APS » PROLA » Phys. Rev. B » Volume 64 » Issue 13

Phys. Rev. B 64, 132409 (2001) [3 pages]

Cr3+-doping effects on KTiOPO4 studied by 31P nuclear magnetic resonance

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K. S. Kim, E. R. Park, C. H. Lee, D. K. Oh, and Cheol Eui Lee *
Department of Physics, Korea University, Seoul 136-701, Korea

N. S. Dalal and R. Fu
Department of Chemistry, Florida State University and National High Magnetic Field Laboratory, Tallahassee, Florida 32306-4390

Received 3 May 2001; published 11 September 2001

Undoped and Cr3+-doped KTiOPO4 (KTP) systems were studied by means of 31P nuclear-magnetic-resonance measurements. The high-resolution 31P isotropic-chemical-shift measurements were employed as a new probe in addition to the laboratory and rotating frame spin-lattice relaxation-time measurements. As a result, two phase-transitional behaviors ascribed to the changes in the dominant charge carriers were well characterized. Furthermore, it was found that the Cr3+ doping of the KTP system results in significant shifts in the transition temperatures.


©2001 The American Physical Society

URL: http://link.aps.org/abstract/PRB/v64/e132409
DOI: 10.1103/PhysRevB.64.132409
PACS: 76.60.-k, 61.72.-y, 64.70.Kb

* Corresponding author. FAX: 82-2-927-3292. Email address: rscel@korea.ac.kr

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