Evidence for resonant magnetic tunneling of rare-earth ions: from insulating to metallic matrix

被引：16

作者：

Barbara, B

Giraud, R

Wernsdorfer, W

Mailly, D

Lejay, P

Tkachuk, A

Suzuki, H

机构：

[1] CNRS, Lab Louis Neel, F-38042 Grenoble 09, France

[2] CNRS, Lab Photon & Nanostruct, Marcoussis, France

[3] CNRS, Ctr Rech Tres Basses Temp, F-38042 Grenoble, France

[4] All Russia SI Vavilov State Opt Inst, St Petersburg 199034, Russia

[5] NIMS, Nanomat Lab, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 2004年 / 272卷

关键词：

quantum tunneling; entanglement; rare-earth; impurities;

D O I：

10.1016/j.jmmm.2003.12.654

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tunneling of the total angular momentum of Ho3+ in LiYF4 (insulating matrix) is demonstrated. Due to strong hyperfine interactions, electronic angular momentum and nuclear spin tunnel simultaneously (two-body entanglement) and due to weak dipolar interactions, pairs of Ho3+ ions also tunnel simultaneously (four-body entanglement). Similar results obtained with a metallic matrix (YRu2Si2) prove the persistence of tunneling in the presence of free carriers. (C) 2003 Elsevier B.V. All rights reserved.

引用

页码：1024 / 1029

页数：6

共 23 条

[1] ISOTOPE STRUCTURE IN OPTICAL-SPECTRA OF LIYF4-HO3+ [J].