Abstract Numerical study on tunneling splitting in biaxial spin systems is done by performing diagonalization of the Hamilton operator. It is found that the calculated energy splitting agrees quantitatively with theoretical prediction of instanton method. Our result shows that both the instanton method and the large spin limit work well for the total spin around 10. By including the fourth-order term in Hamiltonian, experimental observation can be re-covered quantitatively.
Received: 10 March 2000
Revised: 06 July 2000
Accepted manuscript online:
PACS:
03.65.Xp
(Tunneling, traversal time, quantum Zeno dynamics)
Fund: Project supported by Guangdong provincial Natural Science Foundation of China (Gront No. 994496).
Cite this article:
Chen Zhi-de (陈芝得), Zhang Shu-qun (张树群) NUMERICAL STUDY ON TUNNELING SPLITTING IN BIAIXAL SPIN SYSTEMS 2000 Chinese Physics 9 848
Altmetric calculates a score based on the online attention an article receives. Each coloured thread in the circle represents a different type of online attention. The number in the centre is the Altmetric score. Social media and mainstream news media are the main sources that calculate the score. Reference managers such as Mendeley are also tracked but do not contribute to the score. Older articles often score higher because they have had more time to get noticed. To account for this, Altmetric has included the context data for other articles of a similar age.
