1. Pressure driven magnetic order in Sr1-xCaxCo2P2
- Author
-
Forslund, Ola Kenji, Andreica, Daniel, Sassa, Yasmine, Imai, Masaki, Michioka, Chishiro, Yoshimura, Kazuyoshi, Guguchia, Zurab, Shermadini, Zurab, Khasanov, Rustem, Sugiyama, Jun, Månsson, Martin, Forslund, Ola Kenji, Andreica, Daniel, Sassa, Yasmine, Imai, Masaki, Michioka, Chishiro, Yoshimura, Kazuyoshi, Guguchia, Zurab, Shermadini, Zurab, Khasanov, Rustem, Sugiyama, Jun, and Månsson, Martin
- Abstract
The magnetic phase diagram of Sr1-xCaxCo2P2 as a function of hydrostatic pressure and temperature is investigated by means of high pressure muon spin rotation, relaxation and resonance (mu+SR). The weak pressure dependence for the x not equal 1- compounds suggests that the rich phase diagram of Sr1-xCaxCo2P2 as a function of x at ambient pressure may not solely be attributed to chemical pressure effects. The x = 1 compound on the other hand reveals a high pressure dependence, where the long range magnetic order is fully suppressed at p(c2) approximate to 9.8 kbar, which seem to be a first order transition. In addition, an intermediate phase consisting of magnetic domains is formed above p(c1) approximate to 8 kbar where they co-exist with a magnetically disordered state. These domains are likely to be ferromagnetic islands (FMI) and consist of an high- (FMI-(1)) and low-temperature (FMI-(2)) region, respectively, separated by a phase boundary at T-i approximate to 20 K. This kind of co-existence is unusual and is originating from a coupling between lattice and magnetic degrees of freedoms., QC 20221114
- Published
- 2022
- Full Text
- View/download PDF