Magnetoresistance and de Haas-van Alphen Effect in U3As4and U3P4

Inada, Yuji; Wiśniewski, Piotr; Murakawa, Masao; Aoki, Dai; Miyake, Koji; Watanabe, Noriyoshi; Haga, Yoshinori; Yamamoto, Etsuji; Ōnuki, Yoshichika

doi:10.1143/jpsj.70.558

Cited by 17 publications

(20 citation statements)

References 24 publications

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“…AMR reaches extremely large values in both compounds (-50% and 50%, respectively), but on the other hand, its temperature dependence is much different for each of them [12]. That indicates how different are their electron structures near the Fermi level (also directly confirmed by de Haas-van Alphen (dHvA) experiments [6] and by theory [4]), despite very similar crystal and magnetic structures.…”

Section: Resultsmentioning

confidence: 83%

“…However, instead of d-bands, hybridised d-f -bands have to be considered here [4][5][6]11]. AMR reaches extremely large values in both compounds (-50% and 50%, respectively), but on the other hand, its temperature dependence is much different for each of them [12].…”

Section: Resultsmentioning

confidence: 99%

“…Earlier, also U 3 P 4 has been investigated in fields up to 50 T, but transition has not been found either at 4.2 K or at 80 K [3]. Although magnetic and electronic structures of U 3 X 4 -type pnictides (X = P, As, Sb, Bi) were well characterised theoretically [4] and experimentally [5,6], the understanding of the magnetic--moment-reorientation transitions is not yet complete (e.g. questions of transition's continuity and of the resulting structure are still open) [7].…”

Section: Introductionmentioning

confidence: 99%

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High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄

et al. 2009

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Magnetisation and longitudinal magnetoresistance of single-crystal samples of two compositions: stoichiometric compound U 3 P 4 and its solid solution U 3 (P,As) 4 (with As:P ratio close to 1) were measured in pulsed magnetic fields with strength up to 47 T, and in temperatures from 4 K up to few tens of kelvins above the Curie temperatures (135 K and 181 K for both compositions, respectively). Field was always applied along a hard magnetic direction [100]. Magnetisation experiments showed no sign of expected magnetic-moment-reorientation transition and data look quantitatively similar for both compositions. On the other hand, longitudinal magnetoresistance (MR) is remarkably different for each composition. Onset of the above mentioned transition can be held responsible for broad maxima observed in MR(B) curves for U 3 (P,As) 4 . Values of magnetic field strength corresponding to these maxima follow a linear dependence on temperature. We assume that these features of MR(B) curves are due to progressive deformation of magnetic structure of U 3 (P,As) 4 in high magnetic fields.

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Section: Resultsmentioning

confidence: 83%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄

et al. 2009

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“…In this 1 work the results of measurements of AMR are shown for U 3 (P,As) 4 solid solution and of both AMR and anisotropic magneto-thermopower for U 3 Sb 4 compound.…”

Section: Introductionmentioning

confidence: 98%

“…Uranium pnictides of U 3 X 4 -series (where X = P, As, Sb and Bi) have provided numerous opportunities to observe how changing hybridization of f -electrons with conduction band influences magnetic structure [1], electron transport properties [2,3], Fermi surface (dHvA measurements) [4], magnetostriction [5][6][7] or calculated electronic band structure [8]. These observations have often been very spectacular, especially those of magnetic structures and anisotropic properties that are due to breaking the cubic symmetry when the compounds order ferromagnetically.…”

Section: Introductionmentioning

confidence: 99%

Huge Magnetostriction-Driven Anisotropy of Electron Transport Properties in Cubic Ferromagnetic Uranium Pnictides

Wiśniewski

2012

J. Phys. Soc. Jpn.

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Cubic symmetry of U 3 X 4 compounds (where X = P, As and Sb) is broken when they order ferromagnetically (at T C =138, 198 and 146 K, respectively). Macroscopic manifestations of the symmetry breaking are giant magnetostriction (found in both U 3 P 4 and U 3 As 4 , and corresponding to trigonal distortion of the crystal lattice), a huge anisotropic magnetoresistance and anisotropy of thermoelectric power observed in U 3 P 4 and U 3 As 4 . Here even larger anisotropic effects are presented for U 3 Sb 4 . Also for U 3 (P,As) 4 solid solution (ferromagnet with T C =181 K) highly anisotropic magnetoresistivity was found, intermediate between those of U 3 P 4 and U 3 As 4 . The Mott-Campbell-Fert model of anisotropic magnetoresistance provides explanation for observed properties when extended with a magnetostriction-induced mechanism modifying the density of states at Fermi level and the band polarization.

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Introduction

Kaczorowski¹,

Troć²

Landolt-Börnstein - Group III Condensed Matter

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Magnetoresistance and de Haas-van Alphen Effect in U₃As₄and U₃P₄

Cited by 17 publications

References 24 publications

High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄

High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄

Huge Magnetostriction-Driven Anisotropy of Electron Transport Properties in Cubic Ferromagnetic Uranium Pnictides

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Magnetoresistance and de Haas-van Alphen Effect in U3As4and U3P4

Cited by 17 publications

References 24 publications

High-Field Magnetisation and Magnetoresistance οf U3P4and Its Solid Solution U3(P,As)4

High-Field Magnetisation and Magnetoresistance οf U3P4and Its Solid Solution U3(P,As)4

Huge Magnetostriction-Driven Anisotropy of Electron Transport Properties in Cubic Ferromagnetic Uranium Pnictides

Introduction

Contact Info

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Resources

About

Magnetoresistance and de Haas-van Alphen Effect in U₃As₄and U₃P₄

High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄

High-Field Magnetisation and Magnetoresistance οf U₃P₄and Its Solid Solution U₃(P,As)₄