Observation of lock-in phenomena in heavy-ion irradiated single crystal ofBa (Fe_<0.93>Co_<0.07>)_2As_2
Observation of lock-in phenomena in heavy-ion irradiated single crystal ofBa (Fe_<0.93>Co_<0.07>)_2As_2
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Ba(Fe_<0.93>Co_<0.07>)_2As_2单晶重离子辐照锁定现象观察
DOI：
10.1103/physrevb.89.024508
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
and Y Kanai
中科院分区：
文献类型：
--
作者：
T. Taen;H. Ygyuda;Y. Nakajima;T. Tamegai;O. Ayala-Valenzuela;L. Civale;B. Maiorov;T. Kambara;and Y Kanai
用2.6 GeV的铀辐照引入柱状缺陷（CDs），测量了最佳共掺杂bafeassa单晶磁化强度的角依赖性。在低场(H)下，我们观察到不可逆磁化对H∥cd的绕角不敏感。角范围的场依赖性与锁相跃迁的期望成正比，与锁相跃迁的期望相当一致。这表明首次观察到玻色玻璃相在铁基超导体中的指纹。
The angular dependence of magnetization was measured in an optimally Co-doped BaFeAssingle crystal, which is irradiated by 2.6 GeV uranium to introduce columnar defects (CDs). At low fields (H), we observe the irreversible magnetizationinsensitive to the anglearound H∥CDs. The field dependence of the angular rangeis proportional to, quite consistent with the expectation of the lock-in transition. This manifests the first observation of the fingerprint of the Bose glass phase in iron-based superconductors.