Persistent nonequilibrium dynamics of the thermal energies in the spin and phonon systems of an antiferromagnet.
Persistent nonequilibrium dynamics of the thermal energies in the spin and phonon systems of an antiferromagnet.
复制标题
抗铁磁铁的自旋和声子系统中热能的持续非平衡动力学。
DOI:
10.1063/1.4961253
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发表时间:
2016-09
期刊:
影响因子:
--
通讯作者:
Bargheer M
中科院分区:
文献类型:
--
作者:
von Reppert A;Pudell J;Koc A;Reinhardt M;Leitenberger W;Dumesnil K;Zamponi F;Bargheer M
We present a temperature and fluence dependent Ultrafast X-Ray Diffraction study of a laser-heated antiferromagnetic dysprosium thin film. The loss of antiferromagnetic order is evidenced by a pronounced lattice contraction. We devise a method to determine the energy flow between the phonon and spin system from calibrated Bragg peak positions in thermal equilibrium. Reestablishing the magnetic order is much slower than the cooling of the lattice, especially around the Néel temperature. Despite the pronounced magnetostriction, the transfer of energy from the spin system to the phonons in Dy is slow after the spin-order is lost.
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影响因子:
16.6
作者:
Frietsch B;Bowlan J;Carley R;Teichmann M;Wienholdt S;Hinzke D;Nowak U;Carva K;Oppeneer PM;Weinelt M
通讯作者:
Weinelt M
影响因子:
8.6
作者:
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通讯作者:
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影响因子:
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通讯作者:
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DOI:
10.1073/pnas.1201371109
发表时间:
2012-03-27
影响因子:
11.1
作者:
Mathias, Stefan;La-O-Vorakiat, Chan;Kapteyn, Henry C.
通讯作者:
Kapteyn, Henry C.
影响因子:
3.7
作者:
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通讯作者:
Chubykalo-Fesenko, O.