Magnetic phase diagram of antiferroquadrupole ordering in Ho B 2 C 2

Magnetic phase diagram of antiferroquadrupole ordering in Ho B 2 C 2
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Ho B 2 C 2 反铁四极有序的磁相图

DOI:
10.1103/physrevb.71.104416
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发表时间:
2005
期刊:
影响因子:
3.7
通讯作者:
G. Kido
G. Kido
中科院分区:
物理与天体物理2区
文献类型:
--
作者:
T. Yanagisawa;T. Goto;Y. Nemoto;R. Watanuki;Kazuya Z. Suzuki;O. Suzuki;G. Kido

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通过测量沿基面和主轴的弹性常数${C}_(11)$,${C}_{44}$和${C}_(66)$,研究了四方晶系的反铁四极(AFQ)有序磁相图。筑波磁学实验室的混合磁体(GAMA)用于高场测量,最高可达30美元。在沿主轴[001]方向施加的场中,在$26.3\phantom{\Rule{0.3em}{0ex}}\mathm{T}$以上不再观察到afq相,而是沿[110]主轴施加相对较小的临界场$3.9\phantom{\Rule{0.3em}{0ex}}\mathm{T}$。${O}_{xy}和/或${O}_{2}^{2}$的四极位间相互作用与$\mathrm{Ho}{\mathrm{B}}_{2}{\mathrm{C}}_{2}$.中AFQ相的磁相图中的各向异性相一致
The magnetic phase diagram for antiferroquadrupole (AFQ) ordering in tetragonal $\mathrm{Ho}{\mathrm{B}}_{2}{\mathrm{C}}_{2}$ has been investigated by measurements of elastic constants ${C}_{11}$, ${C}_{44}$, and ${C}_{66}$ in fields along the basal $x\text{\ensuremath{-}}y$ plane as well as the principal [001]-axis. The hybrid magnet (GAMA) in Tsukuba Magnetic Laboratory was employed for high field measurements up to $30\phantom{\rule{0.3em}{0ex}}\mathrm{T}$. The AFQ phase is no longer observed above $26.3\phantom{\rule{0.3em}{0ex}}\mathrm{T}$ along the principal [001]-axis in contrast to the relatively small critical field of $3.9\phantom{\rule{0.3em}{0ex}}\mathrm{T}$ in fields applied along the basal [110]-axis. The quadrupolar intersite interaction of ${O}_{xy}$ and/or ${O}_{2}^{2}$ is consistent with the anisotropy in the magnetic phase diagram of the AFQ phase in $\mathrm{Ho}{\mathrm{B}}_{2}{\mathrm{C}}_{2}$.
DyB_2C_2 中的四极和十六极排序:通过共振 X 射线衍射直接观察
DOI: --
发表时间: 2004
期刊: Phys. Rev. B 69・2
影响因子: --
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通讯作者: 14 co-authors
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期刊: J.Phys.Soc.Jpn. 73
影响因子: --
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