| 1. | Astner, T; Gugler, J; Angerer, A; Wald, S; Putz, S; Mauser, N J; Trupke, M; Sumiya, H; Onoda, S; Isoya, J; Schmiedmayer, J; Mohn, P; Majer, J Solid-state electron spin lifetime limited by phononic vacuum modes Journal Article In: Nature Materials, 17 (4), pp. 313-317, 2018, ISSN: 1476-4660. Abstract | Links | BibTeX @article{Astner2018,
title = {Solid-state electron spin lifetime limited by phononic vacuum modes},
author = {T. Astner and J. Gugler and A. Angerer and S. Wald and S. Putz and N.J. Mauser and M. Trupke and H. Sumiya and S. Onoda and J. Isoya and J. Schmiedmayer and P. Mohn and J. Majer},
url = {https://doi.org/10.1038/s41563-017-0008-y},
doi = {10.1038/s41563-017-0008-y},
issn = {1476-4660},
year = {2018},
date = {2018-02-12},
journal = {Nature Materials},
volume = {17},
number = {4},
pages = {313-317},
abstract = {Longitudinal relaxation is the process by which an excited spin ensemble decays into its thermal equilibrium with the environment. In solid-state spin systems, relaxation into the phonon bath usually dominates over the coupling to the electromagnetic vacuum1-9. In the quantum limit, the spin lifetime is determined by phononic vacuum fluctuations 10 . However, this limit was not observed in previous studies due to thermal phonon contributions11-13 or phonon-bottleneck processes10, 14,15. Here we use a dispersive detection scheme16,17 based on cavity quantum electrodynamics18-21 to observe this quantum limit of spin relaxation of the negatively charged nitrogen vacancy (NV-) centre 22 in diamond. Diamond possesses high thermal conductivity even at low temperatures 23 , which eliminates phonon-bottleneck processes. We observe exceptionally long longitudinal relaxation times T1 of up to 8 h. To understand the fundamental mechanism of spin-phonon coupling in this system we develop a theoretical model and calculate the relaxation time ab initio. The calculations confirm that the low phononic density of states at the NV- transition frequency enables the spin polarization to survive over macroscopic timescales.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
Longitudinal relaxation is the process by which an excited spin ensemble decays into its thermal equilibrium with the environment. In solid-state spin systems, relaxation into the phonon bath usually dominates over the coupling to the electromagnetic vacuum1-9. In the quantum limit, the spin lifetime is determined by phononic vacuum fluctuations 10 . However, this limit was not observed in previous studies due to thermal phonon contributions11-13 or phonon-bottleneck processes10, 14,15. Here we use a dispersive detection scheme16,17 based on cavity quantum electrodynamics18-21 to observe this quantum limit of spin relaxation of the negatively charged nitrogen vacancy (NV-) centre 22 in diamond. Diamond possesses high thermal conductivity even at low temperatures 23 , which eliminates phonon-bottleneck processes. We observe exceptionally long longitudinal relaxation times T1 of up to 8 h. To understand the fundamental mechanism of spin-phonon coupling in this system we develop a theoretical model and calculate the relaxation time ab initio. The calculations confirm that the low phononic density of states at the NV- transition frequency enables the spin polarization to survive over macroscopic timescales. |
| 2. | Laskowski, R; Khoo, K; Haarmann, F; Blaha, P Computational Study of Ga NMR Shielding in Metallic Gallides Journal Article In: The Journal of Physical Chemistry C, 121 , pp. 753 - 760., 2017. Links | BibTeX @article{TheJournalofPhysicalChemistryC._121_753-760.,
title = {Computational Study of Ga NMR Shielding in Metallic Gallides},
author = {R. Laskowski and K. Khoo and F. Haarmann and P. Blaha},
url = {http://publik.tuwien.ac.at/files/publik_258189.pdf},
year = {2017},
date = {2017-01-01},
journal = {The Journal of Physical Chemistry C},
volume = {121},
pages = {753 - 760.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 3. | Khmelevskyi, S; Simon, E; Szunyogh, L; Mohn, P Microscopic origin of ferro-antiferromagnetic transition uponnon-magnetic substitution in Ru2(Mn1-x Vx)Ge full Heusler alloys Journal Article In: Journal of Alloys and Compounds, 692 , pp. S. 178 - 182., 2017. Links | BibTeX @article{JournalofAlloysandCompounds._692_S.178-182.,
