TY  - JOUR
AU  - He, Mingquan
AU  - Wang, Xiao
AU  - Wang, Liran
AU  - Hardy, Frédéric
AU  - Wolf, Thomas
AU  - Adelmann, Peter
AU  - Brückel, Thomas
AU  - Su, Yixi
AU  - Meingast, Christoph
TI  - Uniaxial and hydrostatic pressure effects in α-RuCl 3 single crystals via thermal-expansion measurements
JO  - Journal of physics / Condensed matter
VL  - 30
IS  - 38
SN  - 1361-648X
CY  - Bristol
PB  - IOP Publ.
M1  - FZJ-2018-05445
SP  - 385702 -
PY  - 2018
AB  - We present high-resolution thermal-expansion and specific-heat measurements of single crystalline α-RuCl3. An extremely hysteretic structural transition expanding over 100 K is observed by thermal-expansion along both crystallographic axes, which we attribute to a change of stacking sequence of the RuCl3 layers. Three magnetic transitions are observed, which we link to the different stacking sequences. Using our data and thermodynamic relations, we derive the uniaxial and hydrostatic pressure derivatives of all three magnetic transitions. Our results demonstrate that magnetic order of the major transition at  ~7 K should be totally suppressed by very moderate pressures of 0.3 GPa. Finally, we discuss why our results differ from recent hydrostatic pressure measurements and suggest a possible route to reaching the spin-liquid state in α-RuCl3.
LB  - PUB:(DE-HGF)16
C6  - pmid:30106004
UR  - <Go to ISI:>//WOS:000443768600001
DO  - DOI:10.1088/1361-648X/aada1e
UR  - https://juser.fz-juelich.de/record/852517
ER  -