Transition Metal Ion Ensembles in Crystals as Solid-State Coherent Spin-Photon Interfaces: The Case of Nickel in Magnesium Oxide

Polarization-dependent photoluminescence of Ce-implanted MgO and MgAl2O4

“…[1][2][3][4][5][6][7][8][9][10][11][12][13] Typical materials are nitrogen-vacancy (NV) center in diamond 3,[7][8][9][10][11] and divacancy (VV) center in silicon carbide, 5,6) which have a long spin coherence time (T 2 ) even at RT and achieve high fidelity spin control 14,15) and readout. [2][3][4] Recently, using the polarization-and spindependent optical properties [16][17][18][19][20] in the single substitutional lanthanoids defect in oxides, 19) such as Y 3 Al 5 O 12 :Ce 3+ (YAG) with S = 1/2 16,17) and YAG:Pr 3+ with S = 1, 20) optically detected magnetic resonance are investigated, demonstrating the operation, namely initialization, writing, readout of the spin qubit state. 17) Since the qubit's performance of solid-state spin centers depends highly on the host material, spin centers using new host materials may offer new qubit applications.…”