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  • Michael Tobar

3D lumped LC resonators as low mass axion haloscopes

Mcallister, B., Parker, S. & Tobar, M., 11 Aug 2016, In : Physical Review D - Particles, Fields, Gravitation and Cosmology. 94, 4, p. 042001-1 - 042001-6

Research output: Contribution to journalArticle

Open Access
File
13 Citations (Scopus)
313 Downloads (Pure)

A 3D printed superconducting aluminium microwave cavity

Creedon, D. L., Goryachev, M., Kostylev, N., Sercombe, T. & Tobar, M., 2016, In : Applied Physics Letters. 109, 3, p. 032601-1 - 032601-4 032601.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Acoustic Tests of Lorentz Symmetry Using Quartz Oscillators

Lo, A., Haslinger, P., Mizrachi, E., Anderegg, L., Mueller, H., Hohensee, M., Goryachev, M. & Tobar, M., 24 Feb 2016, In : Physical Review X. 6, 1, 011018.

Research output: Contribution to journalArticle

Open Access
19 Citations (Scopus)

Adapting a cryogenic sapphire oscillator for very long baseline interferometry

Doeleman, S., Tai, M., Rogers, A. E. E., Hartnett, J., Tobar, M. & Nand, N. R., 2011, In : Publications of the Astronomical Society of the Pacific. 123, 903, p. 582-595

Research output: Contribution to journalArticle

23 Citations (Scopus)

Addressing a single spin in diamond with a macroscopic dielectric microwave cavity

Le Floch, J-M., Bradac, C., Nand, N. R., Castelletto, S. A., Tobar, M. & Volz, T., 29 Sep 2014, In : Applied Physics Letters. 105, 13, 3 p., 133101.

Research output: Contribution to journalArticle

Open Access
8 Citations (Scopus)
3 Citations (Scopus)

Analysis of the whispering gallery mode sapphire Fe 3+ maser under magnetic field

Mrad, M., Bourgeois, P. Y., Tobar, M., Kersalé, Y. & Giordano, V., 2012, In : EPJ Applied Physics. 57, p. 7pp

Research output: Contribution to journalArticle

2 Citations (Scopus)

A new method of probing mechanical losses of coatings at cryogenic temperatures

Galliou, S., Deléglise, S., Goryachev, M., Neuhaus, L., Cagnoli, G., Zerkani, S., Dolique, V., Bon, J., Vacheret, X., Abbé, P., Pinard, L., Michel, C., Karassouloff, T., Briant, T., Cohadon, P. F., Heidmann, A., Tobar, M. E. & Bourquin, R., 1 Dec 2016, In : Review of Scientific Instruments. 87, 12, 123906.

Research output: Contribution to journalArticle

Open Access
File
2 Citations (Scopus)
294 Downloads (Pure)

Anomalously strong nonlinearity of unswept quartz acoustic cavities at liquid helium temperatures

Goryachev, M., Farr, W. G., Ivanov, E. & Tobar, M., 2013, In : Journal of Applied Physics. 114, 9, p. 094506-1 - 094506-7

Research output: Contribution to journalArticle

7 Citations (Scopus)

An ultra-stable microwave transfer technique for the ACES and future space missions

Altman, N., Schediwy, S., McFerran, J., Tobar, M. & Luiten, A., May 2014, Proceedings of the 13th Australian Space Science Conference . Short, W. & Cairns, I. (eds.). Sydney: National Space Society of Australia Ltd., p. 161-170

Research output: Chapter in Book/Conference paperConference paper

2 Downloads (Pure)

A Simple Dual-Band Electromagnetic Band Gap Resonator Antenna Based on Inverted Reflection Phase Gradient

Zeb, B. A., Ge, Y., Esselle, K. P., Sun, Z. & Tobar, M., 2012, In : IEEE Transactions on Antennas and Propagation. 60, 10, p. 4522-4529

Research output: Contribution to journalArticle

56 Citations (Scopus)

Axion Dark Matter Coupling to Resonant Photons via Magnetic Field

Mcallister, B., Parker, S. & Tobar, M., 21 Apr 2016, In : Physical Review Letters. 116, 16, p. 161804-1-161804-5 161804.

