Abstract

The possibility of creating defects with spin-dependent fluorescence in a van der Waals material, namely, hexagonal boron nitride (hBN), by irradiating the latter with high-energy protons (E_P = 15 MeV) is studied. The microphotoluminescence and electron paramagnetic resonance methods show that such irradiation leads to the emergence of boron vacancies in the negatively charged state (\(V_{{\text{B}}}^{ - }\) centers), the ground triplet spin state (S = 1) of which exhibits an optically induced population inversion.

中文翻译：

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质子辐照在六方氮化硼中产生光学可寻址自旋中心

摘要

研究了通过用高能质子 ( EP ₌ 15 MeV)辐照六方氮化硼 (hBN) 在范德华材料中产生具有自旋相关荧光的缺陷的可能性。微光致发光和电子顺磁共振方法表明，这种辐照导致硼空位出现在带负电状态（\(V_{{\text{B}}}^{ - }\)中心），地面三重态自旋态( S = 1) 其中表现出光学诱导的种群反转。