Journal
ADVANCED MATERIALS
Volume 32, Issue 11, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201906578
Keywords
charge density waves; polymorphism; transition metal dichalcogenides; vanadium ditelluride
Categories
Funding
- National Research Foundation of Korea (NRF) [2019K1A3A7A09094862]
- Institute for Basic Science (IBS) in Korea [IBS-R009-G1]
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2018R1A2B2005204]
- National Research Foundation of Korea [IBS-R009-D1-2020-A00, 2018M3D1A1058793, 2018M3D1A1058754, 2018R1A2B2005204, 2019K1A3A7A09094862] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
Lattice distortion, spin interaction, and dimensional crossover in transition metal dichalcogenides (TMDs) have led to intriguing quantum phases such as charge density waves (CDWs) and 2D magnetism. However, the combined effect of many factors in TMDs, such as spin-orbit, electron-phonon, and electron-electron interactions, stabilizes a single quantum phase at a given temperature and pressure, which restricts original device operations with various quantum phases. Here, nontrivial polymorphic quantum states, CDW phases, are reported in vanadium ditelluride (VTe2) at room temperature, which is unique among various CDW systems; the doping concentration determines the formation of either of the two CDW phases in VTe2 at ambient conditions. The two CDW polymorphs show different antiferromagnetic spin orderings in which the vanadium atoms create two different stripe-patterned spin waves. First-principles calculations demonstrate that the magnetic ordering is critically coupled with the corresponding CDW in VTe2, which suggests a rich phase diagram with polymorphic spin, charge, and lattice waves all coexisting in a solid for new conceptual quantum state-switching device applications.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available