Publications

2021

Superfluid Optomechanics with Phononic Nanostructures

S. Spence, Z. X. Koong, S. A. R. Horsley, X. Rojas
Physical Review Applied 15, 034090 (2021)

ePrint: arXiv:2012.10816

Fragility of surface states in topological superfluid 3He

P.J. Heikkinen, A. Casey, L.V. Levitin, X. Rojas, A. Vorontsov, P. Sharma, N. Zhelev, J.M. Parpia, J. Saunders
Nature Communication 12, 1574 (2021)

ePrint: arXiv:1909.04210
2020

Comment on “Stabilized Pair Density Wave via Nanoscale Confinement of Superfluid 3He”

L. V. Levitin, X. Rojas, P. J. Heikkinen, A. J. Casey, J. M. Parpia and J. Saunders
Physical Review Letters 125, 059601 (2020)

2018

Fabrication of microfluidic cavities using Si-to-glass anodic bonding

N. Zhelev, T. S. Abhilash, R. G. Bennett, E. N. Smith, B. Ilic, J. M. Parpia, L. V. Levitin, X. Rojas, A. Casey, and J. Saunders
Review of Scientific Instrument 89, 073902 (2018)

ePrint: arXiv:1805.00958
2017

Ultralow-Dissipation Superfluid Micromechanical Resonator

F. Souris, X. Rojas,P. H. Kim, and J. P. Davis
Physical Review Applied 7, 044008 (2017)

ePrint: arXiv:1608.01380

The A-B transition in superfluid 3He under confinement in a thin slab geometry

N. Zhelev, T. S. Abhilash, E. N. Smith, R. G. Bennett, X. Rojas, L. Levitin, J. Saunders and J. M. Parpia
Nature Communications 8, 15963 (2017)

ePrint: arXiv:1610.07186
2016

Optomechanics and Thermometry of Cryogenic Silica Microresonators

A. J. R. MacDonald, B. D. Hauer, X. Rojas, P. H. Kim, G. G. Popowich, J. P. Davis
Physical Review A 93, 013836 (2016)

ePrint: arXiv:1509.01673

Dislocations in a quantum crystal, Solid helium : A model and an exception

S. Balibar, J. Beamish, A. Fefferman, A. Haziot, X. Rojas, F. Souris
Comptes Rendus Physique, 17 264-275 (2016)

Dealing with discordance : a novel approach for analysing U–Pb detrital zircon datasets

J. R. Reimink, J. H.F.L. Davies, J. W.F. Waldron, X. Rojas
Journal of Geological Society 173, 4, 577 (2016)
2015

Thermo-mechanical characterization of on-chip buckled dome Fabry-Perot Microcavities

M. H. Bitarafan, H. Ramp, T. Allen, C. Potts, X. Rojas, A. J. MacDonald, J. P. Davis, R. G. DeCorby
J. Opt. Soc. Am. B 32, 1214 (2015)

ePrint: arXiv:1510.07766

Superfluid nanomechanical resonator for quantum nanofluidics

X. Rojas and J. P. Davis
Physical Review B 91, 024503 (2015)

ePrint: arXiv:1410.5879

Optical microscope and tapered fiber coupling apparatus for a dilution refrigerator

A. J. R. MacDonald, G. G. Popowich, B. D. Hauer, P. H. Kim, A. Fredrick, X. Rojas, P. Doolin, J. P. Davis
Rev. Sci. Instrum. 86, 013107 (2015)

ePrint: arXiv:1411.7702

Resolving oxygen isotopic disturbance in zircon: A case study from the low δ18O Scourie dikes, NW Scotland

J. H.F.L. Davies, R. J. Stern, L. M. Heaman, X. Rojas, E. L. Walton, S. Andrew DuFrane
American Mineralogist, 100, 1952 (2015)
2014

Ultrasonic Interferometer for First-Sound Measurements of Confined Liquid 4He

X. Rojas, B. D. Hauer, A. J. MacDonald, P. Saberi, Y. Yang, J. P. Davis
Physical Review B 89, 174508 (2014) – Selected as Editors’ Suggestion

ePrint: arXiv:1404.0702

Remote Sensing in Hybridized Arrays of Nanostrings

T. S. Biswas, Jin Xu, X. Rojas, C. Doolin, B. D. Hauer, K. S. D. Beach, J. P. Davis
Nano Letter 14, 2541 (2014)
2013

The Giant Plasticity of a Quantum Crystal

A. Haziot, X. Rojas, A. D. Fefferman, J. R. Beamish, S. Balibar
Physical Review Letters 110, 035301 (2013) – Selected as Editors’ Suggestion

ePrint: arXiv:1211.2976

Haziot et al. Reply :

A. Haziot, X. Rojas, A. D. Fefferman, J. R. Beamish, S. Balibar
Physical Review Letters 111, 119602 (2013)
2012

Elastic Effects in Torsional Oscillators Containing Solid Helium

J. R. Beamish, A. D. Fefferman, A. Haziot, X. Rojas, S. Balibar
Physical Review B (R) 85, 180501 (2012) – Selected as Editors’ Suggestion

Disorder, Supersolidity, and Quantum Plasticity in Solid Helium 4

S. Balibar, A. D. Fefferman, A. Haziot, X. Rojas
Journal of Low Temperature Physics 168, 221 (2012)

4He Crystal Quality and Rotational Response in a Transparent Torsional Oscillator

A. D. Fefferman, X. Rojas, A. Haziot, S. Balibar, J. T. West and M. H. W. Chan
Physical Review B, 85, 094103 (2012)

ePrint: arXiv:1112.5998

Migration of 3He impurities along Dislocation Lines in 4He Single Crystals

X. Rojas, A. Haziot, S. Balibar
Journal of Physics : Conference Series 400, 012062 (2012)
2011

PhD thesis: Supersolidity and Quantum Plasticity

X. Rojas
available in french : https://tel.archives-ouvertes.fr/tel-00682098/

Quantum Crystals : From Quantum Plasticity to Supersolidity

S. Balibar, A. Haziot, X. Rojas
Proceeding of SPIE Vol. 7945, 794502 (2011)
2010

Anomalous Softening of Helium 4 Crystals

X. Rojas, A. Haziot, V. Bapst, H.J. Maris, and S. Balibar
Physical Review Letters 105, 145302 (2010)

How to Prepare an Ideal 4He Crystal

C. Pantalei, X. Rojas, D.O. Edwards, H.J. Maris, and S. Balibar
Journal of Low Temperature Physics 159, 452 (2010)

Acoustic Properties of 4He Crystals in the Limit of Zero Impurity

X. Rojas, C. Pantalei, H.J. Maris, and S. Balibar
Journal of Low Temperature Physics 158, 478 (2010)