Magnetic Order and Transitions in the Spin-web Compound Cu₃TeO₆

详细信息	查看全文 | 推荐本文 |

• 作者：Martin Må ; nsson^a ; ^b ; ^{mansson@phys.ethz.ch} ; Krunoslav Prš ; a^a ; ^b ; Jun Sugiyama^c ; Daniel Andreica^d ; Hubertus Luetkens^e ; Helmuth Berger^f
• 关键词：Muon-spin relaxation/rotation(渭+SR) ; spin-web compounds ; short-range magnetic order
• 刊名：Physics Procedia
• 出版年：2012
• 期刊代码：P128_18753892
• 类别：ph
• 出版时间：2012
• 卷：30
• 期：Complete
• 页码：142-145
• 文件大小：637 K

摘要

The spin-web compound Cu₃TeO₆, belongs to an intriguing group of materials where magnetism is governed by3<em>dem>⁹ copper Cu2⁺ ions. This compound has been sparsely experimentally studied and we here present the first investigation of its local magnetic properties using muon-spin relaxation/rotation(<em>渭em>⁺SR). Our results show a clear long-range 3D magnetic order below TN as indicated by clear zero-field (ZF) muon-precessions. At T_N = 61.7K a very sharp transition is observed in the weak transverse-field (wTF) as well as ZF data. Contrary to suggestions by susceptibility measurements and inelastic neutron scattering, we find no evidence for either static or dynamic (on the time-scale of <em>渭em>⁺SR) spin-correlations above T_N.