Decoupling between field-instabilities of antiferromagnetism and pseudo-metamagnetism in Rh-doped CeRu 2Si 2 Kondo lattice

Dai Aoki; Carley Paulsen; Hisashi Kotegawa; Frédéric Hardy; Christoph Meingast; Pierre Haen; Mounir Boukahil; William Knafo; Eric Ressouche; Stephane Raymond; Jacques Flouquet

doi:10.1143/JPSJ.81.034711

Decoupling between field-instabilities of antiferromagnetism and pseudo-metamagnetism in Rh-doped CeRu ₂Si ₂ Kondo lattice

Dai Aoki, Carley Paulsen, Hisashi Kotegawa, Frédéric Hardy, Christoph Meingast, Pierre Haen, Mounir Boukahil, William Knafo, Eric Ressouche, Stephane Raymond, Jacques Flouquet

研究成果: Article › 査読

20 被引用数 (Scopus)

抄録

Doping Kondo lattice system CeRu ₂Si ₂ with Rh-8% (Ce(Ru _0.92Rh _0.08) ₂Si ₂) leads to drastic consequences due to the mismatch of the lattice parameters between CeRu ₂Si ₂ and CeRh ₂Si ₂. A large variety of experiments clarifies the unusual properties of the ground state induced by the magnetic field from longitudinal antiferromagnetic (AF) mode at H = 0 to polarized paramagnetic phase in very high magnetic field. The separation between AF phase, paramagnetic phase and polarized paramagnetic phase varying with temperature, magnetic field and pressure is discussed on the basis of the experiments down to very low temperature. Similarities and differences between Rh and La substituted alloys are discussed with emphasis on the competition between transverse and longitudinal AF modes, and ferromagnetic fluctuations.

本文言語	English
論文番号	034711
ジャーナル	journal of the physical society of japan
巻	81
号	3
DOI	https://doi.org/10.1143/JPSJ.81.034711
出版ステータス	Published - 2012 3月
外部発表	はい

ASJC Scopus subject areas

物理学および天文学（全般）

文献へのアクセス

10.1143/JPSJ.81.034711

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引用スタイル

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title = "Decoupling between field-instabilities of antiferromagnetism and pseudo-metamagnetism in Rh-doped CeRu 2Si 2 Kondo lattice",

abstract = "Doping Kondo lattice system CeRu 2Si 2 with Rh-8% (Ce(Ru 0.92Rh 0.08) 2Si 2) leads to drastic consequences due to the mismatch of the lattice parameters between CeRu 2Si 2 and CeRh 2Si 2. A large variety of experiments clarifies the unusual properties of the ground state induced by the magnetic field from longitudinal antiferromagnetic (AF) mode at H = 0 to polarized paramagnetic phase in very high magnetic field. The separation between AF phase, paramagnetic phase and polarized paramagnetic phase varying with temperature, magnetic field and pressure is discussed on the basis of the experiments down to very low temperature. Similarities and differences between Rh and La substituted alloys are discussed with emphasis on the competition between transverse and longitudinal AF modes, and ferromagnetic fluctuations.",

keywords = "Antiferromagnetism, CeRu Si, High pressure, La-doping, Magnetization, Neutron diffraction, Pseudo-metamagnetism, Resistivity, Rh-doping, Specific heat, Thermal expansion",

author = "Dai Aoki and Carley Paulsen and Hisashi Kotegawa and Fr{\'e}d{\'e}ric Hardy and Christoph Meingast and Pierre Haen and Mounir Boukahil and William Knafo and Eric Ressouche and Stephane Raymond and Jacques Flouquet",

year = "2012",

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doi = "10.1143/JPSJ.81.034711",

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journal = "Journal of the Physical Society of Japan",

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TY - JOUR

T1 - Decoupling between field-instabilities of antiferromagnetism and pseudo-metamagnetism in Rh-doped CeRu 2Si 2 Kondo lattice

AU - Aoki, Dai

AU - Paulsen, Carley

AU - Kotegawa, Hisashi

AU - Hardy, Frédéric

AU - Meingast, Christoph

AU - Haen, Pierre

AU - Boukahil, Mounir

AU - Knafo, William

AU - Ressouche, Eric

AU - Raymond, Stephane

AU - Flouquet, Jacques

PY - 2012/3

Y1 - 2012/3

N2 - Doping Kondo lattice system CeRu 2Si 2 with Rh-8% (Ce(Ru 0.92Rh 0.08) 2Si 2) leads to drastic consequences due to the mismatch of the lattice parameters between CeRu 2Si 2 and CeRh 2Si 2. A large variety of experiments clarifies the unusual properties of the ground state induced by the magnetic field from longitudinal antiferromagnetic (AF) mode at H = 0 to polarized paramagnetic phase in very high magnetic field. The separation between AF phase, paramagnetic phase and polarized paramagnetic phase varying with temperature, magnetic field and pressure is discussed on the basis of the experiments down to very low temperature. Similarities and differences between Rh and La substituted alloys are discussed with emphasis on the competition between transverse and longitudinal AF modes, and ferromagnetic fluctuations.

AB - Doping Kondo lattice system CeRu 2Si 2 with Rh-8% (Ce(Ru 0.92Rh 0.08) 2Si 2) leads to drastic consequences due to the mismatch of the lattice parameters between CeRu 2Si 2 and CeRh 2Si 2. A large variety of experiments clarifies the unusual properties of the ground state induced by the magnetic field from longitudinal antiferromagnetic (AF) mode at H = 0 to polarized paramagnetic phase in very high magnetic field. The separation between AF phase, paramagnetic phase and polarized paramagnetic phase varying with temperature, magnetic field and pressure is discussed on the basis of the experiments down to very low temperature. Similarities and differences between Rh and La substituted alloys are discussed with emphasis on the competition between transverse and longitudinal AF modes, and ferromagnetic fluctuations.

KW - Antiferromagnetism

KW - CeRu Si

KW - High pressure

KW - La-doping

KW - Magnetization

KW - Neutron diffraction

KW - Pseudo-metamagnetism

KW - Resistivity

KW - Rh-doping

KW - Specific heat

KW - Thermal expansion

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U2 - 10.1143/JPSJ.81.034711

DO - 10.1143/JPSJ.81.034711

M3 - Article

AN - SCOPUS:84858051167

VL - 81

JO - Journal of the Physical Society of Japan

JF - Journal of the Physical Society of Japan

SN - 0031-9015

IS - 3

M1 - 034711

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