Field reentrance of the hidden order state of URu2Si2 under pressure

Dai Aoki; Frédéric Bourdarot; Elena Hassinger; Georg Knebel; Atsushi Miyake; Stéphane Raymond; Valentin Taufour; Jacques Flouquet

doi:10.1143/JPSJ.78.053701

Field reentrance of the hidden order state of URu₂Si₂ under pressure

Dai Aoki, Frédéric Bourdarot, Elena Hassinger, Georg Knebel, Atsushi Miyake, Stéphane Raymond, Valentin Taufour, Jacques Flouquet

IMR - Materials Processing and Characterization Division

Commissariat à l’énergie atomique et aux énergies alternatives

Research output: Contribution to journal › Article › peer-review

34 Citations (Scopus)

Abstract

Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu₂Si ₂ reenters in magnetic field when antiferromagnetism (AF) collapses at H_AF(T). Macroscopic pressure studies of the HO-AF boundaries were realized at different pressures via thermal expansion measurements under magnetic field using a strain gauge. Microscopic proof at a given pressure is the reappearance of the resonance at Q₀ = (1,0,0) under field which is correlated with the collapse of the AF Bragg reflections at Q_o.

Original language	English
Article number	053701
Journal	Journal of the Physical Society of Japan
Volume	78
Issue number	5
DOIs	https://doi.org/10.1143/JPSJ.78.053701
Publication status	Published - 2009 May

Keywords

Electronic structure
Heavy fermion
Hidden order
Magnetism
Phase transition
URuSi

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10.1143/JPSJ.78.053701

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title = "Field reentrance of the hidden order state of URu2Si2 under pressure",

abstract = "Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu2Si 2 reenters in magnetic field when antiferromagnetism (AF) collapses at HAF(T). Macroscopic pressure studies of the HO-AF boundaries were realized at different pressures via thermal expansion measurements under magnetic field using a strain gauge. Microscopic proof at a given pressure is the reappearance of the resonance at Q0 = (1,0,0) under field which is correlated with the collapse of the AF Bragg reflections at Qo.",

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T1 - Field reentrance of the hidden order state of URu2Si2 under pressure

AU - Aoki, Dai

AU - Bourdarot, Frédéric

AU - Hassinger, Elena

AU - Knebel, Georg

AU - Miyake, Atsushi

AU - Raymond, Stéphane

AU - Taufour, Valentin

AU - Flouquet, Jacques

PY - 2009/5

Y1 - 2009/5

N2 - Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu2Si 2 reenters in magnetic field when antiferromagnetism (AF) collapses at HAF(T). Macroscopic pressure studies of the HO-AF boundaries were realized at different pressures via thermal expansion measurements under magnetic field using a strain gauge. Microscopic proof at a given pressure is the reappearance of the resonance at Q0 = (1,0,0) under field which is correlated with the collapse of the AF Bragg reflections at Qo.

AB - Combination of neutron scattering and thermal expansion measurements under pressure shows that the so-called hidden order phase of URu2Si 2 reenters in magnetic field when antiferromagnetism (AF) collapses at HAF(T). Macroscopic pressure studies of the HO-AF boundaries were realized at different pressures via thermal expansion measurements under magnetic field using a strain gauge. Microscopic proof at a given pressure is the reappearance of the resonance at Q0 = (1,0,0) under field which is correlated with the collapse of the AF Bragg reflections at Qo.

KW - Electronic structure

KW - Heavy fermion

KW - Hidden order

KW - Magnetism

KW - Phase transition

KW - URuSi

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Field reentrance of the hidden order state of URu₂Si₂ under pressure

Abstract

Keywords

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