日本語フィールド
著者:X. G. Zheng, M. Hagihala, K. Nishiyama, T. Kawae題名:Exotic antiferromagnetic transition in deformed pyrochlore lattice Ni2(OH)3Cl of atacamite-structure発表情報:Physica B 巻: 404 ページ: 677-679キーワード:Ni2(OH)3Cl; quantumn magnetism; Geometric frustration; Spin fluctuation.概要:抄録:As a part of an extensive study on the new geometric frustration series M2(OH)3X on deformed pyrochlore lattice, we have found an exotic antiferromagnetic order in atacamite-structure Ni2(OH)3Cl. Strong frustration exists in Ni2(OH)3Cl with antiferromagnetic transition below TN = 4 K. While neutron diffraction witnessed unambiguously a long-range order, there is no signature of an order as detected by SR. Instead, the detected local field is dynamically fluctuating at zero field. The present material may exemplify a novel type of antiferromagnetic order recently predicted for Heisenberg spins on pyrochlore lattice, wherein the squared Fourier amplitude orders but the amplitude itself fluctuates rapidly.英語フィールド
Author:X. G. Zheng, M. Hagihala, K. Nishiyama, T. KawaeTitle:Exotic antiferromagnetic transition in deformed pyrochlore lattice Ni2(OH)3Cl of atacamite-structureAnnouncement information:Physica B Vol: 404 Page: 677-679Keyword:Ni2(OH)3Cl; quantumn magnetism; Geometric frustration; Spin fluctuation.An abstract:As a part of an extensive study on the new geometric frustration series M2(OH)3X on deformed pyrochlore lattice, we have found an exotic antiferromagnetic order in atacamite-structure Ni2(OH)3Cl. Strong frustration exists in Ni2(OH)3Cl with antiferromagnetic transition below TN = 4 K. While neutron diffraction witnessed unambiguously a long-range order, there is no signature of an order as detected by SR. Instead, the detected local field is dynamically fluctuating at zero field. The present material may exemplify a novel type of antiferromagnetic order recently predicted for Heisenberg spins on pyrochlore lattice, wherein the squared Fourier amplitude orders but the amplitude itself fluctuates rapidly.