Pressure driven magnetic order in Sr 1-x Ca x Co 2 P 2
Artikel i vetenskaplig tidskrift, 2022

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 (μ+SR). The weak pressure dependence for the x≠ 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 pc 2≈ 9.8 kbar, which seem to be a first order transition. In addition, an intermediate phase consisting of magnetic domains is formed above pc 1≈ 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 Ti≈ 20 K. This kind of co-existence is unusual and is originating from a coupling between lattice and magnetic degrees of freedoms.

Författare

Ola Kenji Forslund

Chalmers, Fysik, Materialfysik

Kungliga Tekniska Högskolan (KTH)

Daniel Andreica

Universitatea Babes-Bolyai

Yasmine Sassa

Chalmers, Fysik, Materialfysik

Masaki Imai

Graduate School of Science

Chishiro Michioka

Graduate School of Science

Kazuyoshi Yoshimura

Graduate School of Science

Zurab Guguchia

Paul Scherrer Institut

Zurab Shermadini

Paul Scherrer Institut

Rustem Khasanov

Paul Scherrer Institut

Jun Sugiyama

Comprehensive Research Organization for Science and Society

Martin Månsson

Kungliga Tekniska Högskolan (KTH)

Scientific Reports

2045-2322 (ISSN) 20452322 (eISSN)

Vol. 12 1 17526

Ämneskategorier

Oorganisk kemi

Fysikalisk kemi

Den kondenserade materiens fysik

DOI

10.1038/s41598-022-21699-y

PubMed

36266305

Mer information

Senast uppdaterat

2023-10-26