Hidden one-dimensional spin modulation in a three-dimensional metal

Yejun Feng; Jiyang Wang; A. Palmer; J. A. Aguiar; B. Mihaila; J. Q. Yan; P. B. Littlewood; T. F. Rosenbaum

doi:10.1038/ncomms5218

Hidden one-dimensional spin modulation in a three-dimensional metal

Yejun Feng, Jiyang Wang, A. Palmer, J. A. Aguiar, B. Mihaila, J. Q. Yan, P. B. Littlewood, T. F. Rosenbaum

Correlated Electron Materials

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11 Scopus citations

Abstract

Pressure can transform a transparent material into an opaque one, quench the moments in a magnet and force solids to flow like liquids. At 15â ‰GPa, the pressure found 500â ‰km below the earthâ ™ s surface, the semiconductors silicon and germanium superconduct. Yet, at this same pressure, we show here that the magnetism in metallic GdSi remains completely robust even as it shrinks by one-seventh of its volume. Non-resonant X-ray magnetic diffraction in a specially designed diamond anvil cell, combined with band structure calculations, reveal the stability of the incommensurate spin density wave, which can be traced to a persistently nested portion of the Fermi surface that becomes increasingly one-dimensional under pressure. A cooperative interaction between nested, itinerant spins and local magnetic moments provides the organizing principle for the modulated magnetic order, salient both for its insights into the role of topology in ordered states and its potential functionality.

Original language	English
Article number	4218
Journal	Nature Communications
Volume	5
DOIs	https://doi.org/10.1038/ncomms5218
State	Published - Jun 18 2014

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abstract = "Pressure can transform a transparent material into an opaque one, quench the moments in a magnet and force solids to flow like liquids. At 15{\^a} ‰GPa, the pressure found 500{\^a} ‰km below the earth{\^a} {\texttrademark} s surface, the semiconductors silicon and germanium superconduct. Yet, at this same pressure, we show here that the magnetism in metallic GdSi remains completely robust even as it shrinks by one-seventh of its volume. Non-resonant X-ray magnetic diffraction in a specially designed diamond anvil cell, combined with band structure calculations, reveal the stability of the incommensurate spin density wave, which can be traced to a persistently nested portion of the Fermi surface that becomes increasingly one-dimensional under pressure. A cooperative interaction between nested, itinerant spins and local magnetic moments provides the organizing principle for the modulated magnetic order, salient both for its insights into the role of topology in ordered states and its potential functionality.",

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T1 - Hidden one-dimensional spin modulation in a three-dimensional metal

AU - Feng, Yejun

AU - Wang, Jiyang

AU - Palmer, A.

AU - Aguiar, J. A.

AU - Mihaila, B.

AU - Yan, J. Q.

AU - Littlewood, P. B.

AU - Rosenbaum, T. F.

PY - 2014/6/18

Y1 - 2014/6/18

N2 - Pressure can transform a transparent material into an opaque one, quench the moments in a magnet and force solids to flow like liquids. At 15â ‰GPa, the pressure found 500â ‰km below the earthâ ™ s surface, the semiconductors silicon and germanium superconduct. Yet, at this same pressure, we show here that the magnetism in metallic GdSi remains completely robust even as it shrinks by one-seventh of its volume. Non-resonant X-ray magnetic diffraction in a specially designed diamond anvil cell, combined with band structure calculations, reveal the stability of the incommensurate spin density wave, which can be traced to a persistently nested portion of the Fermi surface that becomes increasingly one-dimensional under pressure. A cooperative interaction between nested, itinerant spins and local magnetic moments provides the organizing principle for the modulated magnetic order, salient both for its insights into the role of topology in ordered states and its potential functionality.

AB - Pressure can transform a transparent material into an opaque one, quench the moments in a magnet and force solids to flow like liquids. At 15â ‰GPa, the pressure found 500â ‰km below the earthâ ™ s surface, the semiconductors silicon and germanium superconduct. Yet, at this same pressure, we show here that the magnetism in metallic GdSi remains completely robust even as it shrinks by one-seventh of its volume. Non-resonant X-ray magnetic diffraction in a specially designed diamond anvil cell, combined with band structure calculations, reveal the stability of the incommensurate spin density wave, which can be traced to a persistently nested portion of the Fermi surface that becomes increasingly one-dimensional under pressure. A cooperative interaction between nested, itinerant spins and local magnetic moments provides the organizing principle for the modulated magnetic order, salient both for its insights into the role of topology in ordered states and its potential functionality.

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Hidden one-dimensional spin modulation in a three-dimensional metal

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