Experimental exploration of novel semimetal state in strong anisotropic Pyrochlore iridate Nd2Ir2O7 under high magnetic field

被引：3

作者：

Tian, Z. M. ^{[1
]}

Kohama, Y. ^{[1
]}

Tomita, T. ^{[1
]}

Ishikawa, J. ^{[1
]}

Mairo, H. ^{[1
]}

Kindo, K. ^{[1
]}

Nakatsuji, S. ^{[1
,2
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Kashiwa, Chiba 2778581, Japan

[2] Japan Sci & Technol Agcy JST, PRESTO, Kawaguchi, Saitama 3320012, Japan

来源：

TMU INTERNATIONAL SYMPOSIUM ON NEW QUANTUM PHASES EMERGING FROM NOVEL CRYSTAL STRUCTURE | 2016年 / 683卷

关键词：

D O I：

10.1088/1742-6596/683/1/012024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We report the anisotropic magnetotransport of Nd2Ir2O7 single crystal under high magnetic field (B) up to 50 T with B along various directions. Only for B // [001] direction, a novel semimetal state is realized under high magnetic field evidenced by a field-induced insulating-semimetalic phase transition with critical field B-MI similar to 12 T related to the destruction of all-in-all-out (AIAO) state. In contrast, abnormal magnetotransport hysteresis behavior is observed for B // [111] direction below the metal-insulator transition temperature (T-MI), and magnetotransport reveals the Ir spin structure keep in the AIAO state under high magnetic field with temperature just below T-MI,T- in prospect to realize Weyl semimetal state.

引用

页数：6

共 50 条

[1] Magnetic order and the electronic ground state in the pyrochlore iridate Nd2Ir2O7
Disseler, S. M.
Dhital, Chetan
Hogan, T. C.
Amato, A.
Giblin, S. R.
de la Cruz, Clarina
Daoud-Aladine, A.
Wilson, Stephen D.
Graf, M. J.
PHYSICAL REVIEW B, 2012, 85 (17)
[2] Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films
J. C. Gallagher
B. D. Esser
R. Morrow
S. R. Dunsiger
R. E. A. Williams
P. M. Woodward
D. W. McComb
F. Y. Yang
Scientific Reports, 6
[3] Epitaxial growth of iridate pyrochlore Nd2Ir2O7 films
Gallagher, J. C.
Esser, B. D.
Morrow, R.
Dunsiger, S. R.
Williams, R. E. A.
Woodward, P. M.
McComb, D. W.
Yang, F. Y.
SCIENTIFIC REPORTS, 2016, 6
[4] Magnetic Field-Induced Insulator-Semimetal Transition in a Pyrochlore Nd2Ir2O7
Ueda, K.
Fujioka, J.
Yang, B. -J.
Shiogai, J.
Tsukazaki, A.
Nakamura, S.
Awaji, S.
Nagaosa, N.
Tokura, Y.
PHYSICAL REVIEW LETTERS, 2015, 115 (05)
[5] Magnetic order in the pyrochlore iridate Nd2Ir2O7 probed by muon spin relaxation
Guo, Hanjie
Matsuhira, Kazuyuki
Kawasaki, Ikuto
Wakeshima, Makoto
Hinatsu, Yukio
Watanabe, Isao
Xu, Zhu-an
PHYSICAL REVIEW B, 2013, 88 (06):
[6] Magnetization and Hall effect studies on the pyrochlore iridate Nd2Ir2O7
Disseler, S. M.
Giblin, S. R.
Dhital, Chetan
Lukas, K. C.
Wilson, Stephen D.
Graf, M. J.
PHYSICAL REVIEW B, 2013, 87 (06):
[7] Field-induced quantum metal-insulator transition in the pyrochlore iridate Nd2Ir2O7
Tian, Zhaoming
Kohama, Yoshimitsu
Tomita, Takahiro
Ishizuka, Hiroaki
Hsieh, Timothy H.
Ishikawa, Jun J.
Kindo, Koichi
Balents, Leon
Nakatsuji, Satoru
NATURE PHYSICS, 2016, 12 (02) : 134 - +
[8] Unconventional free charge in the correlated semimetal Nd2Ir2O7
Wang, K.
Xu, B.
Rischau, C. W.
Bachar, N.
Michon, B.
Teyssier, J.
Qiu, Y.
Ohtsuki, T.
Cheng, Bing
Armitage, N. P.
Nakatsuji, S.
van Der Marel, D.
NATURE PHYSICS, 2020, 16 (12) : 1194 - 1198
[9] Unconventional free charge in the correlated semimetal Nd2Ir2O7
K. Wang
B. Xu
C. W. Rischau
N. Bachar
B. Michon
J. Teyssier
Y. Qiu
T. Ohtsuki
Bing Cheng
N. P. Armitage
S. Nakatsuji
D. van der Marel
Nature Physics, 2020, 16 : 1194 - 1198
[10] Crystalline electric field study in the pyrochlore Nd2Ir2O7 with metal-insulator transition
Watahiki, M.
Tomiyasu, K.
Matsuhira, K.
Iwasa, K.
Yokoyama, M.
Takagi, S.
Wakeshima, M.
Hinatsu, Y.
INTERNATIONAL CONFERENCE ON FRUSTRATION IN CONDENSED MATTER (ICFCM), 2011, 320

← 1 2 3 4 5 →