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J. S. Reparaz
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Journal Articles

Localized thinning for strain concentration in suspended germanium membranes and optical method for precise thickness measurement

P. O. Vaccaro, M. I. Alonso, M. Garriga, J. Gutiérrez, D. Peró, M. R. Wagner, J. S. Reparaz, C. M. Sotomayor Torres, X. Vidal, E. A. Carter, P. A. Lay, M. Yoshimoto, A. R. Goñi
Journal: AIP Advances
AIP Advances 8, 115131 (2018)
https://doi.org/10.1063/1.5050674
Published: November 2018
View article titled, Localized thinning for strain concentration in suspended germanium membranes and optical method for precise thickness measurement
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Journal Articles

Tensile strain mapping in flat germanium membranes

S. D. Rhead, J. E. Halpin, V. A. Shah, M. Myronov, D. H. Patchett, P. S. Allred, V. Kachkanov, I. P. Dolbnya, J. S. Reparaz, N. R. Wilson, C. M. Sotomayor Torres, D. R. Leadley
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 172107 (2014)
https://doi.org/10.1063/1.4874836
Published: May 2014
View article titled, Tensile strain mapping in flat germanium membranes
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Journal Articles

High quality single crystal Ge nano-membranes for opto-electronic integrated circuitry

V. A. Shah, S. D. Rhead, J. E. Halpin, O. Trushkevych, E. Chávez-Ángel, A. Shchepetov, V. Kachkanov, N. R. Wilson, M. Myronov, J. S. Reparaz, R. S. Edwards, M. R. Wagner, F. Alzina, I. P. Dolbnya, D. H. Patchett, P. S. Allred, M. J. Prest, P. M. Gammon, M. Prunnila, T. E. Whall, E. H. C. Parker, C. M. Sotomayor Torres, D. R. Leadley
Journal: Journal of Applied Physics
J. Appl. Phys. 115, 144307 (2014)
https://doi.org/10.1063/1.4870807
Published: April 2014
View article titled, High quality single crystal Ge nano-membranes for opto-electronic integrated circuitry
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Journal Articles

Hypersonic phonon propagation in one-dimensional surface phononic crystal

B. Graczykowski, M. Sledzinska, N. Kehagias, F. Alzina, J. S. Reparaz, C. M. Sotomayor Torres
Journal: Applied Physics Letters
Appl. Phys. Lett. 104, 123108 (2014)
https://doi.org/10.1063/1.4870045
Published: March 2014
View article titled, Hypersonic phonon propagation in one-dimensional surface phononic crystal
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Journal Articles

A novel contactless technique for thermal field mapping and thermal conductivity determination: Two-Laser Raman Thermometry

J. S. Reparaz, E. Chavez-Angel, M. R. Wagner, B. Graczykowski, J. Gomis-Bresco, F. Alzina, C. M. Sotomayor Torres
Journal: Review of Scientific Instruments
Rev. Sci. Instrum. 85, 034901 (2014)
https://doi.org/10.1063/1.4867166
Published: March 2014
View article titled, A novel contactless technique for thermal field mapping and thermal conductivity determination: Two-Laser Raman Thermometry
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Journal Articles

Reduction of the thermal conductivity in free-standing silicon nano-membranes investigated by non-invasive Raman thermometry

E. Chávez-Ángel, J. S. Reparaz, J. Gomis-Bresco, M. R. Wagner, J. Cuffe, B. Graczykowski, A. Shchepetov, H. Jiang, M. Prunnila, J. Ahopelto, F. Alzina, C. M. Sotomayor Torres
Journal: APL Materials
APL Mater. 2, 012113 (2014)
https://doi.org/10.1063/1.4861796
Published: January 2014
View article titled, Reduction of the thermal conductivity in free-standing silicon nano-membranes investigated by non-invasive Raman thermometry
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Includes: Supplementary data
Journal Articles

Spatial mapping of exciton lifetimes in single ZnO nanowires

J. S. Reparaz, G. Callsen, M. R. Wagner, F. Güell, J. R. Morante, C. M. Sotomayor Torres, A. Hoffmann
Journal: APL Materials
APL Mater. 1, 012103 (2013)
https://doi.org/10.1063/1.4808441
Published: June 2013
View article titled, Spatial mapping of exciton lifetimes in single ZnO nanowires
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Journal Articles

Influence of alloy inhomogeneities on the determination by Raman scattering of composition and strain in Si1–xGex/Si(001) layers

J. S. Reparaz, I. C. Marcus, A. R. Goñi, M. Garriga, M. I. Alonso
Journal: Journal of Applied Physics
J. Appl. Phys. 112, 023512 (2012)
https://doi.org/10.1063/1.4737486
Published: July 2012
View article titled, Influence of alloy inhomogeneities on the determination by Raman scattering of composition and strain in Si<sub>1–</sub><sub><em>x</em></sub>Ge<sub><em>x</em></sub>/Si(001) layers
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Journal Articles

