Measurement of transverse spin-relaxation rates in a rubidium vapor by use of spin-noise spectroscopy

We used Magnetic Resonance microimaging (MRI) to study the compressive behaviour of synthetic elastin. Compression-induced changes in the elastin sample were quantified using longitudinal and transverse spin relaxation rates (R1 and R2, respectively). Spatially-resolved maps of each spin relaxation rate were obtained, allowing the heterogeneous texture of the sample to be observed with and without compression. Compression resulted in an increase of both the mean R1 and the mean R2, but most of this increase was due to sub-locations that exhibited relatively low R1 and R2 in the uncompressed state. This behaviour can be described by differential compression, where local domains in the hydrogel with a relatively low biopolymer content compress more than those with a relatively high biopolymer content.

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Signal-to-noise ratio of spin noise spectroscopy in rubidium vapor

Acta Physica Sinica ◽

10.7498/aps.66.017201 ◽

2017 ◽

Vol 66 (1) ◽

pp. 017201

Author(s):

Shi Ping ◽

Ma Jian ◽

Qian Xuan ◽

Ji Yang ◽

Li Wei

Keyword(s):

Signal To Noise Ratio ◽

Signal To Noise ◽

Rubidium Vapor ◽

Spin Noise ◽

Noise Spectroscopy ◽

Noise Ratio

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Ultrafast spin noise spectroscopy

Applied Physics Letters ◽

10.1063/1.2969041 ◽

2008 ◽

Vol 93 (5) ◽

pp. 051116 ◽

Cited By ~ 24

Author(s):

Sebastian Starosielec ◽

Daniel Hägele

Keyword(s):

Spin Noise ◽

Noise Spectroscopy

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Spin noise spectroscopy of quantum dot molecules

Physical Review B ◽

10.1103/physrevb.88.045320 ◽

2013 ◽

Vol 88 (4) ◽

Cited By ~ 9

Author(s):

Dibyendu Roy ◽

Yan Li ◽

Alex Greilich ◽

Yuriy V. Pershin ◽

Avadh Saxena ◽

...

Keyword(s):

Quantum Dot ◽

Spin Noise ◽

Quantum Dot Molecules ◽

Noise Spectroscopy

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NUCLEAR RELAXATION RATES, PENETRATION DEPTH, AND ENERGY-DEPENDENT GAP FUNCTIONS IN HIGH-Tc SUPERCONDUCTORS

Modern Physics Letters B ◽

10.1142/s0217984992002015 ◽

1992 ◽

Vol 06 (18) ◽

pp. 1145-1150 ◽

Cited By ~ 1

Author(s):

Q. P. LI ◽

ROBERT JOYNT

Keyword(s):

Penetration Depth ◽

Spin Relaxation ◽

Nuclear Spin ◽

High Temperature Superconductors ◽

Gap Function ◽

Gap Functions ◽

Nuclear Spin Relaxation ◽

Relaxation Rates ◽

Relaxation Experiments ◽

Energy Dependent

We study the experimental consequences of a gap function which is odd in energy. This type of gap may occur in high temperature superconductors. We show that nuclear spin relaxation experiments can be used to probe the "particle-hole parity" of a gap function. We find that an exponent α=1/3 which characterizes the energy dependence is in agreement with the currently available experimental data of both the nuclear spin relaxation rate (∝T(2-α)/α) and the electromagnetic penetration depth (∝T(1-α)/α).

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