Nanoscale imaging magnetometry with diamond spins under ambient conditions

Gopalakrishnan Balasubramanian, I. Y. Chan, Roman Kolesov, Mohannad Al-Hmoud, Julia Tisler, Chang Shin, Changdong Kim, Aleksander Wojcik, Philip R. Hemmer, Anke Krueger, Tobias Hanke, Alfred Leitenstorfer, Rudolf Bratschitsch, Fedor Jelezko () and Jörg Wrachtrup
Additional contact information
Gopalakrishnan Balasubramanian: 3 Physikalisches Institut, Universität Stuttgart
I. Y. Chan: Brandeis University, Waltham, Massachusetts 02454, USA
Roman Kolesov: 3 Physikalisches Institut, Universität Stuttgart
Mohannad Al-Hmoud: 3 Physikalisches Institut, Universität Stuttgart
Julia Tisler: 3 Physikalisches Institut, Universität Stuttgart
Chang Shin: Texas A&M University, College Station, Texas 77843, USA
Changdong Kim: Texas A&M University, College Station, Texas 77843, USA
Aleksander Wojcik: Texas A&M University, College Station, Texas 77843, USA
Philip R. Hemmer: Texas A&M University, College Station, Texas 77843, USA
Anke Krueger: Otto-Diels-Institut für Organische Chemie, Christian-Albrechts-Universität zu Kiel
Tobias Hanke: University of Konstanz and Center for Applied Photonics
Alfred Leitenstorfer: University of Konstanz and Center for Applied Photonics
Rudolf Bratschitsch: University of Konstanz and Center for Applied Photonics
Fedor Jelezko: 3 Physikalisches Institut, Universität Stuttgart
Jörg Wrachtrup: 3 Physikalisches Institut, Universität Stuttgart

Nature, 2008, vol. 455, issue 7213, 648-651

Abstract: Spintronics: diamonds make sense A type of natural impurity in diamond crystals, called a nitrogen-vacancy centre, has a unique, long-lived single electron spin state that can be controlled and detected optically. This property can be used to create 'spintronics' devices and has possible application in quantum information processing. Two groups this week describe the application of this technology to nanoscale magnetic resonance imaging. Maze et al. demonstrate magnetic sensing using coherent control of diamond spins. They show that in principle, precision measurements of nano-tesla magnetic fields are possible, corresponding roughly to the field of a single proton at a distance of 10 nm. Balasubramanian et al. demonstrate initial steps towards a sensitive, high-resolution imaging technique using diamond spins. They show that the location of single nitrogen-vacancy spins can be determined to 5-nm resolution. In an accompanying News & Views, Michael Romalis observes that a combination of these two techniques could lead to detection and imaging of individual nuclear spins, even the structure determination for a single molecule. And as both experiments were done at room temperature, biological applications of these methods can be anticipated.

Date: 2008
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DOI: 10.1038/nature07278

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