@inproceedings{827d32e72efc4e6bb5e626bd4bd21aa8,
title = "Nuclear-spin observation of noise spectra in semiconductors",
abstract = "We propose a systematic method of obtaining the spectra of noises that cause the decoherence of spins in solids. Based on this method, we experimentally show that this method can be applied to nuclear spins in semiconductors. We clarify that the spectral intensity must be derived from the long-time tail of the multiple-echo decay. To obtain higher-frequency noise, the inversion-pulse interval must be as short as possible, which required us to employ the alternating-phase Carr-Purcell sequence instead of the widely used Carr-Purcell Meiboom-Gill. For 75As nuclear spin in variously-doped GaAs, we observed a Lorentzian spectrum, instead of the commonly observed 1/f spectrum. This indicates that the nuclear spins are indeed in a coherently-controlled state.",
keywords = "low-frequency noise, multiple pulse, nuclear spin",
author = "Susumu Sasaki and Tatsuro Yuge and Masashi Nishimori and Takashi Kawanago and Yoshiro Hirayama",
year = "2013",
month = jan,
day = "1",
doi = "10.1063/1.4848533",
language = "English",
isbn = "9780735411944",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
pages = "558--559",
booktitle = "Physics of Semiconductors - Proceedings of the 31st International Conference on the Physics of Semiconductors, ICPS 2012",
note = "31st International Conference on the Physics of Semiconductors, ICPS 2012 ; Conference date: 29-07-2012 Through 03-08-2012",
}