Magnetic field tuning of valley population in the Weyl phase of Nd2Ir2 O7

The frustrated magnet Nd2Ir2O7, where strong correlations together with spin-orbit coupling play a crucial role, is predicted to be a Weyl semimetal and to host topological pairs of bulk Dirac-like valleys. Here we use an external magnetic field to manipulate the localized rare-earth 4f moments coup...

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Bibliographic Details
Main Authors: Kapon, I. (Author), Michon, B. (Author), Nakatsuji, S. (Author), Rischau, C.W (Author), Van Der Marel, D. (Author), Wang, K. (Author), Xu, B. (Author), Yang, Q. (Author)
Format: Article
Language:English
Published: American Physical Society 2022
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Online Access:View Fulltext in Publisher
LEADER 01852nam a2200397Ia 4500
001 10.1103-PhysRevResearch.4.023056
008 220510s2022 CNT 000 0 und d
020 |a 26431564 (ISSN) 
245 1 0 |a Magnetic field tuning of valley population in the Weyl phase of Nd2Ir2 O7 
260 0 |b American Physical Society  |c 2022 
856 |z View Fulltext in Publisher  |u https://doi.org/10.1103/PhysRevResearch.4.023056 
520 3 |a The frustrated magnet Nd2Ir2O7, where strong correlations together with spin-orbit coupling play a crucial role, is predicted to be a Weyl semimetal and to host topological pairs of bulk Dirac-like valleys. Here we use an external magnetic field to manipulate the localized rare-earth 4f moments coupled to the 5d electronic bands. Low-energy optical spectroscopy reveals that a field of only a few teslas suffices to create charge-compensating pockets of holes and electrons in different regions of momentum space, thus introducing a valley population shift that can be tuned with the field. © 2022 authors. Published by the American Physical Society. 
650 0 4 |a Binary alloys 
650 0 4 |a Electronic band 
650 0 4 |a External magnetic field 
650 0 4 |a Frustrated magnet 
650 0 4 |a Landforms 
650 0 4 |a Localised 
650 0 4 |a Lower energies 
650 0 4 |a Magnetic fields 
650 0 4 |a Magnetic-field 
650 0 4 |a Optical spectroscopy 
650 0 4 |a Orbits 
650 0 4 |a Rare earths 
650 0 4 |a Rare-earths 
650 0 4 |a Spin-orbit couplings 
650 0 4 |a Strong correlation 
700 1 |a Kapon, I.  |e author 
700 1 |a Michon, B.  |e author 
700 1 |a Nakatsuji, S.  |e author 
700 1 |a Rischau, C.W.  |e author 
700 1 |a Van Der Marel, D.  |e author 
700 1 |a Wang, K.  |e author 
700 1 |a Xu, B.  |e author 
700 1 |a Yang, Q.  |e author 
773 |t Physical Review Research