Superparamagnetic ultrathin films
نویسندگان
چکیده
منابع مشابه
Polarization switching dynamics governed by the thermodynamic nucleation process in ultrathin ferroelectric films.
In most ferroelectrics, the domain nucleation barrier (U*) is thermally insurmountable; this is called "Landauer's paradox." However, we showed that, in ultrathin films, the large depolarization fields could lower U* to a level comparable to thermal energy (k(B)T), resulting in power-law decay of polarization. We empirically found a universal relation between the power-law decay exponent and U*...
متن کاملInterface magnetic properties of epitaxial Fe-InAs heterostructures
The growth and interface magnetic properties of epitaxial Fe films grown on InAs (100)-4 2 have been studied using low-energy electron diffraction, in situ magneto-optical Kerr effect, and X-ray magnetic circular dichronism. The magnetic properties at room temperature were found to proceed via three phases with thickness; a nonmagnetic phase, a superparamagnetic phase, and a ferromagnetic phase...
متن کاملMolecular Mobility and Confined Plasticity in NEMS Applications
Many modern and future technological applications involve ultrathin polymer films with a thickness below the 100-nanometer scale, where statistical bulk averaging is jeopardized and interfacial constraints dictate transport properties. In such confined polymeric systems, transport properties strongly depend on molecular relaxation and structural phases that deviate from the bulk. This is partic...
متن کاملProfessional Expertise Research Fields of Interest Education
His professional expertise encompasses electrical and electronic materials, electronic devices, organic ultrathin films, organic devices, and molecular electronics. His current research subjects are (1) fabrication and evaluation of organic ultrathin films, (2) optical and electrical properties of organic ultrathin films, (3) functional design and control of organized molecular ultrathin films,...
متن کاملUltrathin Ferroelectric Films: Growth, Characterization, Physics and Applications
Ultrathin ferroelectric films are of increasing interests these years, owing to the need of device miniaturization and their wide spectrum of appealing properties. Recent advanced deposition methods and characterization techniques have largely broadened the scope of experimental researches of ultrathin ferroelectric films, pushing intensive property study and promising device applications. This...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2017