Research output: Contribution to journalArticle

Open Access
File
21 Citations (Scopus)
339 Downloads (Pure)
12 Citations (Scopus)

Axion detection with precision frequency metrology

Goryachev, M., McAllister, B. T. & Tobar, M. E., 1 Dec 2019, In : Physics Of The Dark Universe. 26, 100345.

Research output: Contribution to journalArticle

2 Citations (Scopus)

Behavior of quartz crystal resonators at liquid helium temperature

Galliou, S., Abbé, P., Goryachev, M., Ivanov, E. N., Tobar, M. E. & Bourquin, R., 2016, 2016 European Frequency and Time Forum. Everard, J. (ed.). IEEE, Institute of Electrical and Electronics Engineers

Research output: Chapter in Book/Conference paperConference paper

Better than Brillouin

Bourhill, J. & Tobar, M., Jun 2018, In : Nature Physics. 14, 6, p. 531-532 2 p.

Research output: Contribution to journalArticle

Bounds on higher-order Lorentz-violating photon sector coefficients from an asymmetric optical ring resonator experiment

Parker, S., Mewes, M., Baynes, F. & Tobar, M., 30 Oct 2015, In : Physics Letters A. 379, 42, p. 2681-2684 4 p.

Research output: Contribution to journalArticle

Open Access
File
4 Citations (Scopus)
198 Downloads (Pure)

Broadening frequency range of a ferromagnetic axion haloscope with strongly coupled cavity–magnon polaritons

Flower, G., Bourhill, J., Goryachev, M. & Tobar, M. E., 1 Sep 2019, In : Physics Of The Dark Universe. 25, 100306.

Research output: Contribution to journalArticle

9 Citations (Scopus)

Bulk Acoustic Wave Resonator-Oscillators and Tests of Fundamental Physics

Goryachev, M., Ivanov, E. N., Tobar, M. E. & Galliou, S., 2019, IFCS/EFTF 2019 - Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum, Proceedings. IEEE, Institute of Electrical and Electronics Engineers, 8856114. (IFCS/EFTF 2019 - Joint Conference of the IEEE International Frequency Control Symposium and European Frequency and Time Forum, Proceedings).

Research output: Chapter in Book/Conference paperConference paper

Bulk acoustic wave resonator thermal noise measurements

Goryachev, M., Ivanov, E., Parker, S., Winterflood, J., Tobar, M. & Galliou, S., 2014, 2014 IEEE International Frequency Control Symposium Proceedings. Piscataway, NJ, USA: IEEE, Institute of Electrical and Electronics Engineers, Vol. 1. p. 50-52

Research output: Chapter in Book/Conference paperConference paper

Cavity bounds on higher-order lorentz-violating coefficients

Parker, S., Mewes, M., Stanwix, P. & Tobar, M., 2011, In : Physical Review Letters. 106, 18, p. 3pp

Research output: Contribution to journalArticle

18 Citations (Scopus)

Cavity constraints on isotropic shift and anisotropies of the speed of light

Stanwix, P. L., Parker, S. R., Tobar, M. E., Hohensee, M. A. A., Phillips, D. F. F. & Walsworth, R. L. L., 2011, Proceedings of the 5th Meeting on CPT and Lorentz Symmetry, (CPT 10) 2010. Kostelecky, V. A. (ed.). Bloomington, IN; United States: World Scientific Publishing, Vol. 1. p. 133-137 5 p.

Research output: Chapter in Book/Conference paperConference paper

Cavity magnon polaritons with lithium ferrite and three-dimensional microwave resonators at millikelvin temperatures

Goryachev, M., Watt, S., Bourhill, J., Kostylev, M. & Tobar, M. E., 13 Apr 2018, In : Physical Review B. 97, 15, 155129.

Research output: Contribution to journalArticle

12 Citations (Scopus)

Collective behavior of Cr3+ ions in ruby revealed by whispering gallery modes

Bourhill, J., Goryachev, M., Farr, W. G. & Tobar, M., 4 Aug 2015, In : Physical Review A - Atomic, Molecular, and Optical Physics. 92, 2, p. 023805-1 - 023805-5 023805 .

