2016
DOI: 10.1103/physrevb.93.104422
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Influence of hydrostatic pressure on the bulk magnetic properties ofEu2Ir2O7

Abstract: We report on the magnetic properties of Eu2Ir2O7 upon the application of hydrostatic pressure P by means of macroscopic and local-probe techniques. In contrast to previously reported resistivity measurements, our dc magnetization data unambiguously demonstrate a non-monotonic P -dependence for TN , i. e., the critical transition temperature to the magnetic phase. More strikingly, we closely reproduce the recently calculated behaviour for TN under the assumption that P lowers the U/W ratio (i. e., Coulomb repul… Show more

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Cited by 16 publications
(24 citation statements)
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“…2a, we show the temperature dependence of χ for 0 ≤ x ≤ 0.1. The transition to the AIAO state is marked by a cusp in the ZFC data below which the ZFC and FC branches bifurcate in agreement with previous reports [9,[21][22][23]. We note that in the anomalous doping range, the rate of change of T N is rather slow (∆T N /T N ≤ 0.05) and the qualitative behavior of χ(T ) remains unchanged suggesting that the ground state of EIO is preserved at least up to x = 0.035.…”
supporting
confidence: 91%
“…2a, we show the temperature dependence of χ for 0 ≤ x ≤ 0.1. The transition to the AIAO state is marked by a cusp in the ZFC data below which the ZFC and FC branches bifurcate in agreement with previous reports [9,[21][22][23]. We note that in the anomalous doping range, the rate of change of T N is rather slow (∆T N /T N ≤ 0.05) and the qualitative behavior of χ(T ) remains unchanged suggesting that the ground state of EIO is preserved at least up to x = 0.035.…”
supporting
confidence: 91%
“…Aligned with this original motivation, many interesting phases and phenomena, including topological Mott insulator, axion insulator, Weyl semimetal, Luttinger-Abrikosov-Beneslavskii non-Fermi liquid, et al, have been proposed [11][12][13][14][15][16][17][18][19][20][21] . Despite the fruitful achievements since the original motivation [22][23][24][25][26][27][28][29] , the role of the rare-earth local moments in this system has not been extensively studied except few works 16,17,30 . Recent experiments 31,32 in Nd 2 Ir 2 O 7 and Pr 2 Ir 2 O 7 do suggest the importance of the local moments and the coupling between the local moments and the Ir conduction electrons.…”
Section: Introductionmentioning
confidence: 99%
“…While on the other hand, the SOC is still far away from the limit where the low energy physics can be entirely determined within the subspace with a fixed total angular momentum. In fact, the SOC strength in these compounds is comparable with that of the crystal field so that the magnetic orders there can involve multiple total angular momentum states.The pyrochlore iridates [4,5] are typical 5d transition metal compounds with many novel properties already being discussed extensively in the literatures, including the non-collinear magnetic order [6][7][8][9][10][11][12], the metal-insulator transition [13][14][15][16][17][18][19][20], anomalous Hall effect [21-23], topological insulator and Weyl semimetal phase [3,6,7,15,[24][25][26][27][28][29][30][31], and the chiral metallic states in the domain wall [32][33][34]. Among them, the magnetic order is the most fundamental one which determines most of the electronic properties.…”
mentioning
confidence: 99%