Probing and imaging spin interactions with a magnetic single-molecule sensor

被引：111

作者：

Czap, Gregory ^{[1
]}

Wagner, Peter J. ^{[1
]}

Xue, Feng ^{[2
,3
,4
]}

Gu, Lei ^{[1
]}

Li, Jie ^{[1
,2
,3
,4
]}

Yao, Jiang ^{[1
]}

Wu, Ruqian ^{[1
,2
,3
,4
]}

Ho, W. ^{[1
,5
]}

机构：

[1] Univ Calif Irvine, Dept Phys & Astron, Irvine, CA 92697 USA

[2] Fudan Univ, State Key Lab Surface Phys, Shanghai 200433, Peoples R China

[3] Fudan Univ, Key Lab Computat Phys Sci MOE, Shanghai 200433, Peoples R China

[4] Fudan Univ, Dept Phys, Shanghai 200433, Peoples R China

[5] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

SCIENCE | 2019年 / 364卷 / 6441期

基金：

美国国家科学基金会;

关键词：

TOTAL-ENERGY CALCULATIONS; QUANTUM COHERENCE; TIMES; NICKELOCENE; FIELD;

D O I：

10.1126/science.aaw7505

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Magnetic single atoms and molecules are receiving intensifying research focus because of their potential as the smallest possible memory, spintronic, and qubit elements. Scanning probe microscopes used to study these systems have benefited greatly from new techniques that use molecule-functionalized tips to enhance spatial and spectroscopic resolutions and enable new sensing capabilities. We demonstrate a microscopy technique that uses a magnetic molecule, Ni(cyclopentadienyl)(2), adsorbed at the apex of a scanning probe tip, to sense exchange interactions with another molecule adsorbed on a Ag(110) surface in a continuously tunable fashion in all three spatial directions. We further used the probe to image contours of exchange interaction strength, revealing angstrom-scale regions where the quantum states of two magnetic molecules strongly mix. Our results pave the way for new nanoscale imaging capabilities based on magnetic single-molecule sensors.

引用

页码：670 / +

页数：33

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