Abstract
We report the transverse relaxation rates 1/T2's of the Cu63 nuclear spin-echo envelope for double-layer high-Tc cuprate superconductors HgBa2CaCu2O6+δ from underdoped to overdoped. The relaxation rate 1/T2L of the exponential function (Lorentzian component) shows a peak at 220-240 K in the underdoped (Tc=103 K) and the optimally doped (Tc=127 K) samples but no peak in the overdoped (Tc=93 K) sample. The enhancement in 1/T2L suggests a development of the zero frequency components of local field fluctuations. Ultraslow fluctuations are hidden in the pseudogap states.
| Original language | English |
|---|---|
| Article number | 094501 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 95 |
| Issue number | 9 |
| DOIs | |
| Publication status | Published - 2017 Mar 6 |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Ultraslow fluctuations in the pseudogap states of HgBa2CaCu2 O6+δ. / Itoh, Yutaka; Machi, Takato; Yamamoto, Ayako.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 95, No. 9, 094501, 06.03.2017.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Ultraslow fluctuations in the pseudogap states of HgBa2CaCu2 O6+δ
AU - Itoh, Yutaka
AU - Machi, Takato
AU - Yamamoto, Ayako
PY - 2017/3/6
Y1 - 2017/3/6
N2 - We report the transverse relaxation rates 1/T2's of the Cu63 nuclear spin-echo envelope for double-layer high-Tc cuprate superconductors HgBa2CaCu2O6+δ from underdoped to overdoped. The relaxation rate 1/T2L of the exponential function (Lorentzian component) shows a peak at 220-240 K in the underdoped (Tc=103 K) and the optimally doped (Tc=127 K) samples but no peak in the overdoped (Tc=93 K) sample. The enhancement in 1/T2L suggests a development of the zero frequency components of local field fluctuations. Ultraslow fluctuations are hidden in the pseudogap states.
AB - We report the transverse relaxation rates 1/T2's of the Cu63 nuclear spin-echo envelope for double-layer high-Tc cuprate superconductors HgBa2CaCu2O6+δ from underdoped to overdoped. The relaxation rate 1/T2L of the exponential function (Lorentzian component) shows a peak at 220-240 K in the underdoped (Tc=103 K) and the optimally doped (Tc=127 K) samples but no peak in the overdoped (Tc=93 K) sample. The enhancement in 1/T2L suggests a development of the zero frequency components of local field fluctuations. Ultraslow fluctuations are hidden in the pseudogap states.
UR - http://www.scopus.com/inward/record.url?scp=85014839888&partnerID=8YFLogxK
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U2 - 10.1103/PhysRevB.95.094501
DO - 10.1103/PhysRevB.95.094501
M3 - Article
VL - 95
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 0163-1829
IS - 9
M1 - 094501
ER -