Zobrazeno 1 - 10
of 3 705
pro vyhledávání: '"Fisk, Z"'
Publikováno v:
New Physics: Sae Mulli, vol. 73, No. 12 December 2023, pp.1023-1036
Reports of unconventional superconductivity in UBe13 in 1983 and soon thereafter of the possible coexistence of bulk superconductivity and spin fluctuations in UPt3 marked the beginning of a 40-year adventure in the study of strongly correlated quant
Externí odkaz:
http://arxiv.org/abs/2312.14283
Autor:
Tay, D., Shang, T., Rosa, Priscila F. S., Santos, F. B., Thompson, J. D., Fisk, Z., Ott, H. -R., Shiroka, T.
Publikováno v:
Phys. Rev. B 107, 064507 (2023) (Editors' Suggestion)
The ThIrSi superconductor, with $T_c = 6.5$ K, is expected to show unusual features in view of its noncentrosymmetric structure and the presence of heavy elements featuring a sizable spin-orbit coupling. Here, we report a comprehensive study of its e
Externí odkaz:
http://arxiv.org/abs/2302.08075
Autor:
Seo, Soonbeom, Luo, Yongkang, Thomas, S. M., Fisk, Z., Erten, O., Riseborough, P. S., Ronning, F., Thompson, J. D., Rosa, P. F. S.
Publikováno v:
Phys. Rev. B 105, 245150 (2022)
The proposed topological Kondo insulator SmB$_{6}$ hosts a bulk Kondo hybridization gap that stems from strong electronic correlations and a metallic surface state whose effective mass remains disputed. Thermopower and scanning tunneling spectroscopy
Externí odkaz:
http://arxiv.org/abs/2207.08381
Autor:
Carlone, M., Souza, J. C., Sichelschmidt, J., Rosa, P. F. S., Urbano, R. R., Pagliuso, P. G., Fisk, Z., Venegas, P. A., Schlottmann, P., Rettori, C.
This work reports on the temperature dependence of the electron spin resonance (ESR) of Gd$^{3+}$-doped SmB$_{6}$ single crystals at X- and Q-band microwave frequencies in different crystallographic directions. We found an anomalous inhomogeneous bro
Externí odkaz:
http://arxiv.org/abs/2201.10940
Autor:
Souza, J. C., König, M., Crivillero, M. V. Ale, Malcolms, M. O., Urbano, R. R., Fisk, Z., Rosa, P. F. S., Pagliuso, P. G., Wirth, S., Sichelschmidt, J.
Publikováno v:
Phys. Rev. Research 3, 033016 (2021)
The interplay between non-trivial topological states of matter and strong electronic correlations is one of the most compelling open questions in condensed matter physics. Due to experimental challenges, there is an increasing desire to find more mic
Externí odkaz:
http://arxiv.org/abs/2106.05217
Autor:
Crivillero, M. Victoria Ale, Rößler, Sahana, Borrmann, H., Dawczak-Dȩbicki, H., Rosa, Priscila F. S., Fisk, Z., Wirth, S.
Publikováno v:
Phys. Rev. Materials 5, 044204 (2021)
We investigate flux-grown Sm-deficient Sm$_x$B$_6$ ($x < 1$) by global and local tools, including X-ray diffraction (XRD), electronic transport, and scanning tunneling microscopy (STM) and spectroscopy (STS). All these tools indicate a remarkable per
Externí odkaz:
http://arxiv.org/abs/2105.14916
Autor:
Crivillero, M. Victoria Ale, König, M., Souza, J. C., Pagliuso, P. G., Sichelschmidt, J., Rosa, Priscila F. S., Fisk, Z., Wirth, S.
We show that the resistivity plateau of SmB$_6$ at low temperature, typically taken as a hallmark of its conducting surface state, can systematically be influenced by different surface treatments. We investigate the effect of inflicting an increasing
Externí odkaz:
http://arxiv.org/abs/2105.13057
Autor:
Souza, J. C., Rosa, P. F. S., Sichelschmidt, J., Carlone, M., Venegas, P. A., Malcolms, M. O., Menegasso, P. M., Urbano, R. R., Fisk, Z., Pagliuso, P. G.
The predicted interplay between Kondo physics and non-trivial topology in SmB$_{6}$ has stimulated many experimental reports, some of which are in apparent contradiction. The origin of the dispute may lie on the fragility of the Kondo insulating phas
Externí odkaz:
http://arxiv.org/abs/2010.03719
Autor:
Wirth, S., Rößler, Sahana, Jiao, Lin, Crivillero, M. Victoria Ale, Rosa, Priscila F. S., Fisk, Z.
We compare STM investigations on two hexaboride compounds, SmB$_6$ and EuB$_6$, in an effort to provide a comprehensive picture of their surface structural properties. The latter is of particular importance for studying the nature of the surface stat
Externí odkaz:
http://arxiv.org/abs/2003.03224
Autor:
Souza, J. C., Rosa, P. F. S., Burkhardt, U., Konig, M., Fisk, Z., Pagliuso, P. G., Wirth, S., Sichelschmidt, J.
The search for topological states in strongly correlated electron systems has renewed the interest in the Kondo insulator SmB6. One of the most intriguing previous results was an anomalous electron spin resonance spectrum in Gd-doped SmB6. This spect
Externí odkaz:
http://arxiv.org/abs/2002.04572