Evidence for a dynamical ground state in the frustrated pyrohafnate Tb 2 Hf 2 O 7
Evidence for a dynamical ground state in the frustrated pyrohafnate Tb 2 Hf 2 O 7
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受挫焦铪酸盐 Tb 2 Hf 2 O 7 中动态基态的证据
DOI:
10.1103/physrevb.97.094402
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发表时间:
2018
影响因子:
3.7
通讯作者:
Anand V
中科院分区:
文献类型:
--
作者:
Anand V
We report the physical properties ofbased on ac magnetic susceptibility, dc magnetic susceptibility, isothermal magnetization, and heat capacitymeasurements combined with muon spin relaxation () and neutron powder diffraction measurements. No evidence for long-range magnetic order is found down to 0.1 K. However,data present a frequency-dependent broad peak (near 0.9 K at 16 Hz) indicating slow spin dynamics. The slow spin dynamics is further evidenced from thedata (characterized by a stretched exponential behavior) which show persistent spin fluctuations down to 0.3 K. The neutron powder diffraction data collected at 0.1 K show a broad peak of magnetic origin (diffuse scattering) but no magnetic Bragg peaks. The analysis of the diffuse scattering data reveals a dominant antiferromagnetic interaction in agreement with the negative Weiss temperature. The absence of long-range magnetic order and the presence of slow spin dynamics and persistent spin fluctuations together reflect a dynamical ground state in.
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DOI:
10.1088/0953-8984/25/45/454220
发表时间:
2013
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
J. Paddison;J. Paddison;J. R. Stewart;A. Goodwin
通讯作者:
A. Goodwin
影响因子:
3.7
作者:
Anand, V. K.;Bera, A. K.;Lake, B.
通讯作者:
Lake, B.
影响因子:
44.1
作者:
Gardner, Jason S.;Gingras, Michel J. P.;Greedan, John E.
通讯作者:
Greedan, John E.
DOI:
10.1088/0953-8984/12/40/103
发表时间:
2000
期刊:
Journal of Physics: Condensed Matter
影响因子:
--
作者:
K Matsuhira;Y Hinatsu;K Tenya;T Sakakibara
通讯作者:
T Sakakibara
影响因子:
8.6
作者:
J. Paddison;A. Goodwin
通讯作者:
A. Goodwin