title = {Microscopic origin of ferro-antiferromagnetic transition uponnon-magnetic substitution in Ru_{2}(Mn_{1-x} V_{x})Ge full Heusler alloys},
author = {S. Khmelevskyi and E. Simon and L. Szunyogh and P. Mohn},
url = {/files/publications/jac_692_178_2017.pdf},
year = {2017},
date = {2017-01-01},
journal = {Journal of Alloys and Compounds},
volume = {692},
pages = {S. 178 - 182.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 4. | Li, G; Yan, B; Wang, Z; Held, K Topological Dirac semimetal phase in Pd and Pt oxides Journal Article In: Phys. Rev. B, 95 , pp. 035102, 2017. Links | BibTeX @article{Phys.Rev.B_95_035102,
title = {Topological Dirac semimetal phase in Pd and Pt oxides},
author = {G. Li and B. Yan and Z. Wang and K. Held},
url = {http://journals.aps.org/prb/abstract/10.1103/PhysRevB.95.035102},
year = {2017},
date = {2017-01-01},
journal = {Phys. Rev. B},
volume = {95},
pages = {035102},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 5. | Nagy, A; Schwarz, K Special Issue 50th Anniversary of the Kohn-Sham Theory-Advances in Density Functional Theory Journal Article In: Computation, 4 , pp. 45., 2016. Links | BibTeX @article{Computation._4_45.,
title = {Special Issue 50th Anniversary of the Kohn-Sham Theory-Advances in Density Functional Theory},
author = {A. Nagy and K. Schwarz},
url = {http://publik.tuwien.ac.at/files/publik_252757.pdf},
year = {2016},
date = {2016-01-01},
journal = {Computation},
volume = {4},
pages = {45.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 6. | Schwarz, K; Sham, L; Mattsson, A; Scheffler, M Obituary for Walter Kohn (1923-2016) Journal Article In: Computation, 4 , pp. 40., 2016. Links | BibTeX @article{Computation._4_40.,
title = {Obituary for Walter Kohn (1923-2016)},
author = {K. Schwarz and L. Sham and A. Mattsson and M. Scheffler},
url = {http://publik.tuwien.ac.at/files/PubDat_251982.pdf},
year = {2016},
date = {2016-01-01},
journal = {Computation},
volume = {4},
pages = {40.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 7. | Bliem, R; van der Hoeven, J; Hulva, J; Pavelec, J; Vasquez, Gamba O; de Jongh, P; Schmid, M; Blaha, P; Diebold, U; Parkinson, G Dual role of CO in the stability of subnano Pt clusters at the Fe3O4(001) surface Journal Article In: PNAS, 113 , pp. 8921 - 8926., 2016. Links | BibTeX @article{PNAS._113_8921-8926.,
title = {Dual role of CO in the stability of subnano Pt clusters at the Fe_{3}O_{4}(001) surface},
author = {R. Bliem and J. van der Hoeven and J. Hulva and J. Pavelec and O. Gamba Vasquez and P. de Jongh and M. Schmid and P. Blaha and U. Diebold and G. Parkinson},
url = {http://publik.tuwien.ac.at/files/PubDat_250745.pdf},
year = {2016},
date = {2016-01-01},
journal = {PNAS},
volume = {113},
pages = {8921 - 8926.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 8. | Wissgott, P; Held, K Electronic structure of CeRu4Sn6 a density functional plus dynamical mean field theory study Journal Article In: Eur. Phys. J. B., 89 , pp. 5, 2016. Links | BibTeX @article{Eur.Phys.J.B._89_5,
title = {Electronic structure of CeRu_{4}Sn_{6} a density functional plus dynamical mean field theory study},
author = {P. Wissgott and K. Held},
url = {http://link.springer.com/article/10.1140%2Fepjb%2Fe2015-60753-5},
year = {2016},
date = {2016-01-01},
journal = {Eur. Phys. J. B.},
volume = {89},
pages = {5},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 9. | Tereshina, I; Chzhan, V; Tereshina, E; Khmelevskyi, S; Burkhanov, G; Illyushin, A; Paukov, M; Havela, L; Karpenkov, A; Cwik, J; Koshkid'Ko, Y; Miller, M; Nenkov, K; Schultz, L Magnetostructural phase transitions and magnetocaloric effect in Tb-Dy-Ho-Co-Al alloys with a Laves phase structure Journal Article In: Journal of Applied Physics, 120 , pp. S. 0139011 - 01390110., 2016. Links | BibTeX @article{JournalofAppliedPhysics._120_S.0139011-01390110.,
title = {Magnetostructural phase transitions and magnetocaloric effect in Tb-Dy-Ho-Co-Al alloys with a Laves phase structure},
author = {I. Tereshina and V. Chzhan and E. Tereshina and S. Khmelevskyi and G. Burkhanov and A. Illyushin and M. Paukov and L. Havela and A. Karpenkov and J. Cwik and Y. Koshkid'Ko and M. Miller and K. Nenkov and L. Schultz},
url = {/files/publications/jap_120_0139011_2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Journal of Applied Physics},
