64
8 Conclusions
8.1.3 Magnetic Fingerprints
Employing the technique of spin noise spectroscopy has revealed fingerprints of
magnetic monopole plasma in Dy 2 Ti 2 O 7 . This technology shows promise to the
detection of other exotic magnetic states such as spin liquids [13], fast monopoles
[14], quantum spin ices [15] etc.
References
1. A.A. Penzias, R.W. Wilson, A measurement of excess antenna temperature at 4080 mc/s.
Astrophys. J. 142, 419 (1965)
2. R. Dusad et al., Magnetic monopole noise. Nature 571, 234–239 (2019)
3. M. Ryzhkin, A. Klyuev, A. Yakimov, Statistics of fluctuations of magnetic monopole
concentration in spin ice. Fluctuation Noise Lett. 16, 1750035 (2017)
4. A. Yacoby, N. Yao, F.K.K. Kirschner, F. Flicker, S.J. Blundell, Proposal for the detection of
magnetic monopoles in spin ice via nanoscale magnetometry. Phys. Rev. B 97, 140402 (2018)
5. M. Cerdonio, A. Maraner, S. Vitale, A. Cavalleri, G.A. Prodi, Thermal equilibrium noise with
1/f spectrum in a ferromagnetic alloy: Anomalous temperature dependence. J. Appl. Phys. 76,
6332 (1998)
6. A.P. Malozemoff, M.B. Ketchen, W. Reim, R.H. Koch, H. Maletta, Magnetic equilibrium noise
in spin-glasses: Eu 0.4 sr 0.6 s. Phys. Rev. Lett. 57, 905 (1986)
7. R.E. Burgess, The statistics of charge carrier fluctuations in semiconductors. Proc. Phys. Soc.
B 69, 1020 (1956)
8. L. Reggiani, V. Mitin, L. Varani, Noise and Fluctuations Control in Electronic Devices,
Chapter 2 (American Scientific Publishers, 2002)
9. K.M. van Vliet, J.R. Fassett, Fluctuation Phenomena in Solids, edited by R. E. Burgess
(Academic Press, New York, 1965)
10. P. Holdsworth, L. Jaubert, Magnetic monopole dynamics in spin ice. J. Phys. Condens. Matter
23, 164222 (2011)
11. R. Moessner, C. Castelnovo, S. Sondhi, Spin ice, fractionalization, and topological order.
Annu. Rev. Condens. Matter Phys. 3, 35 (2012)
12. V. Kaiser et al., Emergent electrochemistry in spin ice: Debye-hückel theory and beyond. Phys.
Rev. B 98, 144413 (2018)
13. L. Balents, Spin liquids in frustrated magnets. Nature 464, 199 (2010)
14. S. Gao et al., Dipolar spin ice states with a fast monopole hopping rate in cder2x4 (x=se, s).
Phys. Rev. Lett. 120, 137201 (2018)
15. K. Kimura et al., Quantum fluctuations in spin-ice-like pr2zr2o7. Nature Communications 4,
1934 (2013)
8 Conclusions
8.1.3 Magnetic Fingerprints
Employing the technique of spin noise spectroscopy has revealed fingerprints of
magnetic monopole plasma in Dy 2 Ti 2 O 7 . This technology shows promise to the
detection of other exotic magnetic states such as spin liquids [13], fast monopoles
[14], quantum spin ices [15] etc.
References
1. A.A. Penzias, R.W. Wilson, A measurement of excess antenna temperature at 4080 mc/s.
Astrophys. J. 142, 419 (1965)
2. R. Dusad et al., Magnetic monopole noise. Nature 571, 234–239 (2019)
3. M. Ryzhkin, A. Klyuev, A. Yakimov, Statistics of fluctuations of magnetic monopole
concentration in spin ice. Fluctuation Noise Lett. 16, 1750035 (2017)
4. A. Yacoby, N. Yao, F.K.K. Kirschner, F. Flicker, S.J. Blundell, Proposal for the detection of
magnetic monopoles in spin ice via nanoscale magnetometry. Phys. Rev. B 97, 140402 (2018)
5. M. Cerdonio, A. Maraner, S. Vitale, A. Cavalleri, G.A. Prodi, Thermal equilibrium noise with
1/f spectrum in a ferromagnetic alloy: Anomalous temperature dependence. J. Appl. Phys. 76,
6332 (1998)
6. A.P. Malozemoff, M.B. Ketchen, W. Reim, R.H. Koch, H. Maletta, Magnetic equilibrium noise
in spin-glasses: Eu 0.4 sr 0.6 s. Phys. Rev. Lett. 57, 905 (1986)
7. R.E. Burgess, The statistics of charge carrier fluctuations in semiconductors. Proc. Phys. Soc.
B 69, 1020 (1956)
8. L. Reggiani, V. Mitin, L. Varani, Noise and Fluctuations Control in Electronic Devices,
Chapter 2 (American Scientific Publishers, 2002)
9. K.M. van Vliet, J.R. Fassett, Fluctuation Phenomena in Solids, edited by R. E. Burgess
(Academic Press, New York, 1965)
10. P. Holdsworth, L. Jaubert, Magnetic monopole dynamics in spin ice. J. Phys. Condens. Matter
23, 164222 (2011)
11. R. Moessner, C. Castelnovo, S. Sondhi, Spin ice, fractionalization, and topological order.
Annu. Rev. Condens. Matter Phys. 3, 35 (2012)
12. V. Kaiser et al., Emergent electrochemistry in spin ice: Debye-hückel theory and beyond. Phys.
Rev. B 98, 144413 (2018)
13. L. Balents, Spin liquids in frustrated magnets. Nature 464, 199 (2010)
14. S. Gao et al., Dipolar spin ice states with a fast monopole hopping rate in cder2x4 (x=se, s).
Phys. Rev. Lett. 120, 137201 (2018)
15. K. Kimura et al., Quantum fluctuations in spin-ice-like pr2zr2o7. Nature Communications 4,
1934 (2013)