Stern-Gerlach spin filter using surface acoustic waves

Paulo V. Santos, Junsaku Nitta, Klaus H. Ploog

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


We propose the ambipolar carrier transport by surface acoustic waves (SAWs) in a semiconductor quantum well (QW) for the realization of the Stern-Gerlach (SG) experiment in the solid phase. The well-defined and very low carrier velocity in the moving SAW field leads to a large deflection angle and thus to efficient spin separation, even for the weak field gradients and short (μm-long) interaction lengths that can be produced by micromagnets. The feasibility of a SG spin filter is discussed for different QW materials.

Original languageEnglish
Pages (from-to)631-634
Number of pages4
JournalSolid State Communications
Issue number9
Publication statusPublished - 2004 Dec 1
Externally publishedYes


  • A. Quantum wells
  • D. Electronic transport
  • D. Piezoelectricity, electrostriction
  • D. Spin dynamics

ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry


Dive into the research topics of 'Stern-Gerlach spin filter using surface acoustic waves'. Together they form a unique fingerprint.

Cite this