BAND-STRUCTURE FOR NEUTRAL MAGNETIC DIPOLES IN A PERIODIC MAGNETIC-FIELD - A SIMPLE SPIN POLARIZER

被引：13

作者：

BARUT, AO ^{[1
]}

DOWLING, JP ^{[1
]}

机构：

[1] USA,MISSILE COMMAND,CTR RES DEV & ENGN,WEAPONS SCI DIRECTORATE,AMSMI RD WS ST,REDSTONE ARSENAL,AL 35898

来源：

PHYSICAL REVIEW LETTERS | 1992年 / 68卷 / 24期

关键词：

D O I：

10.1103/PhysRevLett.68.3571

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The solution to the Pauli spinor equation for a neutral magnetic dipole in a periodic magnetic field gives rise to an energy band structure as a consequence of Bloch's theorem. Since the two spin components see differing potentials, it is possible to arrange the magnetic field so that only the kinetic energy corresponding to one spin component is in a band while that of the other is in a band gap. Only one component from an incident beam would propagate through the oscillating field while the other would be completely reflected. Hence, a very efficient polarizing filter is obtained.

引用

页码：3571 / 3574

页数：4

共 17 条

[1] SPATIAL SPIN-RESONANCE OF POLARIZED NEUTRONS - A TUNABLE SLOW-NEUTRON FILTER [J].