Localized<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mn>5</mml:mn><mml:mi>f</mml:mi></mml:mrow></mml:math>antiferromagnetism in cubic<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msub><mml:mrow><mml:mtext>UIn</mml:mtext></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>:<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mtext>I</mml:mtext><mml:mprescri

Sakai, Hironori; Kambe, S.; Tokunaga, Y.; Chudo, Hiroyuki; Tokiwa, Yutaka; Aoki, Dai; Haga, Yoshinori; Ōnuki, Yoshichika; Yaśuoka, Hiroshi

doi:10.1103/physrevb.79.104426

Cited by 9 publications

(19 citation statements)

References 29 publications

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“…The Curie-Weiss behavior with μ eff = 3.25μ B /U and NMR measurements suggested localized 5f behavior at high temperatures. 29,30 Hydrostatic pressure applied to UIn 3 increases the transition temperature: T N = 88 K at ambient pressure monotonically increases with increasing pressure. 31 On the other hand, the unit cell volume of the UIn 3 block in URhIn 5 is about 2% smaller than that of UIn 3 at ambient pressure, corresponding to a chemical pressure of about 2 GPa.…”

Section: Discussionmentioning

confidence: 99%

Single-crystal growth and physical properties of URhIn5

et al. 2013

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We have grown the uranium compound URhIn 5 with the tetragonal HoCoGa 5 -type by the In self-flux method. In contrast to the nonmagnetic ground state of the isoelectronic analog URhGa 5 , URhIn 5 is an antiferromagnet with antiferromagnetic transition temperature T N = 98 K. The moderately large electronic specific heat coefficient γ = 50 mJ/K 2 mol demonstrates the contribution of 5f electrons to the conduction band. On the other hand, magnetic susceptibility in the paramagnetic state roughly follows a Curie-Weiss law with a paramagnetic effective moment corresponding to a localized uranium ion. The crossover from localized to itinerant character at low temperature may occur around the characteristic temperature 150 K where the magnetic susceptibility and electrical resistivity show a marked anomaly.

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Section: Discussionmentioning

confidence: 99%

Single-crystal growth and physical properties of URhIn5

et al. 2013

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“…115 In-NMR and NQR studies revealed that U 5f electrons have localized natures well above the Néel temperature [5]. They further suggested that a plausible ordering vector is along the 110 direction.…”

Section: Introductionmentioning

confidence: 97%

Electronic structures of UX3 ( X=Al , Ga, and In) studied by photoelectron spectroscopy

Fujimori¹,

Kobata²,

Takeda³

et al. 2017

Phys. Rev. B

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The electronic structures of UX3 (X = Al, Ga, and In) were studied by photoelectron spectroscopy to understand the the relationship between their electronic structures and magnetic properties. The band structures and Fermi surfaces of UAl3 and UGa3 were revealed experimentally by angleresolved photoelectron spectroscopy (ARPES), and they were compared with the result of bandstructure calculations. The topologies of the Fermi surfaces and the band structures of UAl3 and UGa3 were explained reasonably well by the calculation, although bands near the Fermi level (EF) were renormalized owing to the finite electron correlation effect. The topologies of the Fermi surfaces of UAl3 and UGa3 are very similar to each other, except for some minor differences. Such minor differences in their Fermi surface or electron correlation effect might take an essential role in their different magnetic properties. No significant changes were observed between the ARPES spectra of UGa3 in the paramagnetic and antiferromagnetic phases, suggesting that UGa3 is an itinerant weak antiferromagnet. The effect of chemical pressure on the electronic structures of UX3 compounds was also studied by utilizing the smaller lattice constants of UAl3 and UGa3 than that of UIn3. The valence band spectrum of UIn3 is accompanied by a satellite-like structure on the high-bindingenergy side. The core-level spectrum of UIn3 is also qualitatively different from those of UAl3 and UGa3. These findings suggest that the U 5f states in UIn3 are more localized than those in UAl3 and UGa3.

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“…In UIn 3 , the hyperfine coupling A ⊥ is experimentally obtained as 54 kOe/μ B in the PM state. 43 In this case, A ⊥ is produced mainly by four nearest-neighbor U atoms, while the A ⊥ on the In(2) sites in URhIn 5 comes from two nearest neighbors. So, assuming half of A ⊥ , the size of the ordered moment in URhIn 5 can be roughly estimated to be ∼1 μ B /U from H int = 21.1 kOe on the In(2) sites.…”

Section: Discussionmentioning

confidence: 94%

“…In the case of cubic UIn 3 with AFM propagation vector of 2π Q/a ≡ (π/a,π/a,π/a), 1/T 1 just above T N can sense a critical increase of AFM fluctuations beyond such a f 2 (q) filtering. 43 Hereafter, since f 2 (q) is not important for the following discussions, f 2 (q) is assumed to be unity for simplicity. It is noted here that the simple approximation of neglecting the q dependence of f 2 (q) is more relevant to the In(2) sites since the site symmetry is lower and hyperfine fluctuations do not vanish at any particular field orientation.…”

Section: Nuclear Relaxation Ratesmentioning

confidence: 99%

“…41 Such a constant behavior of 1/T 1 in the localized regime has been observed in the paramagnetic state of UIn 3 . 43 Since a constant behavior of (T 1 T ) −1 is clearly observed below T * ∼ 150 K, 5f electrons acquire itinerant character by hybridization with conduction electrons below T * , although the AFM enhancement factor K(α) is uncertain. Above T * , 1/T 1 for In(1) deviates downward and that for In(2) reaches a constant behavior, indicating a loss of 5f electrons' itinerancy.…”

Section: Nuclear Relaxation Ratesmentioning

confidence: 99%

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Zero-field NMR and NQR measurements of the antiferromagnet URhIn5

et al. 2013

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The antiferromagnet URhIn 5 with the Néel temperature T N = 98 K has been investigated by nuclear magnetic/quadrupole resonance (NMR/NQR). 115 In-NQR spectra in the paramagnetic state give the respective electrical field gradient parameters for the locally tetragonal and orthorhombic In(1) and In (2) sites. In the antiferromagnetic state at 4.5 K, 115 In-NMR spectra in the zero external field indicate a commensurate antiferromagnetic structure. The internal field at In(1) sites is found to be zero and that at In(2) sites is 21.1 kOe at 4.5 K. The temperature (T ) dependence of the nuclear relaxation rates 1/T 1 in the paramagnetic state shows a distinct site dependence: Korringa-type constant (T 1 T ) −1 behavior below ∼150 K for In(1) sites and a divergent behavior of 1/T 1 toward T N for In(2). The plausible antiferromagnetic structure is discussed based on these observations.

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Localized5fantiferromagnetism in cubicUIn3:I

Cited by 9 publications

References 29 publications

Single-crystal growth and physical properties of URhIn5

Single-crystal growth and physical properties of URhIn5

Electronic structures of UX3 ( X=Al , Ga, and In) studied by photoelectron spectroscopy

Zero-field NMR and NQR measurements of the antiferromagnet URhIn5

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