Nuclear acoustic resonance of<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mmultiscripts><mml:mrow><mml:mi mathvariant="normal">Ge</mml:mi></mml:mrow><mml:mprescripts /><mml:mrow /><mml:mrow><mml:mn>73</mml:mn></mml:mrow><mml:mrow /><mml:mrow /></mml:mmultiscripts></mml:mrow></mml:math>in single-crystal germanium; interpretation of experimental gradient-elastic-tensor components in germanium and zinc-blende compounds

Sundfors, R. K.

doi:10.1103/physrevb.20.3562

Cited by 15 publications

(10 citation statements)

References 8 publications

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“…Hence, S 11 = 1.5(3)×10 22 V/m 2 and S 44 = 6.8(20)×10 22 V/m 2 using q = 31.4 fm 2 for 75 As [22]. While there are no previous measurements of S in Si due to the absence of stable isotopes with nonzero quadrupole interaction, we note that the obtained values are similar to those reported from acoustic nuclear resonance on 73 Ge in Ge [28], both with respect to the absolute values of S 11 and S 44 and to their relative size. This correspondence is expected due to the similar crystal structure of Si and Ge and the equal core electron configuration of As and Ge.…”

supporting

confidence: 81%

Interaction of Strain and Nuclear Spins in Silicon: Quadrupolar Effects on Ionized Donors

et al. 2015

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The nuclear spins of ionized donors in silicon have become an interesting quantum resource due to their very long coherence times. Their perfect isolation, however, comes at a price, since the absence of the donor electron makes the nuclear spin difficult to control. We demonstrate that the quadrupolar interaction allows us to effectively tune the nuclear magnetic resonance of ionized arsenic donors in silicon via strain and determine the two nonzero elements of the S tensor linking strain and electric field gradients in this material to S(11)=1.5×10(22) V/m2 and S(44)=6×10(22) V/m2. We find a stronger benefit of dynamical decoupling on the coherence properties of transitions subject to first-order quadrupole shifts than on those subject to only second-order shifts and discuss applications of quadrupole physics including mechanical driving of magnetic resonance, cooling of mechanical resonators, and strain-mediated spin coupling.

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supporting

confidence: 81%

Interaction of Strain and Nuclear Spins in Silicon: Quadrupolar Effects on Ionized Donors

et al. 2015

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“…Now we can use our models, benchmarked against the LQSE experimental data on the 123 Sb nucleus, to estimate the spin-elastic coupling. In other words, we analyze a hypothetical Nuclear Acoustic Resonance (NAR) experiment [74] where a dynamical strain δ at the nuclear site is caused by the zero-point strain zpf of the resonator. We assume that the length of the beam, the z-axis, coincides with the [110] crystallographic axis of Si.…”

Section: S8 Spin-mechanical Couplingmentioning

confidence: 99%

Coherent electrical control of a single high-spin nucleus in silicon

Asaad

Mourik

Joecker

et al. 2020

Nature

121

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Nuclear spins are highly coherent quantum objects. In large ensembles, their control and detection via magnetic resonance is widely exploited, e.g. in chemistry, medicine, materials science and mining. Nuclear spins also featured in early ideas [1] and demonstrations [2] of quantum information processing. Scaling up these ideas requires controlling individual nuclei, which can be detected when coupled to an electron [3, 4, 5]. However, the need to address the nuclei via oscillating magnetic fields complicates their integration in multispin nanoscale devices, because the field cannot be localized or screened. Control via electric fields would resolve this problem, but previous methods [6, 7, 8] relied upon transducing electric signals into magnetic fields via the electron-nuclear hyperfine interaction, which severely affects the nuclear coherence. Here we demonstrate the coherent quantum control of a single antimony (spin-7/2) nucleus, using localized electric fields produced within a silicon nanoelectronic device. The method exploits an idea first proposed in 1961 [9] but never realized experimentally with a single nucleus. Our results are quantitatively supported by a microscopic theoretical model that reveals how the purely electrical modulation of the nuclear electric quadrupole interaction, in the presence of lat- † To whom correspondence should be addressed;

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“…= 16 that might be compared with the value 7.8 of this factor used in Ref. 23 together with the Ge charge +4. However, a comparison of phenomenological parameters of models based on different physical grounds cannot be justified.…”

Section: Parameters Of the Modelmentioning

confidence: 98%

“…In our previous work 34 , we were able to interpret the temperature dependence of the spin-lattice relaxation time in Ge single crystals in the framework of the anharmonic bond charge model by introducing two different antishielding constants: b γ for bond charges, which are the nearest neighbors of the 73 Ge nucleus, and ∞ γ for all other charges localized on atoms and bonds. Additional information about the shielding constants may be obtained from the measured components of the gradient-elastic tensor 23 , the corresponding analysis of this tensor in the framework of the bond charge model is given below.…”

Section: Parameters Of the Modelmentioning

confidence: 99%