Nuclear Magnetic Resonance.

FEATURES
Local Contact
DRESDEN

Hannes Kühne

GRENOBLE

Mladen Horvatić
Marc-Henri Julien
Steffen Krämer
Hadrien Mayaffre

TOULOUSE

Nicolas Bruyant

Field range
DRESDEN 0 ... 70 T
GRENOBLE variable up to 36 T (maximum available DC field in 2018)
TOULOUSE 0 ... 58 T
Temperature range
DRESDEN 2.0 – 300 K
GRENOBLE Variable temperature for solid state physics NMR:
1.3 K to 300 K with ⁴He variable temperature insert,
350 mK to 4.2 K with ³He variable temperature insert,
40 mK to 1.0 K with ³He/⁴He dilution refrigerator.
Room temperature (regulated) for high resolution NMR for chemistry.
TOULOUSE 1.5 ... 300 K
Sample size
DRESDEN <10 mm³ to avoid spectral broadening
GRENOBLE Solid state physics NMR:
< 10 mm³, almost any sample can be accommodated.

High resolution NMR for chemistry:
< 1 cm³, almost any sample can be accommodated.
TOULOUSE Powders, liquids or single crystals
< 5 mm diameter,
<10 mm length
minimum sample sized limited by sensitivity
The samples can be mounted with a defined orientation
Resolution
DRESDEN 10¹⁷ ¹H spins typically
GRENOBLE Solid state physics NMR:
50 ppm / 1 mm³ at variable magnetic field (< 10 ppm for single-scan recordings).

High resolution NMR for chemistry (ferroshim and spin-lock):
20 ppm / 1 cm³ at fixed magnetic field (< 10 ppm for single-scan recordings)
TOULOUSE
Limitations
DRESDEN
GRENOBLE
TOULOUSE Nucleus with short T1
Typical experiment
DRESDEN NMR from 10 – 3000 MHz with at least 200 W pulse power

NMR data is recorded in the maximum regime of the field pulse during a time window of several ms, typically.
Several FID or echo signals can be recorded during one field pulse.
GRENOBLE Variable frequency NMR for any NMR active nucleus up to 1.5 GHz:
Magnetic field and/or temperature dependence of NMR spectra as well as longitudinal (T₁) and transverse (T₂) NMR relaxation.
High resolution NMR spectra at fixed field (ferroshim and spin-lock).
CPMG multi-pulse experiments.
TOULOUSE NMR from 200MHz to 1200MHz with 500 W pulse power
Single scan NMR looking for phase transition in the spectrum
Knight shift, chemical shift determination
Sample Holder
DRESDEN The NMR coil is mounted on a platform with 10 mm diameter.
GRENOBLE Tailored NMR coils for optimized sensitivity.
Top-tuning and bottom-tuning configuration.
Goniometer option.
High pressure cell option (< 2.4 GPa).
Further details and drawings available upon request.
TOULOUSE NMR coil is directly winded around the sample for maximum sensitivity
Sample environment
DRESDEN Gaseous helium from 300 down to 4 K, liquid helium below.
GRENOBLE < 4.2 K: sample in liquid (⁴He, ³He or ³He/⁴He mixture).
> 4.2 K: sample in gas.
TOULOUSE Gaseous helium from 300K down to 4K, liquid helium below 4K
Examples
DRESDEN Spin-dimer systems: J. Kohlrautz et al., J. Magn. Reson. 271, 52 (2016)
NMR shift and T1: J. Kohlrautz et al., J. Magn. Reson. 263, 1 (2016)
NMR setup: B. Meier et al., Rev. Sci. Instrum. 83, 083113 (2012)
Signal averaging: B. Meier et al., J. Magn. Reson. 210, 1 (2011)
GRENOBLE Overview C. R. Physique 18, 331–348 (2017)
Quantum magnets Phys. Rev. Lett. 114, 227202/1-5 (2015)
High-Tc superconductors PNAS 114, 13148 (2017)
Organic conductors Nature Phys. 10, 928–932 (2014)
Heavy Fermions Phys. Rev. B 93, 201112(R) (2016)
Magnetic field dependence of paramagnetic relaxation enhancement (PRE):
1H PRE up to 1.4 GHz ChemPhysChem 15, 3608 (2014).
Resolution enhanced NMR of quadrupolar nuclei: 91Zr NMR at 30 T Inorganic Chemistry 48, 8709 (2009).
TOULOUSE Experimental setup description Abou-Hamad, E et al.State Nucl. Magn. Reson., 2011, 40, 42 - 44
High homogeneity magnet: High homogeneity magnet
Frustrated magnet
High-Tc superconductors
DRESDEN
local contact: H. Kühne
GRENOBLE
local contact: M. Horvatić,
M. Julien, S. Krämer, H. Mayaffre
TOULOUSE
local contact: n.bruyant
FEATURES DRESDEN GRENOBLE TOULOUSE
Local Contact

