a note on ti

diff --git a/bibdb/bibdb.bib b/bibdb/bibdb.bib
index 8a2ec93..4541691 100644 (file)
--- a/bibdb/bibdb.bib
+++ b/bibdb/bibdb.bib
@@ -6429,4 +6429,5 @@
   doi =          "10.1103/PhysRevLett.106.106802",
   URL =          "http://link.aps.org/doi/10.1103/PhysRevLett.106.106802",
   publisher =    "American Physical Society",
+  notes     =    "topological insulator without spin-orbit coupling",
 }