Isotopic disorder in Ge single crystals probed with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:msup><mml:mrow /><mml:mrow><mml:mn>73</mml:mn></mml:mrow></mml:msup></mml:mrow><mml:mi mathvariant="normal">Ge</mml:mi></mml:math>NMR

Verkhovskiǐ, S. V.; Yakubovsky, A.; Малкин, Б. З.; Saikin, Semion K.; Cardona, M.; Trokiner, A.; Ozhogin, V. I.

doi:10.1103/physrevb.68.104201

Cited by 18 publications

(9 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…3 Since then, there have been very few solid-state 73 Ge NMR spectra reported in the literature. [4][5][6][7][8][9][10] In most cases, Ge is in a highly symmetric environment.…”

Section: First Published On the Web 20th March 2010mentioning

confidence: 99%

Exploring the limits of 73Ge solid-state NMR spectroscopy at ultrahigh magnetic field

et al. 2010

View full text Add to dashboard Cite

“…3 Since then, there have been very few solid-state 73 Ge NMR spectra reported in the literature. [4][5][6][7][8][9][10] In most cases, Ge is in a highly symmetric environment.…”

Section: First Published On the Web 20th March 2010mentioning

confidence: 99%

Exploring the limits of 73Ge solid-state NMR spectroscopy at ultrahigh magnetic field

et al. 2010

View full text Add to dashboard Cite

“…Some limited experiments on Sb [20,21] and 31 P [22] donors in highly strained Ge were also reported. More recently, pulsed nuclear magnetic resonance studies were conducted on 73 Ge nuclear spins [23][24][25] which found that the 73 Ge nuclear spin coherence in germanium can be > 100 ms.…”

mentioning

confidence: 99%

Electron Spin Coherence of Shallow Donors in Natural and Isotopically Enriched Germanium

et al. 2015

View full text Add to dashboard Cite

Germanium is a widely used material for electronic and optoelectronic devices and recently it has become an important material for spintronics and quantum computing applications. Donor spins in silicon have been shown to support very long coherence times (T2) when the host material is isotopically enriched to remove any magnetic nuclei. Germanium also has non-magnetic isotopes so it is expected to support long T2s while offering some new properties. Compared to Si, Ge has a strong spin-orbit coupling, large electron wavefunction, high mobility, and highly anisotropic conduction band valleys which will all give rise to new physics. In this Letter, the first pulsed electron spin resonance (ESR) measurements of T2 and the spin-lattice relaxation (T1) times for 75 As and 31 P donors in natural and isotopically enriched germanium are presented. We compare samples with various levels of isotopic enrichment and find that spectral diffusion due to 73 Ge nuclear spins limits the coherence in samples with significant amounts of 73 Ge. For the most highly enriched samples, we find that T1 limits T2 to T2 = 2T1. We report an anisotropy in T1 and the ensemble linewidths for magnetic fields oriented along different crystal axes but do not resolve any angular dependence to the spectral-diffusion-limited T2 in samples with 73 Ge.

show abstract

“…The four highly enriched single-crystals isotopes 70 Ge, 73 Ge, 74 Ge, and 76 Ge have been compared by x-ray backscattering in the temperature range 8-300 K [9,10]. The difference in thermal expansion between different isotopes of germanium has been checked also with 73 Ge nuclear magnetic resonance (NMR) [11].…”

mentioning

confidence: 99%

Isotopic Effect In Extended X-Ray-Absorption Fine Structure of Germanium

et al. 2008

Self Cite

View full text Add to dashboard Cite

Extended x-ray absorption fine structure has been measured on two powdered samples of (70)Ge and (76)Ge as a function of temperature from 20 to 300 K. The effect of isotopic mass difference on the amplitude of relative atomic vibrations is neatly evidenced by the temperature dependence of the difference of Debye-Waller factors. The isotopic effect is also detected on the difference of nearest-neighbor average ineratomic distances, thanks to a resolution better than 10 fm.

show abstract

Isotopic disorder in Ge single crystals probed with73GeNMR

Cited by 18 publications

References 43 publications

Exploring the limits of 73Ge solid-state NMR spectroscopy at ultrahigh magnetic field

Exploring the limits of 73Ge solid-state NMR spectroscopy at ultrahigh magnetic field

Electron Spin Coherence of Shallow Donors in Natural and Isotopically Enriched Germanium

Isotopic Effect In Extended X-Ray-Absorption Fine Structure of Germanium

Contact Info

Product

Resources

About