Research output: Contribution to journalArticle

1 Citation (Scopus)

Combined Search for a Lorentz-Violating Force in Short-Range Gravity Varying as the Inverse Sixth Power of Distance

Shao, C-G., Chen, Y-F., Tan, Y-J., Yang, S-Q., Luo, J., Tobar, M. E., Long, J. C., Weisman, E. & Kostelecky, V. A., 10 Jan 2019, In : Physical Review Letters. 122, 1, 7 p., 011102.

Research output: Contribution to journalArticle

8 Citations (Scopus)

Combined Search for Lorentz Violation in Short-Range Gravity

Shao, C. G., Tan, Y. J., Tan, W. H., Yang, S. Q., Luo, J., Tobar, M., Bailey, Q. G., Long, J. C., Weisman, E., Xu, R. & Kostelecký, V. A., 10 Aug 2016, In : Physical Review Letters. 117, 7, p. 071102-1 - 071102-6

Research output: Contribution to journalArticle

Open Access
File
34 Citations (Scopus)
372 Downloads (Pure)

Compact hollow-core photonic band gap resonator with optimised metallic cavity at microwave frequencies

Férachou, D., Humbert, G., Le Floch, J-M., Aubourg, M., Auguste, J-L., Tobar, M., Cros, D. & Blondy, J-M., 2011, In : Electronics Letters. 47, 14, p. 805 - 807

Research output: Contribution to journalArticle

6 Citations (Scopus)
Open Access
File
12 Citations (Scopus)
548 Downloads (Pure)

Controlling the frequency-temperature sensitivity of a cryogenic sapphire maser frequency standard by manipulating Fe3 + spins in the sapphire lattice

Benmessai, K., Creedon, D., Le Floch, J-M., Tobar, M., Mrad, M., Bourgeois, P-Y., Kersalé, Y. & Giordano, V., 2012, In : Physical Review B - Condensed Matter and Materials Physics. 85, 7, p. 7pp

Research output: Contribution to journalArticle

8 Citations (Scopus)

Creating tuneable microwave media from a two-dimensional lattice of re-entrant posts

Goryachev, M. & Tobar, M., 24 Nov 2015, In : Journal of Applied Physics. 118, 20, p. 204504-1 - 204504-8 8 p.

Research output: Contribution to journalArticle

6 Citations (Scopus)

Cryogenic optomechanics and the resurgence of the resonant-mass gravitational wave detector

Tobar, M. E., 13 Sep 2017, In : New Journal of Physics. 19, 2 p., 091001.

Research output: Contribution to journalEditorial

Open Access

Cryogenic resonant microwave cavity searches for hidden sector photons

Parker, S., Hartnett, J., Povey, R. G. & Tobar, M., 2013, In : Physical Review D - Particles, Fields, Gravitation and Cosmology. 88, 11, p. 5pp

Research output: Contribution to journalArticle

14 Citations (Scopus)

Current limitations of cryogenic microwave oscillator frequency stability

Parker, S., Ivanov, E., Tobar, M. & Hartnett, J. G., 2014, IFCS 2014 - 2014 IEEE International Frequency Control Symposium, Proceedings.

Research output: Chapter in Book/Conference paperConference paper

Determination of low loss in isotopically pure single crystal 28Si at low temperatures and single microwave photon energy

Kostylev, N., Goryachev, M., Bulanov, A. D., Gavva, V. A. & Tobar, M. E., 20 Mar 2017, In : Scientific Reports. 7, 44813.

Research output: Contribution to journalArticle

Open Access

Direct terrestrial test of Lorentz symmetry in electrodynamics to 10-18

Nagel, M., Parker, S., Kovalchuk, E. V., Stanwix, P., Hartnett, J., Ivanov, E., Peters, A. & Tobar, M., 1 Sep 2015, In : Nature Communications. 6, p. 1-6

Research output: Contribution to journalArticle

Open Access
45 Citations (Scopus)

Discovery of iron group impurity ion spin states in single crystal Y2SiO5 with strong coupling to whispering gallery photons

Goryachev, M., Farr, W. G., Carmo Carvalho, N. D., Creedon, D., Le Floch, J-M., Probst, S., Bushev, P. & Tobar, M., 8 Jun 2015, In : Applied Physics Letters. 106, 23, p. 232401-1 - 232401-5