Hannes Kühne

Mladen Horvatić
Marc-Henri Julien
Steffen Krämer
Hadrien Mayaffre

Nicolas Bruyant

Field range 0 ... 70 T variable up to 36 T (maximum available DC field in 2018) 0 ... 58 T
Temperature range 2.0 – 300 K Variable temperature for solid state physics NMR:
1.3 K to 300 K with ⁴He variable temperature insert,
350 mK to 4.2 K with ³He variable temperature insert,
40 mK to 1.0 K with ³He/⁴He dilution refrigerator.
Room temperature (regulated) for high resolution NMR for chemistry.
1.5 ... 300 K
Sample size <10 mm³ to avoid spectral broadening Solid state physics NMR:
< 10 mm³, almost any sample can be accommodated.

High resolution NMR for chemistry:
< 1 cm³, almost any sample can be accommodated.
Powders, liquids or single crystals
< 5 mm diameter,
<10 mm length
minimum sample sized limited by sensitivity
The samples can be mounted with a defined orientation
Resolution 10¹⁷ ¹H spins typically Solid state physics NMR:
50 ppm / 1 mm³ at variable magnetic field (< 10 ppm for single-scan recordings).

High resolution NMR for chemistry (ferroshim and spin-lock):
20 ppm / 1 cm³ at fixed magnetic field (< 10 ppm for single-scan recordings)
Limitations Nucleus with short T1
Typical experiment NMR from 10 – 3000 MHz with at least 200 W pulse power

NMR data is recorded in the maximum regime of the field pulse during a time window of several ms, typically.
Several FID or echo signals can be recorded during one field pulse.
Variable frequency NMR for any NMR active nucleus up to 1.5 GHz:
Magnetic field and/or temperature dependence of NMR spectra as well as longitudinal (T₁) and transverse (T₂) NMR relaxation.
High resolution NMR spectra at fixed field (ferroshim and spin-lock).
CPMG multi-pulse experiments.
NMR from 200MHz to 1200MHz with 500 W pulse power
Single scan NMR looking for phase transition in the spectrum
Knight shift, chemical shift determination
Sample Holder The NMR coil is mounted on a platform with 10 mm diameter. Tailored NMR coils for optimized sensitivity.
Top-tuning and bottom-tuning configuration.
Goniometer option.
High pressure cell option (< 2.4 GPa).
Further details and drawings available upon request.
NMR coil is directly winded around the sample for maximum sensitivity
Sample environment Gaseous helium from 300 down to 4 K, liquid helium below. < 4.2 K: sample in liquid (⁴He, ³He or ³He/⁴He mixture).
> 4.2 K: sample in gas.
Gaseous helium from 300K down to 4K, liquid helium below 4K
Examples Spin-dimer systems: J. Kohlrautz et al., J. Magn. Reson. 271, 52 (2016)
NMR shift and T1: J. Kohlrautz et al., J. Magn. Reson. 263, 1 (2016)
NMR setup: B. Meier et al., Rev. Sci. Instrum. 83, 083113 (2012)
Signal averaging: B. Meier et al., J. Magn. Reson. 210, 1 (2011)
Overview C. R. Physique 18, 331–348 (2017)
Quantum magnets Phys. Rev. Lett. 114, 227202/1-5 (2015)
High-Tc superconductors PNAS 114, 13148 (2017)
Organic conductors Nature Phys. 10, 928–932 (2014)
Heavy Fermions Phys. Rev. B 93, 201112(R) (2016)
Magnetic field dependence of paramagnetic relaxation enhancement (PRE):
1H PRE up to 1.4 GHz ChemPhysChem 15, 3608 (2014).
Resolution enhanced NMR of quadrupolar nuclei: 91Zr NMR at 30 T Inorganic Chemistry 48, 8709 (2009).
Experimental setup description Abou-Hamad, E et al.State Nucl. Magn. Reson., 2011, 40, 42 - 44
High homogeneity magnet: High homogeneity magnet
Frustrated magnet
High-Tc superconductors
local contact: H. Kühne
local contact: M. Horvatić,
M. Julien, S. Krämer, H. Mayaffre
local contact: n.bruyant