volume = {120},
pages = {S. 0139011 - 01390110.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 10. | Atanelov, J; Mohn, P The electronic and magnetic properties of anion doped (C, N, S) GaFeO3 an ab initio DFT study Journal Article In: Computational Materials Science, 117 , pp. S. 380 - 389., 2016. Links | BibTeX @article{ComputationalMaterialsScience._117_S.380-389.,
title = {The electronic and magnetic properties of anion doped (C, N, S) GaFeO_{3} an ab initio DFT study},
author = {J. Atanelov and P. Mohn},
url = {/files/publications/cms_117_380_2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Computational Materials Science},
volume = {117},
pages = {S. 380 - 389.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 11. | Schwanzer, D F; Coslovich, D; Kahl, G Two-dimensional systems with competing interactions dynamic properties of single particles and of clusters Journal Article In: Journal of Physics Condensed Matter, 28 , pp. 414015, 2016. Links | BibTeX @article{JournalofPhysicsCondensedMatter_28_414015,
title = {Two-dimensional systems with competing interactions dynamic properties of single particles and of clusters},
author = {D. F. Schwanzer and D. Coslovich and G. Kahl},
url = {http://iopscience.iop.org/article/10.1088/0953-8984/28/41/414015},
year = {2016},
date = {2016-01-01},
journal = {Journal of Physics Condensed Matter},
volume = {28},
pages = {414015},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 12. | Ciach, A; Hall, C K; Kahl, G; Lomba, E Fifty years of liquid state physics Journal Article In: Journal of Physics Condensed Matter, 28 , pp. 410301, 2016. Links | BibTeX @article{JournalofPhysicsCondensedMatter_28_410301,
title = {Fifty years of liquid state physics},
author = {A. Ciach and C. K. Hall and G. Kahl and E. Lomba},
url = {http://iopscience.iop.org/article/10.1088/0953-8984/28/41/410301},
year = {2016},
date = {2016-01-01},
journal = {Journal of Physics Condensed Matter},
volume = {28},
pages = {410301},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 13. | Ciach, A; Hall, C K; Kahl, G; Lomba, E George Stell (1933 - 2014) Journal Article In: Journal of Physics Condensed Matter, 28 , pp. 410401, 2016. Links | BibTeX @article{JournalofPhysicsCondensedMatter_28_410401,
title = {George Stell (1933 - 2014)},
author = {A. Ciach and C. K. Hall and G. Kahl and E. Lomba},
url = {http://iopscience.iop.org/article/10.1088/0953-8984/28/41/410401},
year = {2016},
date = {2016-01-01},
journal = {Journal of Physics Condensed Matter},
volume = {28},
pages = {410401},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 14. | Tran, F; Stelzl, J; Blaha, P Rungs 1 to 4 of DFT Jacob's ladder Extensive test on the lattice constant, bulk modulus, and cohesive energy of solids Journal Article In: Journal of Chemical Physics, 144 , pp. 204120., 2016. Links | BibTeX @article{JournalofChemicalPhysics._144_204120.,
title = {Rungs 1 to 4 of DFT Jacob's ladder Extensive test on the lattice constant, bulk modulus, and cohesive energy of solids},
author = {F. Tran and J. Stelzl and P. Blaha},
url = {http://publik.tuwien.ac.at/files/PubDat_249446.pdf},
year = {2016},
date = {2016-01-01},
journal = {Journal of Chemical Physics},
volume = {144},
pages = {204120.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 15. | Gargallo-Caballero, R; Martin-Garcia, L; Quesada, A; Granados-Miralles, C; Foerster, M; Aballe, L; Bliem, R; Parkinson, G; Blaha, P; Marco, J; de la Figuera, J Co on Fe3O4(001) Towards precise control of surface properties Journal Article In: Journal of Chemical Physics, 144 , pp. 094704., 2016. Links | BibTeX @article{JournalofChemicalPhysics._144_094704.,
title = {Co on Fe_{3}O_{4}(001) Towards precise control of surface properties},
author = {R. Gargallo-Caballero and L. Martin-Garcia and A. Quesada and C. Granados-Miralles and M. Foerster and L. Aballe and R. Bliem and G. Parkinson and P. Blaha and J. Marco and J. de la Figuera},
url = {http://publik.tuwien.ac.at/files/PubDat_248942.pdf},
year = {2016},
date = {2016-01-01},
journal = {Journal of Chemical Physics},
volume = {144},
