SINGLE-DOMAIN SWITCHING INVESTIGATED USING TELEGRAPH NOISE SPECTROSCOPY - POSSIBLE EVIDENCE FOR MACROSCOPIC QUANTUM TUNNELING

被引：31

作者：

COPPINGER, F

GENOE, J

MAUDE, DK

GENNSER, U

PORTAL, JC

SINGER, KE

RUTTER, P

TASKIN, T

PEAKER, AR

WRIGHT, AC

机构：

[1] INST NATL SCI APPL,F-31077 TOULOUSE,FRANCE

[2] UNIV MANCHESTER,INST SCI & TECHNOL,DEPT ELECT ENGN & ELECTR,MANCHESTER M60 1QD,LANCS,ENGLAND

[3] UNIV MANCHESTER,INST SCI & TECHNOL,CTR ELECTR MAT,MANCHESTER M60 1QD,LANCS,ENGLAND

[4] DEESIDE COLL,NE WALES INST,AMRL,CONNAHS QUAY CH5 4HR,CLWYD,WALES

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.75.3513

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Telegraph noise, i.e., two-level fluctuations (TLF), in the magnetoresistance of Er-doped GaAs has been used to probe the magnetic moment of the small ErAs clusters formed during the molecular beam epitaxy growth process. At high temperatures the TLF are thermally activated but below 350 mK tunneling of the magnetization dominates.

引用

页码：3513 / 3516

页数：4

共 13 条

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