Zobrazeno 1 - 10
of 755
pro vyhledávání: '"Stockert, O"'
Publikováno v:
Phys. Rev. Research 6, 023112 (2024)
In CePdAl, the 4$f$ moments of cerium arrange to form a geometrically frustrated kagome lattice. Due to frustration, in addition to Kondo- and Ruderman-Kittel-Kasuya-Yosida interactions, this metallic system shows a long-range magnetic order (LRO) wi
Externí odkaz:
http://arxiv.org/abs/2404.01917
Autor:
Dawczak-Dębicki, H., Kliemt, Kristin, Crivillero, M. Victoria Ale, Küchler, R., Krellner, C., Stockert, O., Wirth, S.
Single crystals of DyRh$_2$Si$_2$ and HoRh$_2$Si$_2$ were investigated by thermal expansion and magnetostriction. The different types of magnetic order can clearly be seen in these measurements, particularly the canting of the moments away from the c
Externí odkaz:
http://arxiv.org/abs/2402.04072
Autor:
Shan, Z. Y., Smidman, M., Stockert, O., Liu, Y., Yuan, H. Q., Sun, P. J., Wirth, S., Schuberth, E., Steglich, F.
The heavy-fermion superconductor CeCu$_{2}$Si$_{2}$ exhibits two-band, $d$-wave superconductivity with a finite energy gap over the whole Fermi surface around the magnetic instability where 4$f$ antiferrerromagnetic order is suppressed. In contrast,
Externí odkaz:
http://arxiv.org/abs/2208.14663
Autor:
Majumder, M., Gupta, R., Luetkens, H., Khasanov, R., Stockert, O., Gegenwart, P., Fritsch, V.
Publikováno v:
Phys. Rev. B 105, L180402 (2022)
CePdAl is a prototypical frustrated Kondo lattice with partial long-range order (LRO) at $T_\mathrm{N}=2.7$ K. Previous bulk experiments under hydrostatic pressure found signatures for a quantum critical regime that extends from $p_\mathrm{c} \approx
Externí odkaz:
http://arxiv.org/abs/2202.11975
Autor:
Nikitin, S. E., Franco, D. G., Kwon, J., Bewley, R., Podlesnyak, A., Hoser, A., Koza, M. M., Geibel, C., Stockert, O.
Publikováno v:
Phys. Rev. B 101, 214426 (2020)
CeCoSi is an intermetallic antiferromagnet with a very unusual temperature-pressure phase diagram: at ambient pressure it orders below $T_{\mathrm{N}} = 8.8$ K, while application of hydrostatic pressure induces a new magnetically ordered phase with e
Externí odkaz:
http://arxiv.org/abs/2004.00442
Autor:
Stockert, O., Steglich, F.
Publikováno v:
In Physica C: Superconductivity and its applications 15 December 2023 615
Publikováno v:
Nature Physics 13, 742-745 (2017)
The Third Law of Thermodynamics states that the entropy of any system in equilibrium has to vanish at absolute zero temperature. At nonzero temperatures, on the other hand, matter is expected to accumulate entropy near a quantum critical point (QCP),
Externí odkaz:
http://arxiv.org/abs/1812.02940
Akademický článek
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Autor:
Smidman, M., Stockert, O., Arndt, J., Pang, G. M., Jiao, L., Yuan, H. Q., Vieyra, H. A., Kitagawa, S., Ishida, K., Fujiwara, K., Kobayashi, T. C., Schuberth, E., Tippmann, M., Steinke, L., Lausberg, S., Steppke, A., Brando, M., Pfau, H., Stockert, U., Sun, P., Friedemann, S., Wirth, S., Krellner, C., Kirchner, S., Nica, E. M., Yu, R., Si, Q., Steglich, F.
In this paper the low-temperature properties of two isostructural canonical heavy-fermion compounds are contrasted with regards to the interplay between antiferromagnetic (AF) quantum criticality and superconductivity. For CeCu$_2$Si$_2$, fully-gappe
Externí odkaz:
http://arxiv.org/abs/1808.02277
Autor:
Grube, K., Pintschovius, L., Weber, F., Castellan, J. -P., Zaum, S., Kuntz, S., Schweiss, P., Stockert, O., Bachus, S., Shimura, Y., Fritsch, V., Löhneysen, H. v.
Publikováno v:
Phys. Rev. Lett. 121, 087203 (2018)
The heavy-fermion compound CeCu$_{6-x}$Au$_x$ has become a model system for unconventional magnetic quantum criticality. For small Au concentrations $0 \leq x < 0.16$, the compound undergoes a structural transition from orthorhombic to monoclinic cry
Externí odkaz:
http://arxiv.org/abs/1804.04513