Nuclear-spin–driven resonant tunnelling of magnetisation in Mn 12 acetate

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Nuclear spin driven resonant tunnelling of magnetisation in Mn12 acetate

– Current theories still fail to give a satisfactory explanation of the observed quantum phenomena in the relaxation of the magnetisation of the molecular cluster Mn12 acetate. In the very low temperature regime, Prokof’ev and Stamp recently proposed that slowly changing dipolar fields and rapidly fluctuating hyperfine fields play a major role in the tunnelling process. By means of a faster rel...

متن کامل

Resonant Tunnelling Optoelectronic Circuits

Nowadays, most communication networks such as local area networks (LANs), metropolitan area networks (MANs), and wide area networks (WANs) have replaced or are about to replace coaxial cable or twisted copper wire with fiber optical cables. Light-wave communication systems comprise a transmitter based on a visible or near-infrared light source, whose carrier is modulated by the information sign...

متن کامل

A primer for resonant tunnelling

Resonant tunnelling is studied numerically and analytically with the help of a three-well quantum one-dimensional time-independent model. The simplest cases are considered where the three-well potential is polynomial or piecewise constant.

متن کامل

Macroscopic resonant tunnelling through Andreev interferometers.

We investigate the conductance through and the spectrum of ballistic chaotic quantum dots attached to two s-wave superconductors, as a function of the phase difference phi between the two order parameters. A combination of analytical techniques-random matrix theory, Nazarov's circuit theory and the trajectory-based semiclassical theory-allows us to explore the quantum-to-classical crossover in ...

متن کامل

Reply to the comment of Chudnovsky & Garanin on ” Spin re - laxation in Mn 12 - acetate ”

Angular momentum conservation is a physical law that must be obeyed in any closed system. However, it is well known from standard textbooks that in the case of interactions with phonons a part of the total momentum and of the total angular momentum can be absorbed by the whole crystal and is then no longer considered (cf. e.g. the Mössbauer effect[1] and the Umklapp process[2]). Therefore, ther...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Europhysics Letters (EPL)

سال: 1999

ISSN: 0295-5075,1286-4854

DOI: 10.1209/epl/i1999-00380-5