The pressure dependence of magnetization of layered perovskite oxides with 4d-electron metal

Ikeda, S.; Shirakawa, Naoki; Koiwai, S.; Uchida, A.; Kosaka, Masashi; Uwatoko, Yoshiya

doi:10.1016/s0921-4534(01)00800-0

Cited by 18 publications

(13 citation statements)

References 12 publications

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“…12 inset (i). Hydrostatic pressure and uniaxial stress drive the system away from and towards ferromagnetism, respectively (Chiao et al, 2002;Ikeda et al, 2001Ikeda et al, , 2004Wu et al, 2011). Wu et al (2011) investigated the ac susceptibility under pressure across the metamagnetic transition.…”

Section: Strontium Ruthenatesmentioning

confidence: 99%

Metallic quantum ferromagnets

et al. 2016

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We give an overview of quantum phase transitions (QPTs) in metallic ferromagnets, discussing both experimental and theoretical aspects. These QPTs can be classified with respect to the presence and strength of quenched disorder: Clean systems generically show a discontinuous, or first-order, QPT from a ferromagnetic to a paramagnetic state as a function of some control parameter, as predicted by theory. Disordered systems are much more complicated, depending on the disorder strength and the distance from the QPT. In many disordered materials the QPT is continuous, or second order, and Griffiths-phase effects coexist with QPT singularities near the transition. In other systems the transition from the ferromagnetic state at low temperatures is to a different type of long-range order, such as an antiferromagnetic or a spin-density-wave state. In still other materials a transition to a state with glass-like spin dynamics is suspected. The review provides a comprehensive discussion of the current understanding of these various transitions, and of the relation between experiment and theory.

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Section: Strontium Ruthenatesmentioning

confidence: 99%

Metallic quantum ferromagnets

et al. 2016

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“…9) However, improved technique proved that hydrostatic pressures up to 1.4 GPa do not induce magnetic ordering. 25) Therefore, considering the possibility of a pressure component that is uniaxial with respect to the ferromagnetism, we performed uniaxial pressure measurements on single-crystalline Sr 3 Ru 2 O 7 for the first time. Uniaxial pressure was found to induce paramagneticto-ferromagnetic transition at pressures over 0.1 GPa, which, for inorganic materials, is a rather low critical pressure.…”

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confidence: 99%

Uniaxial-Pressure Induced Ferromagnetism of Enhanced Paramagnetic Sr₃Ru₂O₇

et al. 2004

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We report a uniaxial pressure-dependence of magnetism in layered perovskite strontium ruthenate Sr 3 Ru 2 O 7 . By applying a relatively small uniaxial pressure, greater than 0.1 GPa normal to the RuO 2 layer, ferromagnetic ordering manifests below 80 K from the enhancedparamagnet. Magnetization at 1 kOe and 2 K becomes 100 times larger than that under ambient condition. Uniaxial pressure dependence of Curie temperature T C suggests the first order magnetic transition. Origin of this uniaxial-pressure induced ferromagnetism is discussed in terms of the rotation of RuO 6 octahedra within the RuO 2 plane.KEYWORDS: Sr3Ru2O7, Sr2RuO4, ferromagnetism, uniaxial pressure, nearly ferromagnetic metal, magnetization, structural distortion §1. IntroductionTuning the magnetism in solid state compounds via tiny perturbation is one of the central issues for strongly-correlated electron systems such as heavy-fermion (HF) intermetallic compounds.Since those materials tend to reveal the high susceptibility of the electronic properties to relatively small external pressures (≤ GPa). For instance, antiferromagnetic HF compounds (CeCu 2 Ge 2 , 1)3) ) and a ferromagnetic HF compound (UGe 2 4) ) reveal superconductivity under several GPa hydrostatic pressures, which reduce the magnetic ordering temperature towards absolute zero. Around the diminishing region, the superconductivity appears. Several GPa pressures, which is necessary to induce the superconductivity in above HF compounds, are relatively small *

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“…Sr 3 Ru 2 O 7 is an exchange-enhanced paramagnet with large Wilson ratio of B10 [4]. Pressure-induced ferromagnetism [4,5] supports the idea that Sr 3 Ru 2 O 7 is in fact on the verge of ferromagnetic instability. Meanwhile, Ca 3 Ru 2 O 7 undergoes phase transitions at T ¼ 56 and 48 K [6,7].…”

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confidence: 58%