Refine your search�ソスF     
Report No.
 - 

Pressure-induced magnetic quantum phase transition in gapped spin system KCuCl$$_{3}$$

Goto, Kenji; Fujisawa, Masashi*; Tanaka, Hidekazu*; Uwatoko, Yoshiya*; Osawa, Akira*; Osakabe, Toyotaka  ; Kakurai, Kazuhisa

Magnetization and neutron elastic scattering experiments under hydrostatic pressure were performed on KCuCl$$_{3}$$, which is a three-dimensionally coupled spin dimer system with a gapped ground state. It was found that the intradimer interaction decreases with increasing hydrostatic pressure, while the sum of the interdimer interactions increases. This leads to the shrinkage of the spin gap. A quantum phase transition from a gapped state to an antiferromagnetic state occurs at Pc$$sim$$8.2 kbar. For P$$>$$Pc, magnetic reflections were observed at reciprocal lattice points equivalent to those for the lowest magnetic excitation at zero temperature. This confirms that the spin gap decreases and closes under applied pressure.

Accesses

:

- Accesses

InCites™

:

Percentile:75.81

Category:Physics, Multidisciplinary

Altmetrics

:

[CLARIVATE ANALYTICS], [WEB OF SCIENCE], [HIGHLY CITED PAPER & CUP LOGO] and [HOT PAPER & FIRE LOGO] are trademarks of Clarivate Analytics, and/or its affiliated company or companies, and used herein by permission and/or license.