Research output: Contribution to journalArticle

Open Access
File
10 Citations (Scopus)
211 Downloads (Pure)

Effects of geometry on quantum fluctuations of phonon-trapping acoustic cavities

Goryachev, M. & Tobar, M., 4 Aug 2014, In : New Journal of Physics. 16, p. 083007

Research output: Contribution to journalArticle

Open Access
File
12 Citations (Scopus)
219 Downloads (Pure)

Electrodynamic improvements to the theory of magnetostatic modes in ferrimagnetic spheres and their applications to saturation magnetization measurements

Krupka, J., Pacewicz, A., Salski, B., Kopyt, P., Bourhill, J., Goryachev, M. & Tobar, M., 1 Oct 2019, In : Journal of Magnetism and Magnetic Materials. 487, 165331.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Electromagnetic properties of polycrystalline diamond from 35 K to room temperature and microwave to terahertz frequencies

Floch, J-M., Bara, R., Hartnett, J., Tobar, M., Mouneyrac, D., Passerieux, D., Cros, D., Krupka, J., Goy, P. & Caroopen, S., 2011, In : Journal of Applied Physics. 109, 9, p. 6pp

Research output: Contribution to journalArticle

10 Citations (Scopus)

Electromagnetic properties of terbium gallium garnet at millikelvin temperatures and low photon energy

Kostylev, N., Goryachev, M., Bushev, P. & Tobar, M. E., 31 Jul 2017, In : Applied Physics Letters. 111, 5, 052402.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Enhanced sensitivity to Lorentz invariance violations in short-range gravity experiments

Shao, C. G., Chen, Y. F., Tan, Y. J., Luo, J., Yang, S. Q. & Tobar, M. E., 2016, In : Physical Review D - Particles, Fields, Gravitation and Cosmology. 94, 10, 104061.

Research output: Contribution to journalArticle

11 Citations (Scopus)

Evidence of dilute ferromagnetism in rare-earth doped yttrium aluminium garnet

Farr, W. G., Goryachev, M., Le Floch, J-M., Bushev, P. & Tobar, M., 21 Sep 2015, In : Applied Physics Letters. 107, 12, p. 122401-1 - 122401-5

Research output: Contribution to journalArticle

Open Access
File
9 Citations (Scopus)
221 Downloads (Pure)

Experimental implementation of a large scale multipost re-entrant array

Goryachev, M., Jeong, J. & Tobar, M. E., 1 May 2019, In : Applied Physics Express. 12, 5, 4 p., 054002.

Research output: Contribution to journalArticle

Experimental implementations of cavity-magnon systems: from ultra strong coupling to applications in precision measurement

Flower, G., Goryachev, M., Bourhill, E. & Tobar, M. E., 12 Sep 2019, In : New Journal of Physics. 21, 11 p., 095004.

Research output: Contribution to journalArticle

Open Access
1 Citation (Scopus)

Experimental realization of an optical second with strontium lattice clocks

Le Targat, R., Lorini, L., Le Coq, Y., Zawada, M., Guéna, J., Abgrall, M., Gurov, M., Rosenbusch, P., Rovera, D. G., Nagórny, B., Gartman, R., Westergaard, P. G., Tobar, M., Lours, M., Santarelli, G., Clairon, A., Bize, S., Laurent, P., Lemonde, P. & Lodewyck, J., 2013, In : Nature Communications. 4, p. 8pp

Research output: Contribution to journalArticle

164 Citations (Scopus)

Experiments match simulations in a multiple post reentrant cavity

De Paula, L. A. N., Goryachev, M. & Tobar, M. E., 1 Dec 2017, In : Review of Scientific Instruments. 88, 12, 125104.

Research output: Contribution to journalArticle

1 Citation (Scopus)

Extremely high Q-factor mechanical modes in quartz bulk acoustic wave resonators at millikelvin temperature

Goryachev, M., Creedon, D., Ivanov, E., Galliou, S., Bourquin, R. & Tobar, M., 2014, Eleventh International Conference on Quantum Communication, Measurement and Computation (QCMC). Vol. 1633. p. 90-92

Research output: Chapter in Book/Conference paperConference paper