期刊
PHYSICAL REVIEW LETTERS
卷 112, 期 2, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.112.027202
关键词
-
资金
- U.S. Department of Energy, office of Basic Energy Sciences, Division of Material Sciences and Engineering [DE-FG02-08ER46544]
- National Science Foundation [DMR-0944772]
- U.S. Department of Energy, office of Basic Energy Sciences, Scientific User Facilities Division
Inelastic neutron scattering at low temperatures T <= 30 K from a powder of LiZn2Mo3O8 demonstrates this triangular-lattice antiferromagnet hosts collective magnetic excitations from spin-1/2 Mo3O13 molecules. Apparently gapless (Delta < 0.2 meV) and extending at least up to 2.5 meV, the low-energy magnetic scattering cross section is surprisingly broad in momentum space and involves one-third of the spins present above 100 K. The data are compatible with the presence of valence bonds involving nearest-neighbor and next-nearest-neighbor spins forming a disordered or dynamic state.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据