenon at the atomic level, which causes the unpaired electron spins to line up parallel with each other in a ferromagnetic domain. As in the case of ferroelectrics, energy loss of charged particles in ferromagnetism may be affected by the ferromagnetic phase transition. In this paper we report the results obtained on the EL of 5.486 MeV α-particles in ferromagnetic nickel

Experimental Set-Up

Findings

Result and Discussion