The inventors have developed a straightforward and accessible approach for {HEAD ~ selective single crystal growth} of {TAIL ~ clathrate I} and clathrate II intermetallic clathrates 
The inventors have developed a straightforward and accessible approach for { HEAD ~ selective single crystal growth } of { TAIL ~ clathrate I } and clathrate II intermetallic clathrates
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH