Effects of a magnetic field on a modulated phase

Bambi Hu*, Jian Zhou

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review


The effects of a magnetic field on a modulated phase are studied. A modulated phase is found to have two critical fields H1 and H2. For a large enough magnetic field, H1 and H2 can be approximated by a linear law. As a result, the minimum magnetic field needed to destroy a modulated phase is a constant. The minimum magnetic field also greatly depends on the order of a commensurate phase. A very high order commensurate phase and an incommensurate phase cannot survive a magnetic field. The behaviour of a magnetoelastic chain in a magnetic field can be described by a harmless devil's staircase. The inverse temperature is found to play a role similar to that of a special magnetic field. The deeper physics underlying these new phenomena is the breaking of the left-right symmetry of a phase diagram. As a result a controllable path to a modulated phase is found.

Original languageEnglish
Pages (from-to)267-272
Number of pages6
JournalPhysics Letters A
Issue number4
Publication statusPublished - 9 Dec 1996

Scopus Subject Areas

  • Physics and Astronomy(all)

User-Defined Keywords

  • Magnetic field
  • Magnetoelastic chain
  • Modulated phase
  • Phase diagrams


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