Decay dynamics of excitonic polarons in InAs/GaAs quantum dots

S. Werner, J. S. Reparaz, M. R. Wagner, P. Zimmer, N. N. Ledentsov, J. Kabuss, M. R. Dachner, M. Richter, A. Knorr, C. Thomsen, A. Hoffmann
Journal: Journal of Applied Physics
J. Appl. Phys. 110, 074303 (2011)
https://doi.org/10.1063/1.3639310
Published: October 2011
View article titled, Decay dynamics of excitonic polarons in InAs/GaAs quantum dots
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Journal Articles

Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements

G. Callsen, J. S. Reparaz, M. R. Wagner, R. Kirste, C. Nenstiel, A. Hoffmann, M. R. Phillips
Journal: Applied Physics Letters
Appl. Phys. Lett. 98, 061906 (2011)
https://doi.org/10.1063/1.3554434
Published: February 2011
View article titled, Phonon deformation potentials in wurtzite GaN and ZnO determined by uniaxial pressure dependent Raman measurements
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Journal Articles

Recombination dynamics in ZnO nanowires: Surfaces states versus mode quality factor

J. S. Reparaz, F. Güell, M. R. Wagner, G. Callsen, R. Kirste, S. Claramunt, J. R. Morante, A. Hoffmann
Journal: Applied Physics Letters
Appl. Phys. Lett. 97, 133116 (2010)
https://doi.org/10.1063/1.3496444
Published: October 2010
View article titled, Recombination dynamics in ZnO nanowires: Surfaces states versus mode quality factor
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Journal Articles

On the assessment of hydroxyapatite fluoridation by means of Raman scattering

M. Campillo, P. D. Lacharmoise, J. S. Reparaz, A. R. Goñi, M. Valiente
Journal: The Journal of Chemical Physics
J. Chem. Phys. 132, 244501 (2010)
https://doi.org/10.1063/1.3428556
Published: June 2010
View article titled, On the assessment of hydroxyapatite fluoridation by means of Raman scattering
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Journal Articles

Reduction of the transverse effective charge of optical phonons in ZnO under pressure

J. S. Reparaz, L. R. Muniz, M. R. Wagner, A. R. Goñi, M. I. Alonso, A. Hoffmann, B. K. Meyer
Journal: Applied Physics Letters
Appl. Phys. Lett. 96, 231906 (2010)
https://doi.org/10.1063/1.3447798
Published: June 2010
View article titled, Reduction of the transverse effective charge of optical phonons in ZnO under pressure
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Journal Articles

Size-dependent recombination dynamics in ZnO nanowires

J. S. Reparaz, F. Güell, M. R. Wagner, A. Hoffmann, A. Cornet, J. R. Morante
Journal: Applied Physics Letters
Appl. Phys. Lett. 96, 053105 (2010)
https://doi.org/10.1063/1.3294327
Published: February 2010
View article titled, Size-dependent recombination dynamics in ZnO nanowires
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Journal Articles

Composition dependence of the phonon strain shift coefficients of SiGe alloys revisited

J. S. Reparaz, A. Bernardi, A. R. Goñi, M. I. Alonso, M. Garriga
Journal: Applied Physics Letters
Appl. Phys. Lett. 92, 081909 (2008)
https://doi.org/10.1063/1.2884526
Published: February 2008
View article titled, Composition dependence of the phonon strain shift coefficients of SiGe alloys revisited
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Journal Articles

Site-controlled growth of Ge nanostructures on Si(100) via pulsed laser deposition nanostenciling

C. V. Cojocaru, A. Bernardi, J. S. Reparaz, M. I. Alonso, J. M. MacLeod, C. Harnagea, F. Rosei
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 113112 (2007)
https://doi.org/10.1063/1.2783473
Published: September 2007
View article titled, Site-controlled growth of Ge nanostructures on Si(100) via pulsed laser deposition nanostenciling
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Journal Articles

Phonon pressure coefficient as a probe of the strain status of self-assembled quantum dots

J. S. Reparaz, A. Bernardi, A. R. Goñi, P. D. Lacharmoise, M. I. Alonso, M. Garriga, J. Novák, I. Vávra
Journal: Applied Physics Letters
Appl. Phys. Lett. 91, 081914 (2007)
https://doi.org/10.1063/1.2773958
Published: August 2007
View article titled, Phonon pressure coefficient as a probe of the strain status of self-assembled quantum dots
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Journal Articles

Size-dependent strain effects in self-assembled CdSe quantum dots with Zn 0.38 Cd 0.23 Mg 0.39 Se barriers

J. S. Reparaz, A. R. Goñi, M. I. Alonso, M. N. Perez-Paz, M. C. Tamargo
Journal: Applied Physics Letters
Appl. Phys. Lett. 89, 231109 (2006)
https://doi.org/10.1063/1.2402881
Published: December 2006
View article titled, Size-dependent strain effects in self-assembled CdSe quantum dots with Zn 0.38 Cd 0.23 Mg 0.39 Se barriers
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