pages = {094704.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 16. | Wang, Z; Loon, A; Subramanian, A; Gerhold, S; McDermott, E; Enterkin, J; Hieckel, M; Russell, B; Green, R; Moewes, A; Guo, J; Blaha, P; Castell, M; Diebold, U; Marks, L Transition from Reconstruction toward Thin Film on the (110) Surface of Strontium Titanate Journal Article In: Nano Letters, 16 , pp. 2407 - 2412., 2016. Links | BibTeX @article{NanoLetters._16_2407-2412.b,
title = {Transition from Reconstruction toward Thin Film on the (110) Surface of Strontium Titanate},
author = {Z. Wang and A. Loon and A. Subramanian and S. Gerhold and E. McDermott and J. Enterkin and M. Hieckel and B. Russell and R. Green and A. Moewes and J. Guo and P. Blaha and M. Castell and U. Diebold and L. Marks},
url = {http://publik.tuwien.ac.at/files/PubDat_248883.pdf},
year = {2016},
date = {2016-01-01},
journal = {Nano Letters},
volume = {16},
pages = {2407 - 2412.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 17. | Heinemann, T; Antlanger, M; Mazars, M; Klapp, S H L; Kahl, G Equilibrium structures of anisometric, quadrupolar particles confined to a monolayer Journal Article In: The Journal of Chemical Physics, 144 , pp. 074504, 2016. Links | BibTeX @article{TheJournalofChemicalPhysics_144_074504,
title = {Equilibrium structures of anisometric, quadrupolar particles confined to a monolayer},
author = {T. Heinemann and M. Antlanger and M. Mazars and S. H. L. Klapp and G. Kahl},
url = {http://aip.scitation.org/doi/full/10.1063/1.4941585},
doi = {10.1063/1.4941585},
year = {2016},
date = {2016-01-01},
journal = {The Journal of Chemical Physics},
volume = {144},
pages = {074504},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 18. | Khmelevskyi, S; Shick, A B; Mohn, P Prospect for tunnelling anisotropic magneto-resistance in ferri-magnets Spin-orbit coupling effects in Mn3Ge and Mn3Ga Journal Article In: Applied Physics Letters, 109 , pp. S. 2224021 - 2224024., 2016. Links | BibTeX @article{AppliedPhysicsLetters._109_S.2224021-2224024.,
title = {Prospect for tunnelling anisotropic magneto-resistance in ferri-magnets Spin-orbit coupling effects in Mn_{3}Ge and Mn_{3}Ga},
author = {S. Khmelevskyi and A.B. Shick and P. Mohn},
url = {/files/publications/apl_109_2224021_2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Applied Physics Letters},
volume = {109},
pages = {S. 2224021 - 2224024.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 19. | Wolloch, M; Gruner, M; Keune, W; Mohn, P; Redinger, J; Hofer, F; Suess, D; Podloucky, R; Landers, J; Salamon, S; Scheibel, F; Spoddig, D; Witte, R; Cuenya, Roldan B; Gutfleisch, O; Hu, M; Zhao, J; Toellner, T; Alp, E; Siewert, M; Entel, P; Pentcheva, R; Wende, H Impact of lattice dynamics on the phase stability of metamagnetic FeRh Bulk and thin Films Journal Article In: Physical Review B, 94 , pp. S. 1744351 - 17443517., 2016. Links | BibTeX @article{PhysicalReviewB._94_S.1744351-17443517.,
title = {Impact of lattice dynamics on the phase stability of metamagnetic FeRh Bulk and thin Films},
author = {M. Wolloch and M. Gruner and W. Keune and P. Mohn and J. Redinger and F. Hofer and D. Suess and R. Podloucky and J. Landers and S. Salamon and F. Scheibel and D. Spoddig and R. Witte and B. Roldan Cuenya and O. Gutfleisch and M. Hu and J. Zhao and T. Toellner and E. Alp and M. Siewert and P. Entel and R. Pentcheva and H. Wende},
url = {/files/publications/PRB_94_1744351_2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Physical Review B},
volume = {94},
pages = {S. 1744351 - 17443517.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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| 20. | Steiner, S; Khmelevskyi, S; Marsman, M; Kresse, G Calculation of the magnetic anisotropy with projected-augmented-wave methodology and the case study of disordered Fe1-xCox alloys Journal Article In: Physical Review B, 93 , pp. S. 2244251 - 2244256., 2016. Links | BibTeX @article{PhysicalReviewB._93_S.2244251-2244256.,
title = {Calculation of the magnetic anisotropy with projected-augmented-wave methodology and the case study of disordered Fe_{1-x}Co_{x} alloys},
author = {S. Steiner and S. Khmelevskyi and M. Marsman and G. Kresse},
url = {/files/publications/PRB_93_224425_2016.pdf},
year = {2016},
date = {2016-01-01},
journal = {Physical Review B},
volume = {93},
pages = {S. 2244251 - 2244256.},
keywords = {},
pubstate = {published},
tppubtype = {article}
}
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