Effects of a magnetic field on a modulated phase

Bambi Hu; Jian Zhou

doi:10.1016/S0375-9601(96)00736-0

Effects of a magnetic field on a modulated phase

Bambi Hu^*, Jian Zhou

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › peer-review

Abstract

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 language	English
Pages (from-to)	267-272
Number of pages	6
Journal	Physics Letters A
Volume	223
Issue number	4
DOIs	https://doi.org/10.1016/S0375-9601(96)00736-0
Publication status	Published - 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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10.1016/S0375-9601(96)00736-0

Cite this

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title = "Effects of a magnetic field on a modulated phase",

abstract = "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.",

keywords = "Magnetic field, Magnetoelastic chain, Modulated phase, Phase diagrams",

author = "Bambi Hu and Jian Zhou",

note = "Funding Information: This work is supported in part by The Research Grant Council RGC/96-97/10 and the Hong Kong Baptist University Faculty Research Grant FRG/95-96/11-09a nd FRG/95-96111-92.",

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doi = "10.1016/S0375-9601(96)00736-0",

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T1 - Effects of a magnetic field on a modulated phase

AU - Hu, Bambi

AU - Zhou, Jian

N1 - Funding Information: This work is supported in part by The Research Grant Council RGC/96-97/10 and the Hong Kong Baptist University Faculty Research Grant FRG/95-96/11-09a nd FRG/95-96111-92.

PY - 1996/12/9

Y1 - 1996/12/9

N2 - 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.

AB - 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.

KW - Magnetic field

KW - Magnetoelastic chain

KW - Modulated phase

KW - Phase diagrams

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U2 - 10.1016/S0375-9601(96)00736-0

DO - 10.1016/S0375-9601(96)00736-0

M3 - Journal article

AN - SCOPUS:13544252929

SN - 0375-9601

VL - 223

SP - 267

EP - 272

JO - Physics Letters A

JF - Physics Letters A

IS - 4

ER -

Effects of a magnetic field on a modulated phase

Abstract

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