Website  abstract   bibtex   

@article{
 title = {Pressure-induced changes in transport properties of layered La1.2Ca1.8Mn2O7},
 type = {article},
 year = {1997},
 identifiers = {[object Object]},
 keywords = {giant magnetoresistance,low-temperature magnetoresistance,manganates,manganese,oxides},
 pages = {12688-12690},
 volume = {56},
 websites = {<Go to ISI>://WOS:A1997YH58800002},
 id = {3d9ab91e-8f19-3f16-9c56-4d44de8a3ef0},
 created = {2016-07-19T13:46:35.000Z},
 file_attached = {false},
 profile_id = {665883f5-c199-38de-9ab9-8da2850f5b5e},
 last_modified = {2016-07-19T13:46:52.000Z},
 read = {false},
 starred = {false},
 authored = {true},
 confirmed = {true},
 hidden = {false},
 source_type = {Journal Article},
 language = {English},
 notes = {ISI Document Delivery No.: YH588<br/>Times Cited: 9<br/>Cited Reference Count: 12<br/>Kamenev, KV Lees, MR Balakrishnan, G Paul, DM<br/>American physical soc<br/>College pk},
 abstract = {The transport properties of a single crystal of La1.2Ca1.8Mn2O7 with the layered Sr3Ti2O7-type perovskite structure have been studied under hydrostatic pressures of up to similar to 9 kbar. It is found that La1.2Ca1.8Mn2O7 undergoes a first-order phase transition from a paramagnetic insulating to a low-temperature ferromagnetic metallic state which is accompanied by a large decrease in the electrical resistivity. At ambient pressure the magnetic phase transition takes place at T-c=242 K and as the external pressure is applied the critical temperature increases Linearly at a rate of 1.1 K/kbar. The present results reflect the competition between double and superexchange resulting from two-dimensional Mn-O-Mn networks and can be interpreted in terms of the exchange striction model.},
 bibtype = {article},
 author = {Kamenev, K V and Lees, M R and Balakrishnan, G and Paul, D M},
 journal = {Physical Review B},
 number = {20}
}