Experimental evidence for Bose-glass behavior in Bi2Sr2CaCu2O8 crystals with columnar defects

M. Konczykowski, N. Chikumoto, V. M. Vinokur, M. V. Feigelman

Результат исследований: Вклад в журналСтатьярецензирование

48 Цитирования (Scopus)

Аннотация

Giant, strongly nonlogarithmic, magnetic relaxation was observed in BSCCO-2212 crystals irradiated with 5.8-GeV Pb ions due to flux pinning in columnar defects. The underlying flux-creep mechanism was identified as a vortex-loop nucleation process proposed by Nelson and Vinokur [Phys. Rev. Lett. 68, 2398 (1992)]. The crossover in the creep regime from depinning from a single rod to variable-range hopping was observed as a function of rod density. Another type of crossover, from combined pinning involving preexisting defects to purely columnar defect pinning, was observed on crossing the irreversibility line of the pristine material.

Язык оригиналаАнглийский
Страницы (с-по)3957-3960
Число страниц4
ЖурналPhysical Review B
Том51
Номер выпуска6
DOI
СостояниеОпубликовано - 1995
Опубликовано для внешнего пользованияДа

Fingerprint

Подробные сведения о темах исследования «Experimental evidence for Bose-glass behavior in Bi2Sr2CaCu2O8 crystals with columnar defects». Вместе они формируют уникальный семантический отпечаток (fingerprint).

Цитировать