本篇論文將會介紹Re7B3，Re3B及ReB2的粉末在11B核磁共振的測量下所分析之結果。
　　藉由SQUID的分析下得知，Re7B3和Re3B有超導臨界溫度（TＣ）3.3K和4.9K。然而ReB2卻沒有超導特性反而在相關研究上卻指出擁有superhard的力學結構特性。
　　我們使用NMR的自旋晶格鬆弛時間1/T1（spin lattice relaxation rates）的分析研究發現Re7B3和Re3B在費米能階上的態密度主要是由B-s電子的貢獻。另一方面在ReB2實驗結果可推導出主要為B-2p電子的貢獻，並且可與類似的研究OsB2和RuB2相互比較之。
　　最終本實驗所量測之B-2p費米能階態密度能夠與理論上的能帶結構的計算之結果相互印證。

In this work, we report a study of ReB2, Re7B3, and Re3B borides by 11B nuclear magnetic resonance (NMR) measurements.
From superconducting quantum interference devices (SQUID) measurements, Re7B3 and Re3B were found to have superconductive behavior below 3.3K and 4.9K, respectively. However ReB2 shows no superconducting transition but has been reported to be a superhard material.
According to 11B spin-lattice relaxation rates (1/T1), B s-electrons are responsible for the observed T1 of Re7B3 and Re3B. On the other hand, the B p-electrons are the main source for the T1 of ReB2, similar to OsB2 and RuB2. In addition, we extracted B-2p Fermi-level DOS of ReB2 which is in good agreement with the value predicted from theoretical band structure calculations.

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