Pregled bibliografske jedinice broj: 236096
Magnetic-field-induced density of states in MgB_2: Spin susceptibility measured by conduction-electron spin resonance
Magnetic-field-induced density of states in MgB_2: Spin susceptibility measured by conduction-electron spin resonance // Physical Review B, 72 (2005), 1. (međunarodna recenzija, članak, znanstveni)
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Naslov
Magnetic-field-induced density of states in MgB_2: Spin susceptibility measured by conduction-electron spin resonance
Autori
Simon, F. ; Janossy, A. ; Feher, T. ; Muranyi, F. ; Garaj, Slaven ; Forro, Laszlo ; Petrović, C. ; Bud'ko, S. ; Ribeiro, R. A. ; Canfield, P. C.
Izvornik
Physical Review B (1098-0121) 72
(2005), 1;
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
Magnesium compounds; Type II superconductors; Electronic density of states; Magnetic susceptibility; Paramagnetic resonance; Superconducting energy gap
Sažetak
The magnetic-field dependence of the electron spin susceptibility chi(s) was measured in the superconducting state of high-purity MgB_2 fine powders from the intensity of the conduction-electron spin resonance at 3.8, 9.4, and 35 GHz. The measurements confirm that a large part of the density of states is restored at low temperatures at fields below 1 T in qualitative agreement with the closing of the pi band gaps in the two-band model. However, the increase of chi(s) with field and temperature is larger than expected from current superconductor models of MgB_2.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
