| 词条 | Germanium-vacancy center in diamond |
| 释义 |
The germanium-vacancy center (Ge-V) is an optically active defect in diamond, which can be created by doping germanium into diamond during its growth or by implanting germanium ions into diamond after its growth. Its properties are similar to those of the silicon-vacancy center in diamond (SiV). Ge-V can behave as a single-photon source and shows potential for quantum and nanoscience applications due to its narrow zero-phonon line (ZPL) and minimal phononic-sideband (compared to that of the nitrogen-vacancy center (NV).[1] PropertiesGe-V is predicted to consist of one germanium atom situated between two adjacent lattice vacancies and have the same D3d point group symmetry as SiV. It has a single ZPL at 602 nm (2.059 eV) at room-temperature, which splits into two components separated by 0.67 meV at low-temperatures (10 K). The Ge-V has an excited state lifetime of 1.4–5.5 ns.[1] FormationGe-V can be created during the diamond growth, or by ion implantation and subsequent annealing at 800 °C. The former way results in lower lattice strain, as revealed by the spread in the position and width of the Ge-V ZPL.[1][2] References{{Commons category|Germanium-vacancy center in diamond}}1. ^1 2 3 4 {{Cite journal | doi = 10.1038/srep12882| pmid = 26250337| pmc = 4528202| title = Germanium-Vacancy Single Color Centers in Diamond| journal = Scientific Reports| volume = 5| pages = 12882| year = 2015| last1 = Iwasaki | first1 = T. | last2 = Ishibashi | first2 = F. | last3 = Miyamoto | first3 = Y. | last4 = Doi | first4 = Y. | last5 = Kobayashi | first5 = S. | last6 = Miyazaki | first6 = T. | last7 = Tahara | first7 = K. | last8 = Jahnke | first8 = K. D. | last9 = Rogers | first9 = L. J. | last10 = Naydenov | first10 = B. | last11 = Jelezko | first11 = F. | last12 = Yamasaki | first12 = S. | last13 = Nagamachi | first13 = S. | last14 = Inubushi | first14 = T. | last15 = Mizuochi | first15 = N. | last16 = Hatano | first16 = M. |arxiv = 1503.04938 |bibcode = 2015NatSR...512882I }} 2. ^{{Cite journal | doi = 10.1038/srep14789| pmid = 26435400| pmc = 4593174| title = Germanium: a new catalyst for diamond synthesis and a new optically active impurity in diamond| journal = Scientific Reports| volume = 5| pages = 14789| year = 2015| last1 = Palyanov | first1 = Y. N. | last2 = Kupriyanov | first2 = I. N. | last3 = Borzdov | first3 = Y. M. | last4 = Surovtsev | first4 = N. V. |bibcode = 2015NatSR...514789P }} 5 : Diamond|Spintronics|Spectroscopy|Crystallographic defects|Quantum information science |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。