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Pregled bibliografske jedinice broj: 690599

Low-temperature NMR study of YbAlB4


Grbić, Mihael Srđan; Kimura, Kentaro; Takano, Shun; Tajima, K.; Yoshida, Makoto; Takigawa, Masashi; Kuga, Kentaro; O’Farrell, Eoin C. T. Nakatsuji, Satoru
Low-temperature NMR study of YbAlB4 // Abstracts of Quantum criticality and valence fluctuations in strongly correlated electron systems
Kašiva, Japan, 2013. str. 4-5 (predavanje, nije recenziran, sažetak, znanstveni)


CROSBI ID: 690599 Za ispravke kontaktirajte CROSBI podršku putem web obrasca

Naslov
Low-temperature NMR study of YbAlB4

Autori
Grbić, Mihael Srđan ; Kimura, Kentaro ; Takano, Shun ; Tajima, K. ; Yoshida, Makoto ; Takigawa, Masashi ; Kuga, Kentaro ; O’Farrell, Eoin C. T. Nakatsuji, Satoru

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
Abstracts of Quantum criticality and valence fluctuations in strongly correlated electron systems / - , 2013, 4-5

Skup
Quantum criticality and valence fluctuations in strongly correlated electron systems

Mjesto i datum
Kašiva, Japan, 25.-26.2.2013

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Nije recenziran

Ključne riječi
valence fluctuation; ytterbium; nmr

Sažetak
Quantum critical behavior is a perfect playground of condensed matter physics as it can lead to discovery of new phases of matter and better understanding of strongly correlated systems. Two structural isomorphs of YbAlB4 ( and  ), show an interesting sensitivity of quantum criticality on local symmetry of B ring which encircles the Yb ion. While at ambient pressure and zero magnetic field  -YbAlB4 shows non-Fermi-liquid properties of quantum criticality [1],  -YbAlB4 has a Fermi-liquid ground state. We will present most recent results of an NMR study in both compounds, in particular the low temperature behavior of the spin-lattice relaxation rate. While in  -YbAlB4 magnetic field suppresses quantum criticality, in  -YbAlB4 at finite magnetic field we find a clear change from the Fermi-liquid temperature dependence to a divergent non-Fermi-liquid behavior. Existence of a quantum critical point in both isomorphs is a stringent constraint for possible mechanisms of the Kondo-lattice physics in these compounds. [1] Y. Matsumoto, S. Nakatsuji et al., Science 331, 316 (2011).

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
119-1191458-1022 - Mikrovalna istraživanja novih materijala (Požek, Miroslav, MZOS ) ( POIROT)

Ustanove:
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Mihael Srđan Grbić (autor)

Citiraj ovu publikaciju

Grbić, Mihael Srđan; Kimura, Kentaro; Takano, Shun; Tajima, K.; Yoshida, Makoto; Takigawa, Masashi; Kuga, Kentaro; O’Farrell, Eoin C. T. Nakatsuji, Satoru
Low-temperature NMR study of YbAlB4 // Abstracts of Quantum criticality and valence fluctuations in strongly correlated electron systems
Kašiva, Japan, 2013. str. 4-5 (predavanje, nije recenziran, sažetak, znanstveni)
Grbić, M., Kimura, K., Takano, S., Tajima, K., Yoshida, M., Takigawa, M., Kuga, K. & O’Farrell, Eoin C. T. Nakatsuji, Satoru (2013) Low-temperature NMR study of YbAlB4. U: Abstracts of Quantum criticality and valence fluctuations in strongly correlated electron systems.
@article{article, year = {2013}, pages = {4-5}, keywords = {valence fluctuation, ytterbium, nmr}, title = {Low-temperature NMR study of YbAlB4}, keyword = {valence fluctuation, ytterbium, nmr}, publisherplace = {Ka\v{s}iva, Japan} }
@article{article, year = {2013}, pages = {4-5}, keywords = {valence fluctuation, ytterbium, nmr}, title = {Low-temperature NMR study of YbAlB4}, keyword = {valence fluctuation, ytterbium, nmr}, publisherplace = {Ka\v{s}iva, Japan} }




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