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R. Hellmann
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Journal Articles

Deciphering strontium sulfate precipitation via Ostwald’s rule of stages: From prenucleation clusters to solution-mediated phase tranformation

A. R. Lauer, R. Hellmann, G. Montes-Hernandez, N. Findling, W. L. Ling, T. Epicier, A. Fernandez-Martinez, A. E. S. Van Driessche
Journal: The Journal of Chemical Physics
J. Chem. Phys. 158, 054501 (2023)
https://doi.org/10.1063/5.0136870
Published: February 2023
View articletitled, Deciphering strontium sulfate precipitation via Ostwald’s rule of stages: From prenucleation clusters to solution-mediated phase tranformation
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Includes: Supplementary data
Journal Articles

New International Formulation for the Thermal Conductivity of Heavy Water

M. L. Huber, R. A. Perkins, M. J. Assael, S. A. Monogenidou, R. Hellmann, J. V. Sengers
Journal: Journal of Physical and Chemical Reference Data
J. Phys. Chem. Ref. Data 51, 013102 (2022)
https://doi.org/10.1063/5.0084222
Published: March 2022
View articletitled, New International Formulation for the Thermal Conductivity of Heavy Water
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Journal Articles

Control of femtosecond laser generated microfluidic channels inside poly(methyl methacrylate)

Editor’s Pick
G.-L. Roth, C. Esen, R. Hellmann
Journal: Journal of Laser Applications
J. Laser Appl. 30, 032016 (2018)
https://doi.org/10.2351/1.5049352
Published: August 2018
View articletitled, Control of femtosecond laser generated microfluidic channels inside poly(methyl methacrylate)
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Journal Articles

New International Formulation for the Thermal Conductivity of H2O

M. L. Huber, R. A. Perkins, D. G. Friend, J. V. Sengers, M. J. Assael, I. N. Metaxa, K. Miyagawa, R. Hellmann, E. Vogel
Journal: Journal of Physical and Chemical Reference Data
J. Phys. Chem. Ref. Data 41, 033102 (2012)
https://doi.org/10.1063/1.4738955
Published: August 2012
View articletitled, New International Formulation for the Thermal Conductivity of H2O
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Journal Articles

Contributions of multipolar polarizabilities to the isotropic and anisotropic light scattering induced by molecular interactions in gaseous methane

M. S. A. El-Kader, S. M. El-Sheikh, T. Bancewicz, R. Hellmann
Journal: The Journal of Chemical Physics
J. Chem. Phys. 131, 044314 (2009)
https://doi.org/10.1063/1.3180823
Published: July 2009
View articletitled, Contributions of multipolar polarizabilities to the isotropic and anisotropic light scattering induced by molecular interactions in gaseous methane
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Journal Articles

Using piezoelectric film and ultrasound resonance to measure the elastic moduli of spherical ceramic particles

P. S. Spoor, M. J. McKenna, J. D. Maynard, John R. Hellmann
Journal: The Journal of the Acoustical Society of America
J. Acoust. Soc. Am. 89, 1858 (1991)
https://doi.org/10.1121/1.2029269
Published: August 2005
View articletitled, Using piezoelectric film and ultrasound resonance to measure the elastic moduli of spherical ceramic particles
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Journal Articles

Elastic constants and crystal anisotropy of titanium diboride

P. S. Spoor, J. D. Maynard, M. J. Pan, D. J. Green, J. R. Hellmann, T. Tanaka
Journal: Applied Physics Letters
Appl. Phys. Lett. 70, 1959–1961 (1997)
https://doi.org/10.1063/1.118791
Published: April 1997
View articletitled, Elastic constants and crystal anisotropy of titanium diboride
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Journal Articles

Time resolved photoluminescence studies of perpendicular transport in CdTe/Cd1−xMnxTe short‐period superlattices

R. Hellmann, A. Pohlmann, E. O. Göbel, D. R. Yakovlev, A. Waag, R. N. Bicknell‐Tassius, G. Landwehr
Journal: Journal of Applied Physics
J. Appl. Phys. 74, 5272–5274 (1993)
https://doi.org/10.1063/1.354270
Published: October 1993
View articletitled, Time resolved photoluminescence studies of perpendicular transport in CdTe/Cd1−xMnxTe short‐period superlattices
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Journal Articles

Exciton lifetimes in CdTe/CdMnTe single quantum wells

A. Polhmann, R. Hellmann, E. O. Göbel, D. R. Yakovlev, W. Ossau, A. Waag, R. N. Bicknell‐Tassius, G. Landwehr
Journal: Applied Physics Letters
Appl. Phys. Lett. 61, 2929–2931 (1992)
https://doi.org/10.1063/1.108025
Published: December 1992
View articletitled, Exciton lifetimes in CdTe/CdMnTe single quantum wells
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